; Prefer https to http in many URLs

These were all tested with https and confirmed working.

66 files changed, 170 insertions, 170 deletions

diff --git a/lisp/ansi-color.el b/lisp/ansi-color.el
index 4130f5aad3c..141ad2353e8 100644
--- a/lisp/ansi-color.el
+++ b/lisp/ansi-color.el
@@ -536,7 +536,7 @@ codes.	Finally, the so changed list of codes is returned."
                      (cons new (remq new codes))))
                 (2 (unless (memq new '(20 26 28 29))
                      ;; The standard says `21 doubly underlined' while
-                     ;; http://en.wikipedia.org/wiki/ANSI_escape_code claims
+                     ;; https://en.wikipedia.org/wiki/ANSI_escape_code claims
                      ;; `21 Bright/Bold: off or Underline: Double'.
                      (remq (- new 20) (pcase new
                                         (22 (remq 1 codes))
diff --git a/lisp/calc/calc-units.el b/lisp/calc/calc-units.el
index 7b86eb095b0..709c09ea099 100644
--- a/lisp/calc/calc-units.el
+++ b/lisp/calc/calc-units.el
@@ -37,14 +37,14 @@
 ;;; Updated April 2002 by Jochen Küpper
 
 ;;; Updated August 2007, using
-;;;     CODATA (http://physics.nist.gov/cuu/Constants/index.html)
-;;;     NIST   (http://physics.nist.gov/Pubs/SP811/appenB9.html)
+;;;     CODATA (https://physics.nist.gov/cuu/Constants/index.html)
+;;;     NIST   (https://physics.nist.gov/Pubs/SP811/appenB9.html)
 ;;;     ESUWM  (Encyclopaedia of Scientific Units, Weights and
 ;;;             Measures, by François Cardarelli)
 ;;; All conversions are exact unless otherwise noted.
 
 ;; CODATA values updated February 2016, using 2014 adjustment
-;; http://arxiv.org/pdf/1507.07956.pdf
+;; https://arxiv.org/pdf/1507.07956.pdf
 
 ;; Updated November 2018 for the redefinition of the SI
 ;; https://www.bipm.org/utils/en/pdf/CGPM/Draft-Resolution-A-EN.pdf
@@ -59,7 +59,7 @@
     ( mi      "5280 ft"              "Mile" )
     ( au      "149597870691. m"      "Astronomical Unit" nil
               "149597870691 m (*)")
-              ;; (approx) NASA JPL (http://neo.jpl.nasa.gov/glossary/au.html)
+              ;; (approx) NASA JPL (https://neo.jpl.nasa.gov/glossary/au.html)
     ( lyr     "c yr"                 "Light Year" )
     ( pc      "3.0856775854*10^16 m" "Parsec  (**)" nil
               "3.0856775854 10^16 m (*)") ;; (approx) ESUWM
diff --git a/lisp/cedet/semantic/java.el b/lisp/cedet/semantic/java.el
index 2aa0ab0e3fd..cc53f69691b 100644
--- a/lisp/cedet/semantic/java.el
+++ b/lisp/cedet/semantic/java.el
@@ -321,7 +321,7 @@ If NOSNARF is `lex', then return the semantic lex token."
 (defvar semantic-java-doc-line-tags nil
   "Valid javadoc line tags.
 Ordered following Sun's Tag Convention at
-<http://java.sun.com/products/jdk/javadoc/writingdoccomments/index.html>")
+<https://java.sun.com/products/jdk/javadoc/writingdoccomments/index.html>")
 
 (defvar semantic-java-doc-with-name-tags nil
   "Javadoc tags which have a name.")
diff --git a/lisp/descr-text.el b/lisp/descr-text.el
index 9305664e31a..ec9a9680137 100644
--- a/lisp/descr-text.el
+++ b/lisp/descr-text.el
@@ -210,7 +210,7 @@ multilingual development.
 
 This is a fairly large file, not typically present on GNU systems.
 At the time of writing it is at the URL
-`http://www.unicode.org/Public/UNIDATA/UnicodeData.txt'."
+`https://www.unicode.org/Public/UNIDATA/UnicodeData.txt'."
   :group 'mule
   :version "22.1"
   :type '(choice (const :tag "None" nil)
diff --git a/lisp/doc-view.el b/lisp/doc-view.el
index 60f6d6350c9..f958cfacbfc 100644
--- a/lisp/doc-view.el
+++ b/lisp/doc-view.el
@@ -24,8 +24,8 @@
 
 ;; doc-view.el requires GNU Emacs 22.1 or newer.  You also need Ghostscript,
 ;; `dvipdf' (comes with Ghostscript) or `dvipdfm' (comes with teTeX or TeXLive)
-;; and `pdftotext', which comes with xpdf (http://www.foolabs.com/xpdf/) or
-;; poppler (http://poppler.freedesktop.org/).
+;; and `pdftotext', which comes with xpdf (https://www.foolabs.com/xpdf/) or
+;; poppler (https://poppler.freedesktop.org/).
 
 ;;; Commentary:
 
diff --git a/lisp/erc/erc-button.el b/lisp/erc/erc-button.el
index 5e6f7c8d107..b799b2427c6 100644
--- a/lisp/erc/erc-button.el
+++ b/lisp/erc/erc-button.el
@@ -198,12 +198,12 @@ PAR is a number of a regexp grouping whose text will be passed to
                         :inline t
                         (integer :tag "Regexp section number")))))
 
-(defcustom erc-emacswiki-url "http://www.emacswiki.org/cgi-bin/wiki.pl?"
+(defcustom erc-emacswiki-url "https://www.emacswiki.org/cgi-bin/wiki.pl?"
   "URL of the EmacsWiki Homepage."
   :group 'erc-button
   :type 'string)
 
-(defcustom erc-emacswiki-lisp-url "http://www.emacswiki.org/elisp/"
+(defcustom erc-emacswiki-lisp-url "https://www.emacswiki.org/elisp/"
   "URL of the EmacsWiki ELisp area."
   :group 'erc-button
   :type 'string)
diff --git a/lisp/files.el b/lisp/files.el
index 53a5fcb87e9..c2c58dae934 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -1392,7 +1392,7 @@ it means chase no more than that many links and then stop."
     newname))
 
 ;; A handy function to display file sizes in human-readable form.
-;; See http://en.wikipedia.org/wiki/Kibibyte for the reference.
+;; See https://en.wikipedia.org/wiki/Kibibyte for the reference.
 (defun file-size-human-readable (file-size &optional flavor space unit)
   "Produce a string showing FILE-SIZE in human-readable form.
 
@@ -7776,7 +7776,7 @@ Otherwise, trash FILENAME using the freedesktop.org conventions,
            (let (delete-by-moving-to-trash)
              (rename-file fn new-fn))))
         ;; Otherwise, use the freedesktop.org method, as specified at
-        ;; http://freedesktop.org/wiki/Specifications/trash-spec
+        ;; https://freedesktop.org/wiki/Specifications/trash-spec
         (t
          (let* ((xdg-data-dir
                  (directory-file-name
diff --git a/lisp/gnus/message.el b/lisp/gnus/message.el
index ef010d6e9c6..cf762776893 100644
--- a/lisp/gnus/message.el
+++ b/lisp/gnus/message.el
@@ -5659,7 +5659,7 @@ The result is a fixnum."
                (mail-file-babyl-p filename))
           ;; gnus-output-to-mail does the wrong thing with live, mbox
           ;; Rmail buffers in Emacs 23.
-          ;; http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=597255
+          ;; https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=597255
           (let ((buff (find-buffer-visiting filename)))
             (and buff (with-current-buffer buff
                         (eq major-mode 'rmail-mode)))))
@@ -8591,7 +8591,7 @@ Meant for use on `completion-at-point-functions'."
 
 ;; FIXME: What is the most common term (circular letter, form letter, serial
 ;; letter, standard letter) for such kind of letter?  See also
-;; <http://en.wikipedia.org/wiki/Form_letter>
+;; <https://en.wikipedia.org/wiki/Form_letter>
 
 ;; FIXME: Maybe extent message-mode's font-lock support to recognize
 ;; `message-form-letter-separator', i.e. highlight each message like a single
diff --git a/lisp/gnus/mm-util.el b/lisp/gnus/mm-util.el
index 282465722de..958e24c39f5 100644
--- a/lisp/gnus/mm-util.el
+++ b/lisp/gnus/mm-util.el
@@ -70,7 +70,7 @@
                  (mm-coding-system-p 'cp932))
         '((windows-31j . cp932)))
     ;; Charset name: GBK, Charset aliases: CP936, MS936, windows-936
-    ;; http://www.iana.org/assignments/charset-reg/GBK
+    ;; https://www.iana.org/assignments/charset-reg/GBK
     ;; Emacs 22.1 has cp936, but not gbk, so we alias it:
     ,@(when (and (not (mm-coding-system-p 'gbk))
                  (mm-coding-system-p 'cp936))
diff --git a/lisp/gnus/nnrss.el b/lisp/gnus/nnrss.el
index 116d7ee9fb2..48c07da1cc8 100644
--- a/lisp/gnus/nnrss.el
+++ b/lisp/gnus/nnrss.el
@@ -450,7 +450,7 @@ nnrss: %s: Not valid XML %s and libxml-parse-html-region doesn't work %s"
 (defun nnrss-normalize-date (date)
   "Return a date string of DATE in the style of RFC 822 and its successors.
 This function handles the ISO 8601 date format described in
-URL `http://www.w3.org/TR/NOTE-datetime', and also the RFC 822 style
+URL `https://www.w3.org/TR/NOTE-datetime', and also the RFC 822 style
 which RSS 2.0 allows."
   (let (case-fold-search vector year month day time zone cts given)
     (cond ((null date))                 ; do nothing for this case
diff --git a/lisp/gnus/spam-stat.el b/lisp/gnus/spam-stat.el
index 3da45a2b623..bf593865d72 100644
--- a/lisp/gnus/spam-stat.el
+++ b/lisp/gnus/spam-stat.el
@@ -4,7 +4,7 @@
 
 ;; Author: Alex Schroeder <alex@gnu.org>
 ;; Keywords: network
-;; URL: http://www.emacswiki.org/cgi-bin/wiki.pl?SpamStat
+;; URL: https://www.emacswiki.org/cgi-bin/wiki.pl?SpamStat
 
 ;; This file is part of GNU Emacs.
 
diff --git a/lisp/image-dired.el b/lisp/image-dired.el
index 6f297672caf..c539aaf33f6 100644
--- a/lisp/image-dired.el
+++ b/lisp/image-dired.el
@@ -60,7 +60,7 @@
 ;; =============
 ;;
 ;; * The ImageMagick package.  Currently, `convert' and `mogrify' are
-;; used.  Find it here: http://www.imagemagick.org.
+;; used.  Find it here: https://www.imagemagick.org.
 ;;
 ;; * For non-lossy rotation of JPEG images, the JpegTRAN program is
 ;; needed.
@@ -205,7 +205,7 @@ the index.html page that image-dired creates."
   :group 'image-dired)
 
 (defcustom image-dired-gallery-image-root-url
-"http://your.own.server/image-diredpics"
+"https://your.own.server/image-diredpics"
   "URL where the full size images are to be found.
 Note that this path has to be configured in your web server.  Image-Dired
 expects to find pictures in this directory."
@@ -213,7 +213,7 @@ expects to find pictures in this directory."
   :group 'image-dired)
 
 (defcustom image-dired-gallery-thumb-image-root-url
-"http://your.own.server/image-diredthumbs"
+"https://your.own.server/image-diredthumbs"
   "URL where the thumbnail images are to be found.
 Note that this path has to be configured in your web server.  Image-Dired
 expects to find pictures in this directory."
diff --git a/lisp/international/ucs-normalize.el b/lisp/international/ucs-normalize.el
index 6b7419fa4cd..33d0f0dda29 100644
--- a/lisp/international/ucs-normalize.el
+++ b/lisp/international/ucs-normalize.el
@@ -25,8 +25,8 @@
 ;; This program has passed the NormalizationTest-5.2.0.txt.
 ;;
 ;; References:
-;; http://www.unicode.org/reports/tr15/
-;; http://www.unicode.org/review/pr-29.html
+;; https://www.unicode.org/reports/tr15/
+;; https://www.unicode.org/review/pr-29.html
 ;;
 ;; HFS-Normalization:
 ;; Reference:
@@ -131,7 +131,7 @@
       #x1D1BF #x1D1C0)
    "Composition Exclusion List.
   This list is taken from
-    http://www.unicode.org/Public/UNIDATA/5.2/CompositionExclusions.txt")
+    https://www.unicode.org/Public/UNIDATA/5.2/CompositionExclusions.txt")
 
   ;; Unicode ranges that decompositions & combining characters are defined.
   (defvar check-range nil)
diff --git a/lisp/ldefs-boot.el b/lisp/ldefs-boot.el
index ec31e21d7d8..3260b67a993 100644
--- a/lisp/ldefs-boot.el
+++ b/lisp/ldefs-boot.el
@@ -1528,7 +1528,7 @@ ENTRY is the name of a password-store entry.
 The key used to retrieve the password is the symbol `secret'.
 
 The convention used as the format for a password-store file is
-the following (see http://www.passwordstore.org/#organization):
+the following (see https://www.passwordstore.org/#organization):
 
 secret
 key1: value1
@@ -17632,7 +17632,7 @@ The main features of this mode are
    \\[idlwave-info] to display (complain to your sysadmin if that does
    not work).  For Postscript, PDF, and HTML versions of the
    documentation, check IDLWAVE's homepage at URL
-   `http://github.com/jdtsmith/idlwave'.
+   `https://github.com/jdtsmith/idlwave'.
    IDLWAVE has customize support - see the group `idlwave'.
 
 10.Keybindings
@@ -21650,7 +21650,7 @@ upper atmosphere.  These cause momentary pockets of higher-pressure
 air to form, which act as lenses that deflect incoming cosmic rays,
 focusing them to strike the drive platter and flip the desired bit.
 You can type `M-x butterfly C-M-c' to run it.  This is a permuted
-variation of `C-x M-c M-butterfly' from url `http://xkcd.com/378/'." t nil)
+variation of `C-x M-c M-butterfly' from url `https://xkcd.com/378/'." t nil)
 
 (autoload 'list-dynamic-libraries "misc" "\
 Display a list of all dynamic libraries known to Emacs.
@@ -28941,7 +28941,7 @@ to use for finding the schema.
 ;;;### (autoloads nil "rng-xsd" "nxml/rng-xsd.el" (0 0 0 0))
 ;;; Generated autoloads from nxml/rng-xsd.el
 
-(put 'http://www\.w3\.org/2001/XMLSchema-datatypes 'rng-dt-compile #'rng-xsd-compile)
+(put 'https://www\.w3\.org/2001/XMLSchema-datatypes 'rng-dt-compile #'rng-xsd-compile)
 
 (autoload 'rng-xsd-compile "rng-xsd" "\
 Provide W3C XML Schema as a RELAX NG datatypes library.
@@ -33472,7 +33472,7 @@ buffer, and leaves the previous contents of the buffer untouched.
 References used for this implementation:
 
 HTML:
-        URL `http://www.w3.org'
+        URL `https://www.w3.org'
 
 LaTeX:
         URL `http://www.maths.tcd.ie/~dwilkins/LaTeXPrimer/Tables.html'
diff --git a/lisp/leim/quail/ipa.el b/lisp/leim/quail/ipa.el
index d4170564c58..cbc555d1faa 100644
--- a/lisp/leim/quail/ipa.el
+++ b/lisp/leim/quail/ipa.el
@@ -340,7 +340,7 @@ See http://www.phon.ucl.ac.uk/home/sampa/ipasam-x.pdf for a full definition
 of the mapping.")
 
 (quail-define-rules
- ;; Table taken from http://en.wikipedia.org/wiki/X-SAMPA, checked with
+ ;; Table taken from https://en.wikipedia.org/wiki/X-SAMPA, checked with
  ;; http://www.phon.ucl.ac.uk/home/sampa/ipasam-x.pdf
 
  ("d`" "ɖ")    ;; Voiced retroflex plosive             U+0256
diff --git a/lisp/mail/mail-extr.el b/lisp/mail/mail-extr.el
index f1a455dce2d..bd9aef17a87 100644
--- a/lisp/mail/mail-extr.el
+++ b/lisp/mail/mail-extr.el
@@ -1852,8 +1852,8 @@ place.  It affects how `mail-extract-address-components' works."
 ;;
 ;; Source: ISO 3166 Maintenance Agency
 ;; http://www.iso.org/iso/en/prods-services/iso3166ma/02iso-3166-code-lists/list-en1-semic.txt
-;; http://www.iana.org/domain-names.htm
-;; http://www.iana.org/cctld/cctld-whois.htm
+;; https://www.iana.org/domain-names.htm
+;; https://www.iana.org/cctld/cctld-whois.htm
 ;; Latest change: 2007/11/15
 
 (defconst mail-extr-all-top-level-domains
diff --git a/lisp/mail/smtpmail.el b/lisp/mail/smtpmail.el
index 1786608dd67..63c8f14085a 100644
--- a/lisp/mail/smtpmail.el
+++ b/lisp/mail/smtpmail.el
@@ -50,7 +50,7 @@
 
 ;; Modified by Simon Josefsson <jas@pdc.kth.se>, 22/2/99, to support SMTP
 ;; Authentication by the AUTH mechanism.
-;; See http://www.ietf.org/rfc/rfc2554.txt
+;; See https://www.ietf.org/rfc/rfc2554.txt
 
 ;;; Code:
 ;;; Dependencies
diff --git a/lisp/mh-e/mh-e.el b/lisp/mh-e/mh-e.el
index e8a660aab24..3ac5c8f7aed 100644
--- a/lisp/mh-e/mh-e.el
+++ b/lisp/mh-e/mh-e.el
@@ -1914,7 +1914,7 @@ of images into \"X-Face:\" header fields (see URL
 
 Use the \"make-face\" script to convert a JPEG image to the higher
 resolution, color, \"Face:\" header field (see URL
-`http://quimby.gnus.org/circus/face/make-face').
+`https://quimby.gnus.org/circus/face/make-face').
 
 The URL of any image can be used for the \"X-Image-URL:\" field and no
 processing of the image is required.
@@ -2420,11 +2420,11 @@ of citations entirely, choose \"None\"."
 
 ;; These entries have been intentionally excluded by the developers.
 ;;  "Comments:"                         ; RFC 822 (or later) - show this one
-;;  "Fax:"                              ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-;;  "Mail-System-Version:"              ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-;;  "Mailer:"                           ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+;;  "Fax:"                              ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+;;  "Mail-System-Version:"              ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+;;  "Mailer:"                           ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
 ;;  "Organization:"                     ;
-;;  "Phone:"                            ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+;;  "Phone:"                            ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
 ;;  "Reply-By:"                         ; RFC 2156
 ;;  "Reply-To:"                         ; RFC 822 (or later)
 ;;  "Sender:"                           ;
@@ -2437,13 +2437,13 @@ of citations entirely, choose \"None\"."
 ;; Mention source, if known.
 (defvar mh-invisible-header-fields-internal
   '(
-    "Abuse-Reports-To:"                 ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Abuse-Reports-To:"                 ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Accept-Language:"
     "AcceptLanguage:"
     "Accreditor:"                       ; Habeas
     "Also-Control:"                     ; H. Spencer: News Article Format and Transmission, June 1994
     "Alternate-recipient:"              ; RFC 2156
-    "Approved-By:"                      ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Approved-By:"                      ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Approved:"                         ; RFC 1036
     "Article-Names:"                    ; H. Spencer: News Article Format and Transmission, June 1994
     "Article-Updates:"                  ; H. Spencer: News Article Format and Transmission, June 1994
@@ -2454,7 +2454,7 @@ of citations entirely, choose \"None\"."
     "Bounces-To:"
     "Bounces_to:"
     "Bytes:"
-    "Cancel-Key:"                       ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Cancel-Key:"                       ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Cancel-Lock:"                      ; NNTP posts
     "Comment:"                          ; Shows up with DomainKeys
     "Content-"                          ; RFC 2045, 1123, 1766, 1864, 2045, 2110, 2156, 2183, 2912
@@ -2475,14 +2475,14 @@ of citations entirely, choose \"None\"."
     "DomainKey-Signature:"
     "Encoding:"                         ; RFC 1505
     "Envelope-to:"
-    "Errors-To:"                        ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Errors-To:"                        ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Expires:"                          ; RFC 1036
     "Expiry-Date:"                      ; RFC 2156
     "Face:"                             ; Gnus Face header
     "Followup-To:"                      ; RFC 1036
-    "For-Approval:"                     ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "For-Comment:"                      ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "For-Handling:"                     ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "For-Approval:"                     ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "For-Comment:"                      ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "For-Handling:"                     ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Forwarded:"                        ; MH
     "From "                             ; sendmail
     "Generate-Delivery-Report:"         ; RFC 2156
@@ -2493,12 +2493,12 @@ of citations entirely, choose \"None\"."
     "Language:"                         ; RFC 2156
     "Lines:"                            ; RFC 1036
     "List-"                             ; RFC 2369, 2919
-    "Mail-Copies-To:"                   ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "Mail-Followup-To:"                 ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Mail-Copies-To:"                   ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Mail-Followup-To:"                 ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Mail-from:"                        ; MH
-    "Mail-Reply-To:"                    ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Mail-Reply-To:"                    ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Mailing-List:"                     ; Egroups/yahoogroups mailing list manager
-    "Message-Content:"                  ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Message-Content:"                  ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Message-ID:"                       ; RFC 822 (or later)
     "Message-Type:"                     ; RFC 2156
     "Mime-Version"                      ; RFC 2045
@@ -2516,42 +2516,42 @@ of citations entirely, choose \"None\"."
     "Original-Recipient:"               ; RFC 2298
     "Original-To:"                      ; mail to news
     "Original-X-"                       ; mail to news
-    "Origination-Client:"               ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "Originator:"                       ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Origination-Client:"               ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Originator:"                       ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "P1-Content-Type:"                  ; X400
     "P1-Message-Id:"                    ; X400
     "P1-Recipient:"                     ; X400
     "Path:"                             ; RFC 1036
     "Pics-Label:"                       ; W3C
-    "Posted-To:"                        ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "Precedence:"                       ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Posted-To:"                        ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Precedence:"                       ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Prev-Resent"                       ; MH
     "Prevent-NonDelivery-Report:"       ; RFC 2156
     "Priority:"                         ; RFC 2156
-    "Read-Receipt-To:"                  ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Read-Receipt-To:"                  ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Received-SPF:"                     ; Gmail
     "Received:"                         ; RFC 822 (or later)
     "References:"                       ; RFC 822 (or later)
-    "Registered-Mail-Reply-Requested-By:"       ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Registered-Mail-Reply-Requested-By:"       ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Remailed-"                         ; MH
-    "Replaces:"                         ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Replaces:"                         ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Replied:"                          ; MH
     "Resent-"                           ; RFC 822 (or later)
     "Return-Path:"                      ; RFC 822 (or later)
-    "Return-Receipt-Requested:"         ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "Return-Receipt-To:"                ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Return-Receipt-Requested:"         ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Return-Receipt-To:"                ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Seal-Send-Time:"
     "See-Also:"                         ; H. Spencer: News Article Format and Transmission, June 1994
     "Sensitivity:"                      ; RFC 2156, 2421
-    "Speech-Act:"                       ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Speech-Act:"                       ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Status:"                           ; sendmail
     "Supersedes:"                       ; H. Spencer: News Article Format and Transmission, June 1994
-    "Telefax:"                          ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Telefax:"                          ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Thread-"
     "Thread-Index:"
     "Thread-Topic:"
-    "Translated-By:"                    ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "Translation-Of:"                   ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Translated-By:"                    ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "Translation-Of:"                   ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "Ua-Content-Id:"                    ; X400
     "Via:"                              ; MH
     "X-Abuse-and-DMCA-"
@@ -2559,7 +2559,7 @@ of citations entirely, choose \"None\"."
     "X-Accept-Language:"                ; Netscape/Mozilla
     "X-Ack:"
     "X-ACL-Warn:"                       ; http://www.exim.org
-    "X-Admin:"                          ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Admin:"                          ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Administrivia-To:"
     "X-AMAZON"                          ; Amazon.com
     "X-AnalysisOut:"                    ; Exchange
@@ -2594,9 +2594,9 @@ of citations entirely, choose \"None\"."
     "X-CanIt-Geo:"                      ; IEEE spam filter
     "X-Cloudmark-SP-"                   ; Cloudmark (www.cloudmark.com)
     "X-Comment:"                        ; AT&T Mailennium
-    "X-Complaints-To:"                  ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Complaints-To:"                  ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Completed:"
-    "X-Confirm-Reading-To:"             ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Confirm-Reading-To:"             ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Content-Filtered-By:"
     "X-ContentStamp:"                   ; NetZero
     "X-Country-Chain:"                  ; http://www.declude.com/x-note.htm
@@ -2622,13 +2622,13 @@ of citations entirely, choose \"None\"."
     "X-Email-Type-Id:"                  ; Paypal http://www.paypal.com
     "X-Enigmail-Version:"
     "X-Envelope-Date:"                  ; GNU mailutils
-    "X-Envelope-From:"                  ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Envelope-From:"                  ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Envelope-Sender:"
-    "X-Envelope-To:"                    ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Envelope-To:"                    ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-EviteMessageId:"                 ; evite.com
     "X-Evolution:"                      ; Evolution mail client
     "X-ExtLoop"
-    "X-Face:"                           ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Face:"                           ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Facebook"                        ; Facebook
     "X-FB-SS:"
     "X-fmx-"
@@ -2652,7 +2652,7 @@ of citations entirely, choose \"None\"."
     "X-Identity:"                       ; http://www.declude.com/x-note.htm
     "X-IEEE-UCE-"                       ; IEEE spam filter
     "X-Image-URL:"
-    "X-IMAP:"                           ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-IMAP:"                           ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Info:"                           ; NTMail
     "X-IronPort-"                       ; IronPort AV
     "X-ISI-4-30-3-MailScanner:"
@@ -2662,12 +2662,12 @@ of citations entirely, choose \"None\"."
     "X-Juno-"                           ; Juno
     "X-Key:"
     "X-Launchpad-"                      ; plaunchpad.net
-    "X-List-Host:"                      ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-List-Host:"                      ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-List-Subscribe:"                 ; Unknown mailing list managers
     "X-List-Unsubscribe:"               ; Unknown mailing list managers
     "X-Listprocessor-"                  ; ListProc(tm) by CREN
-    "X-Listserver:"                     ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "X-Loop:"                           ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Listserver:"                     ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Loop:"                           ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Lrde-Mailscanner:"
     "X-Lumos-SenderID:"                 ; Roving ConstantContact
     "X-mail_abuse_inquiries:"           ; http://www.salesforce.com
@@ -2693,18 +2693,18 @@ of citations entirely, choose \"None\"."
     "X-MessageWall-Score:"              ; Unknown mailing list manager, AUC TeX
     "X-MHE-Checksum:"                   ; Checksum added during index search
     "X-MIME-Autoconverted:"             ; sendmail
-    "X-MIMEOLE:"                        ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/sendmail
+    "X-MIMEOLE:"                        ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/sendmail
     "X-MIMETrack:"
     "X-Mms-"                            ; T-Mobile pictures
     "X-Mozilla-Status:"                 ; Netscape/Mozilla
     "X-MS-"                             ; MS Outlook
     "X-Msmail-"                         ; MS Outlook
-    "X-MSMail-Priority"                 ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-MSMail-Priority"                 ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-MXL-Hash:"
     "X-NAI-Spam-"                       ; Network Associates Inc. SpamKiller
     "X-News:"                           ; News
-    "X-Newsreader:"                     ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "X-No-Archive:"                     ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Newsreader:"                     ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-No-Archive:"                     ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Notes-Item:"                     ; Lotus Notes Domino structured header
     "X-Notification-"                   ; Google+
     "X-Notifications:"                  ; Google+
@@ -2713,7 +2713,7 @@ of citations entirely, choose \"None\"."
     "X-ORBL:"
     "X-Orcl-Content-Type:"
     "X-Organization:"
-    "X-Original-Arrival-Type:"          ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Original-Arrival-Type:"          ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Original-Complaints-To:"
     "X-Original-Date:"                  ; SourceForge mailing list manager
     "X-Original-To:"
@@ -2733,10 +2733,10 @@ of citations entirely, choose \"None\"."
     "X-Provags-ID:"
     "X-PSTN-"
     "X-Qotd-"                           ; User added
-    "X-RCPT-TO:"                        ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-RCPT-TO:"                        ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Received-Date:"
     "X-Received:"
-    "X-Report-Abuse-To:"                ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Report-Abuse-To:"                ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Request-"
     "X-Resolved-to:"                    ; fastmail.fm
     "X-Return-Path-Hint:"               ; Roving ConstantContact
@@ -2753,7 +2753,7 @@ of citations entirely, choose \"None\"."
     "X-SBRule:"                         ; Spam
     "X-Scanned-By:"
     "X-Sender-ID:"                      ; Google+
-    "X-Sender:"                         ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-Sender:"                         ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Sendergroup:"                    ; Cisco Email Security (formerly IronPort; http://www.ironport.com)
     "X-Server-Date:"
     "X-Server-Uuid:"
@@ -2776,11 +2776,11 @@ of citations entirely, choose \"None\"."
     "X-TM-IMSS-Message-ID:"             ; http://www.trendmicro.com
     "X-Trace:"
     "X-UID"
-    "X-UIDL:"                           ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-UIDL:"                           ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-Unity"
     "X-UNTD-"                           ; NetZero
-    "X-URI:"                            ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
-    "X-URL:"                            ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-URI:"                            ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-URL:"                            ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-USANET-"                         ; usa.net
     "X-Usenet-Provider"
     "X-UserInfo1:"
@@ -2792,7 +2792,7 @@ of citations entirely, choose \"None\"."
     "X-VSMLoop:"                        ; NTMail
     "X-WebTV-Signature:"
     "X-Wss-Id:"                         ; Worldtalk gateways
-    "X-X-Sender:"                       ; http://people.dsv.su.se/~jpalme/ietf/mail-headers/
+    "X-X-Sender:"                       ; https://people.dsv.su.se/~jpalme/ietf/mail-headers/
     "X-XPT-XSL-Name:"                   ; Paypal http://www.paypal.com
     "X-xsi-"
     "X-XWALL-"                          ; http://www.dataenter.co.at/doc/xwall_undocumented_config.htm
@@ -3036,7 +3036,7 @@ supports it.
 The first header field used, if present, is the Gnus-specific
 \"Face:\" field. The \"Face:\" field appeared in GNU Emacs 21 and
 XEmacs. For more information, see URL
-`http://quimby.gnus.org/circus/face/'. Next is the traditional
+`https://quimby.gnus.org/circus/face/'. Next is the traditional
 \"X-Face:\" header field. The display of this field requires the
 \"uncompface\" program (see URL
 `ftp://ftp.cs.indiana.edu/pub/faces/compface/compface.tar.z'). Recent
@@ -3049,7 +3049,7 @@ header field if neither the \"Face:\" nor the \"X-Face:\" fields are
 present. The display of the images requires \"wget\" (see URL
 `https://www.gnu.org/software/wget/wget.html'), \"fetch\", or \"curl\"
 to fetch the image and the \"convert\" program from the ImageMagick
-suite (see URL `http://www.imagemagick.org/'). Of the three header
+suite (see URL `https://www.imagemagick.org/'). Of the three header
 fields this is the most efficient in terms of network usage since the
 image doesn't need to be transmitted with every single mail.
 
diff --git a/lisp/mh-e/mh-thread.el b/lisp/mh-e/mh-thread.el
index fc30187245d..43a589aeca2 100644
--- a/lisp/mh-e/mh-thread.el
+++ b/lisp/mh-e/mh-thread.el
@@ -26,7 +26,7 @@
 
 ;; The threading portion of this files tries to implement the
 ;; algorithm described at:
-;;   http://www.jwz.org/doc/threading.html
+;;   https://www.jwz.org/doc/threading.html
 ;; It also begins to implement the threading section of the IMAP -
 ;; SORT and THREAD Extensions RFC at:
 ;;   http://tools.ietf.org/html/rfc5256
diff --git a/lisp/net/net-utils.el b/lisp/net/net-utils.el
index ef3651b0335..8c7d33a67d4 100644
--- a/lisp/net/net-utils.el
+++ b/lisp/net/net-utils.el
@@ -771,7 +771,7 @@ This command uses `smbclient-program' to connect to HOST."
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
 ;; Full list is available at:
-;; http://www.iana.org/assignments/port-numbers
+;; https://www.iana.org/assignments/port-numbers
 (defvar network-connection-service-alist
   (list
     (cons 'echo          7)
diff --git a/lisp/net/newst-backend.el b/lisp/net/newst-backend.el
index 2c32a2cf2ea..f45abf780f7 100644
--- a/lisp/net/newst-backend.el
+++ b/lisp/net/newst-backend.el
@@ -890,7 +890,7 @@ Argument BUFFER is the buffer of the retrieval process."
                   ;; Atom 1.0 feed.
 
                   ;; (and (eq 'feed (xml-node-name topnode))
-                  ;;      (string= "http://www.w3.org/2005/Atom"
+                  ;;      (string= "https://www.w3.org/2005/Atom"
                   ;;               (xml-get-attribute topnode 'xmlns)))
                   (setq image-url (newsticker--get-logo-url-atom-1.0 topnode))
                   (setq icon-url (newsticker--get-icon-url-atom-1.0 topnode))
diff --git a/lisp/net/newsticker.el b/lisp/net/newsticker.el
index 6329e7660f7..535122a31fb 100644
--- a/lisp/net/newsticker.el
+++ b/lisp/net/newsticker.el
@@ -54,7 +54,7 @@
 ;; as well as the following Atom formats:
 ;;  * Atom 0.3
 ;;  * Atom 1.0
-;;    (see http://www.ietf.org/internet-drafts/draft-ietf-atompub-format-11.txt)
+;;    (see https://www.ietf.org/internet-drafts/draft-ietf-atompub-format-11.txt)
 ;; That makes Newsticker.el an "Atom aggregator, "RSS reader", "RSS
 ;; aggregator", and "Feed Reader".
 
diff --git a/lisp/net/puny.el b/lisp/net/puny.el
index cc406076c58..5c58fe02cbf 100644
--- a/lisp/net/puny.el
+++ b/lisp/net/puny.el
@@ -23,7 +23,7 @@
 ;;; Commentary:
 
 ;; Written by looking at
-;; http://stackoverflow.com/questions/183485/can-anyone-recommend-a-good-free-javascript-for-punycode-to-unicode-conversion
+;; https://stackoverflow.com/questions/183485/can-anyone-recommend-a-good-free-javascript-for-punycode-to-unicode-conversion
 
 ;;; Code:
 
@@ -196,12 +196,12 @@ For instance \"xn--bcher-kva\" => \"bücher\"."
         (cl-incf i)))
     (buffer-string)))
 
-;; http://www.unicode.org/reports/tr39/#Restriction_Level_Detection
-;; http://www.unicode.org/reports/tr31/#Table_Candidate_Characters_for_Inclusion_in_Identifiers
+;; https://www.unicode.org/reports/tr39/#Restriction_Level_Detection
+;; https://www.unicode.org/reports/tr31/#Table_Candidate_Characters_for_Inclusion_in_Identifiers
 
 (defun puny-highly-restrictive-string-p (string)
   "Say whether STRING is \"highly restrictive\" in the Unicode IDNA sense.
-See http://www.unicode.org/reports/tr39/#Restriction_Level_Detection
+See https://www.unicode.org/reports/tr39/#Restriction_Level_Detection
 for details.  The main idea is that if you're mixing
 scripts (like latin and cyrillic), you may confuse the user by
 using homographs."
diff --git a/lisp/net/secrets.el b/lisp/net/secrets.el
index 10d061fba20..dc1b468a118 100644
--- a/lisp/net/secrets.el
+++ b/lisp/net/secrets.el
@@ -23,7 +23,7 @@
 ;;; Commentary:
 
 ;; This package provides an implementation of the Secret Service API
-;; <http://www.freedesktop.org/wiki/Specifications/secret-storage-spec>.
+;; <https://www.freedesktop.org/wiki/Specifications/secret-storage-spec>.
 ;; This API is meant to make GNOME-Keyring- and KWallet-like daemons
 ;; available under a common D-BUS interface and thus increase
 ;; interoperability between GNOME, KDE and other applications having
diff --git a/lisp/net/soap-client.el b/lisp/net/soap-client.el
index f07d214e122..504304f385e 100644
--- a/lisp/net/soap-client.el
+++ b/lisp/net/soap-client.el
@@ -2078,7 +2078,7 @@ This is a specialization of `soap-decode-type' for
   soap-headers                          ; list of (message part use)
   soap-body                             ;  message parts present in the body
   use                                   ; 'literal or 'encoded, see
-                                        ; http://www.w3.org/TR/wsdl#_soap:body
+                                        ; https://www.w3.org/TR/wsdl#_soap:body
   )
 
 (cl-defstruct (soap-binding (:include soap-element))
@@ -2111,7 +2111,7 @@ This is a specialization of `soap-decode-type' for
 
     ;; Add the XSD types to the wsdl document
     (let ((ns (soap-make-xs-basic-types
-               "http://www.w3.org/2001/XMLSchema" "xsd")))
+               "https://www.w3.org/2001/XMLSchema" "xsd")))
       (soap-wsdl-add-namespace ns wsdl)
       (soap-wsdl-add-alias "xsd" (soap-namespace-name ns) wsdl))
 
diff --git a/lisp/net/tramp-sh.el b/lisp/net/tramp-sh.el
index a51edae1482..377f45c1755 100644
--- a/lisp/net/tramp-sh.el
+++ b/lisp/net/tramp-sh.el
@@ -4408,7 +4408,7 @@ process to set up.  VEC specifies the connection."
 
     ;; IRIX64 bash expands "!" even when in single quotes.  This
     ;; destroys our shell functions, we must disable it.  See
-    ;; <http://stackoverflow.com/questions/3291692/irix-bash-shell-expands-expression-in-single-quotes-yet-shouldnt>.
+    ;; <https://stackoverflow.com/questions/3291692/irix-bash-shell-expands-expression-in-single-quotes-yet-shouldnt>.
     (when (string-match-p "^IRIX64" uname)
       (tramp-send-command vec "set +H" t))
 
diff --git a/lisp/obsolete/erc-hecomplete.el b/lisp/obsolete/erc-hecomplete.el
index 8f554282aed..cd26edeaa24 100644
--- a/lisp/obsolete/erc-hecomplete.el
+++ b/lisp/obsolete/erc-hecomplete.el
@@ -4,7 +4,7 @@
 ;; Inc.
 
 ;; Author: Alex Schroeder <alex@gnu.org>
-;; URL: http://www.emacswiki.org/cgi-bin/wiki.pl?ErcCompletion
+;; URL: https://www.emacswiki.org/cgi-bin/wiki.pl?ErcCompletion
 ;; Obsolete-since: 24.1
 
 ;; This file is part of GNU Emacs.
diff --git a/lisp/org/ob-plantuml.el b/lisp/org/ob-plantuml.el
index 5bf9e2beee4..49886e292e5 100644
--- a/lisp/org/ob-plantuml.el
+++ b/lisp/org/ob-plantuml.el
@@ -26,7 +26,7 @@
 ;; Org-Babel support for evaluating plantuml script.
 ;;
 ;; Inspired by Ian Yang's org-export-blocks-format-plantuml
-;; http://www.emacswiki.org/emacs/org-export-blocks-format-plantuml.el
+;; https://www.emacswiki.org/emacs/org-export-blocks-format-plantuml.el
 
 ;;; Requirements:
 
diff --git a/lisp/org/ob-ruby.el b/lisp/org/ob-ruby.el
index 90956271cf5..1b8088eaee4 100644
--- a/lisp/org/ob-ruby.el
+++ b/lisp/org/ob-ruby.el
@@ -30,10 +30,10 @@
 ;; - ruby and irb executables :: http://www.ruby-lang.org/
 ;;
 ;; - ruby-mode :: Can be installed through ELPA, or from
-;;   http://github.com/eschulte/rinari/raw/master/util/ruby-mode.el
+;;   https://github.com/eschulte/rinari/raw/master/util/ruby-mode.el
 ;;
 ;; - inf-ruby mode :: Can be installed through ELPA, or from
-;;   http://github.com/eschulte/rinari/raw/master/util/inf-ruby.el
+;;   https://github.com/eschulte/rinari/raw/master/util/inf-ruby.el
 
 ;;; Code:
 (require 'ob)
diff --git a/lisp/org/ob-sass.el b/lisp/org/ob-sass.el
index 60c081dcb38..c101574696c 100644
--- a/lisp/org/ob-sass.el
+++ b/lisp/org/ob-sass.el
@@ -35,7 +35,7 @@
 
 ;;; Requirements:
 
-;; - sass-mode :: http://github.com/nex3/haml/blob/master/extra/sass-mode.el
+;; - sass-mode :: https://github.com/nex3/haml/blob/master/extra/sass-mode.el
 
 ;;; Code:
 (require 'ob)
diff --git a/lisp/org/ob-stan.el b/lisp/org/ob-stan.el
index c563a6c3e55..678047c8008 100644
--- a/lisp/org/ob-stan.el
+++ b/lisp/org/ob-stan.el
@@ -41,7 +41,7 @@
 ;; For more information and usage examples, visit
 ;; https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-stan.html
 ;;
-;; [1] http://mc-stan.org/
+;; [1] https://mc-stan.org/
 
 ;;; Code:
 (require 'ob)
diff --git a/lisp/org/org-table.el b/lisp/org/org-table.el
index abba29952e6..5c37cb1af52 100644
--- a/lisp/org/org-table.el
+++ b/lisp/org/org-table.el
@@ -6122,7 +6122,7 @@ which will prompt for the width."
 ;; Here are two examples of different styles.
 
 ;; Unicode block characters are used to give a smooth effect.
-;; See http://en.wikipedia.org/wiki/Block_Elements
+;; See https://en.wikipedia.org/wiki/Block_Elements
 ;; Use one of those drawing functions
 ;; - orgtbl-ascii-draw   (the default ascii)
 ;; - orgtbl-uc-draw-grid (unicode with a grid effect)
@@ -6136,7 +6136,7 @@ which will prompt for the width."
 It is a variant of orgtbl-ascii-draw with Unicode block
 characters, for a smooth display.  Bars appear as grids (to the
 extent the font allows)."
-  ;; http://en.wikipedia.org/wiki/Block_Elements
+  ;; https://en.wikipedia.org/wiki/Block_Elements
   ;; best viewed with the "DejaVu Sans Mono" font.
   (orgtbl-ascii-draw value min max width
                      " \u258F\u258E\u258D\u258C\u258B\u258A\u2589"))
diff --git a/lisp/org/ox.el b/lisp/org/ox.el
index 797efb90b79..2f8fd0c645b 100644
--- a/lisp/org/ox.el
+++ b/lisp/org/ox.el
@@ -5459,7 +5459,7 @@ transcoding it."
      (apostrophe :utf-8 "’" :html "&rsquo;"))
     ("da"
      ;; one may use: »...«, "...", ›...‹, or '...'.
-     ;; http://sproget.dk/raad-og-regler/retskrivningsregler/retskrivningsregler/a7-40-60/a7-58-anforselstegn/
+     ;; https://sproget.dk/raad-og-regler/retskrivningsregler/retskrivningsregler/a7-40-60/a7-58-anforselstegn/
      ;; LaTeX quotes require Babel!
      (primary-opening
       :utf-8 "»" :html "&raquo;" :latex ">>" :texinfo "@guillemetright{}")
@@ -5553,7 +5553,7 @@ transcoding it."
      (secondary-closing :utf-8 "’" :html "&rsquo;" :latex "'" :texinfo "'")
      (apostrophe :utf-8 "’" :html "&rsquo;"))
     ("ru"
-     ;; http://ru.wikipedia.org/wiki/%D0%9A%D0%B0%D0%B2%D1%8B%D1%87%D0%BA%D0%B8#.D0.9A.D0.B0.D0.B2.D1.8B.D1.87.D0.BA.D0.B8.2C_.D0.B8.D1.81.D0.BF.D0.BE.D0.BB.D1.8C.D0.B7.D1.83.D0.B5.D0.BC.D1.8B.D0.B5_.D0.B2_.D1.80.D1.83.D1.81.D1.81.D0.BA.D0.BE.D0.BC_.D1.8F.D0.B7.D1.8B.D0.BA.D0.B5
+     ;; https://ru.wikipedia.org/wiki/%D0%9A%D0%B0%D0%B2%D1%8B%D1%87%D0%BA%D0%B8#.D0.9A.D0.B0.D0.B2.D1.8B.D1.87.D0.BA.D0.B8.2C_.D0.B8.D1.81.D0.BF.D0.BE.D0.BB.D1.8C.D0.B7.D1.83.D0.B5.D0.BC.D1.8B.D0.B5_.D0.B2_.D1.80.D1.83.D1.81.D1.81.D0.BA.D0.BE.D0.BC_.D1.8F.D0.B7.D1.8B.D0.BA.D0.B5
      ;; http://www.artlebedev.ru/kovodstvo/sections/104/
      (primary-opening :utf-8 "«" :html "&laquo;" :latex "{}<<"
                       :texinfo "@guillemetleft{}")
diff --git a/lisp/pcmpl-unix.el b/lisp/pcmpl-unix.el
index 9d346cfbd22..13de4b65e5b 100644
--- a/lisp/pcmpl-unix.el
+++ b/lisp/pcmpl-unix.el
@@ -148,7 +148,7 @@ documentation), this function returns nil."
 
 
 ;; ssh support by Phil Hagelberg.
-;; http://www.emacswiki.org/cgi-bin/wiki/pcmpl-ssh.el
+;; https://www.emacswiki.org/cgi-bin/wiki/pcmpl-ssh.el
 
 (defun pcmpl-ssh-known-hosts ()
   "Return a list of hosts found in `pcmpl-ssh-known-hosts-file'."
diff --git a/lisp/play/bubbles.el b/lisp/play/bubbles.el
index 903c0686063..d512a718b48 100644
--- a/lisp/play/bubbles.el
+++ b/lisp/play/bubbles.el
@@ -28,7 +28,7 @@
 ;; possible in as few moves as possible.
 
 ;; Bubbles is an implementation of the "Same Game", similar to "Same
-;; GNOME" and many others, see <http://en.wikipedia.org/wiki/SameGame>.
+;; GNOME" and many others, see <https://en.wikipedia.org/wiki/SameGame>.
 
 ;; Installation
 ;; ------------
diff --git a/lisp/printing.el b/lisp/printing.el
index 86a2434c0da..ec67a144c3c 100644
--- a/lisp/printing.el
+++ b/lisp/printing.el
@@ -5,7 +5,7 @@
 ;; Author: Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
 ;; Keywords: wp, print, PostScript
 ;; Version: 6.9.3
-;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
+;; X-URL: https://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
 
 (defconst pr-version "6.9.3"
   "printing.el, v 6.9.3 <2007/12/09 vinicius>
@@ -64,7 +64,7 @@ Please send all bug fixes and enhancements to
 ;; interface to ps-print package and it also provides some extra stuff.
 ;;
 ;; To download the latest ps-print package see
-;; `http://www.emacswiki.org/cgi-bin/wiki/PsPrintPackage'.
+;; `https://www.emacswiki.org/cgi-bin/wiki/PsPrintPackage'.
 ;; Please, see README file for ps-print installation instructions.
 ;;
 ;; `printing' was inspired by:
@@ -944,8 +944,8 @@ Please send all bug fixes and enhancements to
 ;;
 ;; * For `printing' package:
 ;;
-;;    printing  `http://www.emacswiki.org/cgi-bin/emacs/download/printing.el'
-;;    ps-print  `http://www.emacswiki.org/cgi-bin/wiki/PsPrintPackage'
+;;    printing  `https://www.emacswiki.org/cgi-bin/emacs/download/printing.el'
+;;    ps-print  `https://www.emacswiki.org/cgi-bin/wiki/PsPrintPackage'
 ;;
 ;; * For GNU or Unix system:
 ;;
diff --git a/lisp/progmodes/bat-mode.el b/lisp/progmodes/bat-mode.el
index 87e88163ac7..98e58be2303 100644
--- a/lisp/progmodes/bat-mode.el
+++ b/lisp/progmodes/bat-mode.el
@@ -42,7 +42,7 @@
 ;; See documentation of function `bat-mode'.
 ;;
 ;; Separate package `dos-indent' (Matthew Fidler) provides rudimentary
-;; indentation, see http://www.emacswiki.org/emacs/dos-indent.el.
+;; indentation, see https://www.emacswiki.org/emacs/dos-indent.el.
 ;;
 ;; Acknowledgements:
 ;;
diff --git a/lisp/progmodes/cperl-mode.el b/lisp/progmodes/cperl-mode.el
index c62fbab0595..2e4b9d4693c 100644
--- a/lisp/progmodes/cperl-mode.el
+++ b/lisp/progmodes/cperl-mode.el
@@ -33,7 +33,7 @@
 ;; support.
 
 ;; The latest version is available from
-;; http://github.com/jrockway/cperl-mode
+;; https://github.com/jrockway/cperl-mode
 ;;
 ;; (perhaps in the moosex-declare branch)
 
diff --git a/lisp/progmodes/ebnf-abn.el b/lisp/progmodes/ebnf-abn.el
index bf9b0e961ba..be82c72910b 100644
--- a/lisp/progmodes/ebnf-abn.el
+++ b/lisp/progmodes/ebnf-abn.el
@@ -38,7 +38,7 @@
 ;; -----------
 ;;
 ;;      See the URL:
-;;      `http://www.ietf.org/rfc/rfc2234.txt'
+;;      `https://www.ietf.org/rfc/rfc2234.txt'
 ;;      or
 ;;      `http://www.faqs.org/rfcs/rfc2234.html'
 ;;      or
diff --git a/lisp/progmodes/ebnf-dtd.el b/lisp/progmodes/ebnf-dtd.el
index bdebf0db2c1..ddddb27a11c 100644
--- a/lisp/progmodes/ebnf-dtd.el
+++ b/lisp/progmodes/ebnf-dtd.el
@@ -38,11 +38,11 @@
 ;; ----------
 ;;
 ;;      See the URLs:
-;;      `http://www.w3.org/TR/2004/REC-xml-20040204/'
+;;      `https://www.w3.org/TR/2004/REC-xml-20040204/'
 ;;      (Extensible Markup Language (XML) 1.0 (Third Edition))
-;;      `http://www.w3.org/TR/html40/'
+;;      `https://www.w3.org/TR/html40/'
 ;;      (HTML 4.01 Specification)
-;;      `http://www.w3.org/TR/NOTE-html-970421'
+;;      `https://www.w3.org/TR/NOTE-html-970421'
 ;;      (HTML DTD with support for Style Sheets)
 ;;
 ;;
diff --git a/lisp/progmodes/ebnf-ebx.el b/lisp/progmodes/ebnf-ebx.el
index 20e2d4ca31c..546f1f8a87f 100644
--- a/lisp/progmodes/ebnf-ebx.el
+++ b/lisp/progmodes/ebnf-ebx.el
@@ -38,7 +38,7 @@
 ;; ------------
 ;;
 ;;      See the URL:
-;;      `http://www.w3.org/TR/2004/REC-xml-20040204/#sec-notation'
+;;      `https://www.w3.org/TR/2004/REC-xml-20040204/#sec-notation'
 ;;      (Extensible Markup Language (XML) 1.0 (Third Edition))
 ;;
 ;;
diff --git a/lisp/progmodes/ebnf2ps.el b/lisp/progmodes/ebnf2ps.el
index 22c70bf734d..991cd6fc519 100644
--- a/lisp/progmodes/ebnf2ps.el
+++ b/lisp/progmodes/ebnf2ps.el
@@ -5,7 +5,7 @@
 ;; Author: Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
 ;; Keywords: wp, ebnf, PostScript
 ;; Version: 4.4
-;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
+;; X-URL: https://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
 
 ;; This file is part of GNU Emacs.
 
@@ -326,7 +326,7 @@ Please send all bug fixes and enhancements to
 ;;                      `ebnf-lex-comment-char' and `ebnf-lex-eop-char'.
 ;;
 ;;    `abnf'            ebnf2ps recognizes the syntax described in the URL:
-;;                      `http://www.ietf.org/rfc/rfc2234.txt'
+;;                      `https://www.ietf.org/rfc/rfc2234.txt'
 ;;                      ("Augmented BNF for Syntax Specifications: ABNF").
 ;;
 ;;    `iso-ebnf'        ebnf2ps recognizes the syntax described in the URL:
@@ -342,11 +342,11 @@ Please send all bug fixes and enhancements to
 ;;                      `ebnf-yac-ignore-error-recovery'.
 ;;
 ;;    `ebnfx'           ebnf2ps recognizes the syntax described in the URL:
-;;                   `http://www.w3.org/TR/2004/REC-xml-20040204/#sec-notation'
+;;                   `https://www.w3.org/TR/2004/REC-xml-20040204/#sec-notation'
 ;;                   ("Extensible Markup Language (XML) 1.0 (Third Edition)")
 ;;
 ;;    `dtd'             ebnf2ps recognizes the syntax described in the URL:
-;;                      `http://www.w3.org/TR/2004/REC-xml-20040204/'
+;;                      `https://www.w3.org/TR/2004/REC-xml-20040204/'
 ;;                   ("Extensible Markup Language (XML) 1.0 (Third Edition)")
 ;;
 ;; Any other value is treated as `ebnf'.
@@ -1779,7 +1779,7 @@ Valid values are:
                 `ebnf-lex-comment-char' and `ebnf-lex-eop-char'.
 
    `abnf'       ebnf2ps recognizes the syntax described in the URL:
-                `http://www.ietf.org/rfc/rfc2234.txt'
+                `https://www.ietf.org/rfc/rfc2234.txt'
                 (\"Augmented BNF for Syntax Specifications: ABNF\").
 
    `iso-ebnf'   ebnf2ps recognizes the syntax described in the URL:
@@ -1795,11 +1795,11 @@ Valid values are:
                 `ebnf-yac-ignore-error-recovery'.
 
    `ebnfx'      ebnf2ps recognizes the syntax described in the URL:
-                `http://www.w3.org/TR/2004/REC-xml-20040204/#sec-notation'
+                `https://www.w3.org/TR/2004/REC-xml-20040204/#sec-notation'
                 (\"Extensible Markup Language (XML) 1.0 (Third Edition)\")
 
    `dtd'        ebnf2ps recognizes the syntax described in the URL:
-                `http://www.w3.org/TR/2004/REC-xml-20040204/'
+                `https://www.w3.org/TR/2004/REC-xml-20040204/'
                 (\"Extensible Markup Language (XML) 1.0 (Third Edition)\")
 
 Any other value is treated as `ebnf'."
diff --git a/lisp/progmodes/flymake-proc.el b/lisp/progmodes/flymake-proc.el
index 62f6d1aaea2..152dc725c74 100644
--- a/lisp/progmodes/flymake-proc.el
+++ b/lisp/progmodes/flymake-proc.el
@@ -37,7 +37,7 @@
 ;;; Bugs/todo:
 
 ;; - Only uses "Makefile", not "makefile" or "GNUmakefile"
-;;   (from http://bugs.debian.org/337339).
+;;   (from https://bugs.debian.org/337339).
 
 ;;; Code:
 
diff --git a/lisp/progmodes/gdb-mi.el b/lisp/progmodes/gdb-mi.el
index 086f0b6a085..79df97080df 100644
--- a/lisp/progmodes/gdb-mi.el
+++ b/lisp/progmodes/gdb-mi.el
@@ -8,7 +8,7 @@
 
 ;; This file is part of GNU Emacs.
 
-;; Homepage: http://www.emacswiki.org/emacs/GDB-MI
+;; Homepage: https://www.emacswiki.org/emacs/GDB-MI
 
 ;; GNU Emacs is free software: you can redistribute it and/or modify
 ;; it under the terms of the GNU General Public License as published by
diff --git a/lisp/progmodes/gud.el b/lisp/progmodes/gud.el
index 84c473ddb7e..81021bc64f4 100644
--- a/lisp/progmodes/gud.el
+++ b/lisp/progmodes/gud.el
@@ -1845,7 +1845,7 @@ and source-file directory for your debugger."
 ;; JDB command will get out of the debugger.  There is some truly
 ;; pathetic JDB documentation available at:
 ;;
-;;     http://java.sun.com/products/jdk/1.1/debugging/
+;;     https://java.sun.com/products/jdk/1.1/debugging/
 ;;
 ;; KNOWN PROBLEMS AND FIXME's:
 ;;
diff --git a/lisp/progmodes/idlw-complete-structtag.el b/lisp/progmodes/idlw-complete-structtag.el
index b0542a99da8..3bc3971f5ee 100644
--- a/lisp/progmodes/idlw-complete-structtag.el
+++ b/lisp/progmodes/idlw-complete-structtag.el
@@ -49,7 +49,7 @@
 ;;
 ;; New versions of IDLWAVE, documentation, and more information available
 ;; from:
-;;                 http://github.com/jdtsmith/idlwave
+;;                 https://github.com/jdtsmith/idlwave
 ;;
 ;; INSTALLATION
 ;; ============
diff --git a/lisp/progmodes/idlw-help.el b/lisp/progmodes/idlw-help.el
index ec4fd58886a..2d4ea465c42 100644
--- a/lisp/progmodes/idlw-help.el
+++ b/lisp/progmodes/idlw-help.el
@@ -32,7 +32,7 @@
 ;; along with new versions of IDLWAVE, documentation, and more
 ;; information, at:
 ;;
-;;           http://github.com/jdtsmith/idlwave
+;;           https://github.com/jdtsmith/idlwave
 ;;
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
diff --git a/lisp/progmodes/idlw-shell.el b/lisp/progmodes/idlw-shell.el
index 99ac0877c8b..38127fccbc3 100644
--- a/lisp/progmodes/idlw-shell.el
+++ b/lisp/progmodes/idlw-shell.el
@@ -40,7 +40,7 @@
 ;;
 ;; New versions of IDLWAVE, documentation, and more information
 ;; available from:
-;;                 http://github.com/jdtsmith/idlwave
+;;                 https://github.com/jdtsmith/idlwave
 ;;
 ;; INSTALLATION:
 ;; =============
@@ -58,7 +58,7 @@
 ;;   The newest version of this file can be found on the maintainers
 ;;   web site.
 ;;
-;;     http://github.com/jdtsmith/idlwave
+;;     https://github.com/jdtsmith/idlwave
 ;;
 ;; DOCUMENTATION
 ;; =============
@@ -896,7 +896,7 @@ IDL has currently stepped.")
    Info documentation for this package is available.  Use \\[idlwave-info]
    to display (complain to your sysadmin if that does not work).
    For PostScript and HTML versions of the documentation, check IDLWAVE's
-   homepage at URL `http://github.com/jdtsmith/idlwave'.
+   homepage at URL `https://github.com/jdtsmith/idlwave'.
    IDLWAVE has customize support - see the group `idlwave'.
 
 8. Keybindings
diff --git a/lisp/progmodes/idlw-toolbar.el b/lisp/progmodes/idlw-toolbar.el
index 23c129c1afc..1866e50d680 100644
--- a/lisp/progmodes/idlw-toolbar.el
+++ b/lisp/progmodes/idlw-toolbar.el
@@ -29,7 +29,7 @@
 
 ;; New versions of IDLWAVE, documentation, and more information
 ;; available from:
-;;                 http://github.com/jdtsmith/idlwave
+;;                 https://github.com/jdtsmith/idlwave
 
 
 ;;; Code:
diff --git a/lisp/progmodes/idlwave.el b/lisp/progmodes/idlwave.el
index 121f5d63044..86f9f336723 100644
--- a/lisp/progmodes/idlwave.el
+++ b/lisp/progmodes/idlwave.el
@@ -44,7 +44,7 @@
 ;;
 ;; New versions of IDLWAVE, documentation, and more information
 ;; available from:
-;;                 http://github.com/jdtsmith/idlwave
+;;                 https://github.com/jdtsmith/idlwave
 ;;
 ;; INSTALLATION
 ;; ============
@@ -64,7 +64,7 @@
 ;; The newest version of this file is available from the maintainer's
 ;; Webpage:
 ;;
-;;   http://github.com/jdtsmith/idlwave
+;;   https://github.com/jdtsmith/idlwave
 ;;
 ;; DOCUMENTATION
 ;; =============
@@ -164,7 +164,7 @@
   "Major mode for editing IDL .pro files."
   :tag "IDLWAVE"
   :link '(url-link :tag "Home Page"
-                   "http://github.com/jdtsmith/idlwave")
+                   "https://github.com/jdtsmith/idlwave")
   :link '(emacs-commentary-link :tag "Commentary in idlw-shell.el"
                                 "idlw-shell.el")
   :link '(emacs-commentary-link :tag "Commentary in idlwave.el" "idlwave.el")
@@ -1846,7 +1846,7 @@ The main features of this mode are
    \\[idlwave-info] to display (complain to your sysadmin if that does
    not work).  For Postscript, PDF, and HTML versions of the
    documentation, check IDLWAVE's homepage at URL
-   `http://github.com/jdtsmith/idlwave'.
+   `https://github.com/jdtsmith/idlwave'.
    IDLWAVE has customize support - see the group `idlwave'.
 
 10.Keybindings
diff --git a/lisp/progmodes/ruby-mode.el b/lisp/progmodes/ruby-mode.el
index a11634bc9f0..14f00597bfc 100644
--- a/lisp/progmodes/ruby-mode.el
+++ b/lisp/progmodes/ruby-mode.el
@@ -4,7 +4,7 @@
 
 ;; Authors: Yukihiro Matsumoto
 ;;      Nobuyoshi Nakada
-;; URL: http://www.emacswiki.org/cgi-bin/wiki/RubyMode
+;; URL: https://www.emacswiki.org/cgi-bin/wiki/RubyMode
 ;; Created: Fri Feb  4 14:49:13 JST 1994
 ;; Keywords: languages ruby
 ;; Version: 1.2
diff --git a/lisp/ps-def.el b/lisp/ps-def.el
index 65e8011f771..571e1a68c5e 100644
--- a/lisp/ps-def.el
+++ b/lisp/ps-def.el
@@ -5,7 +5,7 @@
 ;; Author: Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
 ;;      Kenichi Handa <handa@gnu.org> (multi-byte characters)
 ;; Keywords: wp, print, PostScript
-;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
+;; X-URL: https://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
 ;; Package: ps-print
 
 ;; This file is part of GNU Emacs.
diff --git a/lisp/ps-print.el b/lisp/ps-print.el
index 67ee4d24390..26029a16d7c 100644
--- a/lisp/ps-print.el
+++ b/lisp/ps-print.el
@@ -9,7 +9,7 @@
 ;; Maintainer: Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
 ;; Keywords: wp, print, PostScript
 ;; Version: 7.3.5
-;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
+;; X-URL: https://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
 
 (eval-when-compile (require 'cl-lib))
 
diff --git a/lisp/ps-samp.el b/lisp/ps-samp.el
index 7c688d53fa9..9489f4f9118 100644
--- a/lisp/ps-samp.el
+++ b/lisp/ps-samp.el
@@ -8,7 +8,7 @@
 ;;      Kenichi Handa <handa@gnu.org> (multi-byte characters)
 ;; Maintainer: Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
 ;; Keywords: wp, print, PostScript
-;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
+;; X-URL: https://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
 ;; Package: ps-print
 
 ;; This file is part of GNU Emacs.
diff --git a/lisp/subr.el b/lisp/subr.el
index 2dc23a479ec..23e4dcfa7ed 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -3251,7 +3251,7 @@ See Info node `(elisp)Security Considerations'."
 
     ;; First, quote argument so that CommandLineToArgvW will
     ;; understand it.  See
-    ;; http://msdn.microsoft.com/en-us/library/17w5ykft%28v=vs.85%29.aspx
+    ;; https://msdn.microsoft.com/en-us/library/17w5ykft%28v=vs.85%29.aspx
     ;; After we perform that level of quoting, escape shell
     ;; metacharacters so that cmd won't mangle our argument.  If the
     ;; argument contains no double quote characters, we can just
diff --git a/lisp/tempo.el b/lisp/tempo.el
index c2280dedc88..a720ff79016 100644
--- a/lisp/tempo.el
+++ b/lisp/tempo.el
@@ -75,7 +75,7 @@
 ;; ftp.lysator.liu.se in the directory /pub/emacs
 
 ;; There is also a WWW page at
-;; http://www.lysator.liu.se/~davidk/elisp/ which has some information
+;; https://www.lysator.liu.se/~davidk/elisp/ which has some information
 
 ;;; Known bugs:
 
diff --git a/lisp/term/internal.el b/lisp/term/internal.el
index 5e22c0f6afe..c54481a5327 100644
--- a/lisp/term/internal.el
+++ b/lisp/term/internal.el
@@ -400,9 +400,9 @@ If TABLE is nil or omitted, `standard-display-table' is used."
 ;; The following alist was compiled from:
 ;;
 ;; Ralf Brown's Interrupt List. file INTERRUP.F, D-2138, Table 01400
-;; http://www.ethnologue.com/country_index.asp (official languages)
-;; http://unicode.org/onlinedat/languages.html
-;; http://unicode.org/onlinedat/countries.html
+;; https://www.ethnologue.com/country_index.asp (official languages)
+;; https://unicode.org/onlinedat/languages.html
+;; https://unicode.org/onlinedat/countries.html
 ;;
 ;; Only the official languages listed for each country.
 ;;
diff --git a/lisp/textmodes/css-mode.el b/lisp/textmodes/css-mode.el
index 03edd4703ea..0d1eeed5611 100644
--- a/lisp/textmodes/css-mode.el
+++ b/lisp/textmodes/css-mode.el
@@ -100,7 +100,7 @@
   "Identifiers for types of media.")
 
 (defconst css-property-alist
-  ;; CSS 2.1 properties (http://www.w3.org/TR/CSS21/propidx.html).
+  ;; CSS 2.1 properties (https://www.w3.org/TR/CSS21/propidx.html).
   ;;
   ;; Properties duplicated by any of the CSS3 modules below have been
   ;; removed.
@@ -190,7 +190,7 @@
     ("z-index" "auto" integer)
 
     ;; CSS Animations
-    ;; (http://www.w3.org/TR/css3-animations/#property-index)
+    ;; (https://www.w3.org/TR/css3-animations/#property-index)
     ("animation" single-animation-name time single-timing-function
      single-animation-iteration-count single-animation-direction
      single-animation-fill-mode single-animation-play-state)
@@ -204,7 +204,7 @@
     ("animation-timing-function" single-timing-function)
 
     ;; CSS Backgrounds and Borders Module Level 3
-    ;; (http://www.w3.org/TR/css3-background/#property-index)
+    ;; (https://www.w3.org/TR/css3-background/#property-index)
     ("background" bg-layer final-bg-layer)
     ("background-attachment" attachment)
     ("background-clip" box)
@@ -249,7 +249,7 @@
     ("box-shadow" "none" shadow)
 
     ;; CSS Basic User Interface Module Level 3 (CSS3 UI)
-    ;; (http://www.w3.org/TR/css3-ui/#property-index)
+    ;; (https://www.w3.org/TR/css3-ui/#property-index)
     ("box-sizing" "content-box" "border-box")
     ("caret-color" "auto" color)
     ("cursor" uri x y "auto" "default" "none" "context-menu" "help"
@@ -272,7 +272,7 @@
     ("text-overflow" "clip" "ellipsis" string)
 
     ;; CSS Color Module Level 3
-    ;; (http://www.w3.org/TR/css3-color/#property)
+    ;; (https://www.w3.org/TR/css3-color/#property)
     ("color" color)
     ("opacity" alphavalue)
 
@@ -304,7 +304,7 @@
     ("grid-template-rows" "none" track-list auto-track-list)
 
     ;; CSS Flexible Box Layout Module Level 1
-    ;; (http://www.w3.org/TR/css-flexbox-1/#property-index)
+    ;; (https://www.w3.org/TR/css-flexbox-1/#property-index)
     ("align-content" "flex-start" "flex-end" "center" "space-between"
      "space-around" "stretch")
     ("align-items" "flex-start" "flex-end" "center" "baseline"
@@ -323,7 +323,7 @@
     ("order" integer)
 
     ;; CSS Fonts Module Level 3
-    ;; (http://www.w3.org/TR/css3-fonts/#property-index)
+    ;; (https://www.w3.org/TR/css3-fonts/#property-index)
     ("font" font-style font-variant-css21 font-weight font-stretch
      font-size line-height font-family "caption" "icon" "menu"
      "message-box" "small-caption" "status-bar")
@@ -419,7 +419,7 @@
     ("columns" column-width column-count)
 
     ;; CSS Overflow Module Level 3
-    ;; (http://www.w3.org/TR/css-overflow-3/#property-index)
+    ;; (https://www.w3.org/TR/css-overflow-3/#property-index)
     ("max-lines" "none" integer)
     ("overflow" "visible" "hidden" "scroll" "auto" "paged-x" "paged-y"
      "paged-x-controls" "paged-y-controls" "fragments")
@@ -448,7 +448,7 @@
     ("text-underline-position" "auto" "under" "left" "right")
 
     ;; CSS Text Module Level 3
-    ;; (http://www.w3.org/TR/css3-text/#property-index)
+    ;; (https://www.w3.org/TR/css3-text/#property-index)
     ("hanging-punctuation" "none" "first" "force-end" "allow-end"
      "last")
     ("hyphens" "none" "manual" "auto")
@@ -470,7 +470,7 @@
     ("word-wrap" "normal" "break-word")
 
     ;; CSS Transforms Module Level 1
-    ;; (http://www.w3.org/TR/css3-2d-transforms/#property-index)
+    ;; (https://www.w3.org/TR/css3-2d-transforms/#property-index)
     ("backface-visibility" "visible" "hidden")
     ("perspective" "none" length)
     ("perspective-origin" "left" "center" "right" "top" "bottom"
@@ -481,7 +481,7 @@
     ("transform-style" "flat" "preserve-3d")
 
     ;; CSS Transitions
-    ;; (http://www.w3.org/TR/css3-transitions/#property-index)
+    ;; (https://www.w3.org/TR/css3-transitions/#property-index)
     ("transition" single-transition)
     ("transition-delay" time)
     ("transition-duration" time)
@@ -503,7 +503,7 @@
     ("writing-mode" "horizontal-tb" "vertical-rl" "vertical-lr")
 
     ;; Filter Effects Module Level 1
-    ;; (http://www.w3.org/TR/filter-effects/#property-index)
+    ;; (https://www.w3.org/TR/filter-effects/#property-index)
     ("color-interpolation-filters" "auto" "sRGB" "linearRGB")
     ("filter" "none" filter-function-list)
     ("flood-color" color)
diff --git a/lisp/textmodes/table.el b/lisp/textmodes/table.el
index 936edf17ac1..25aa58046f4 100644
--- a/lisp/textmodes/table.el
+++ b/lisp/textmodes/table.el
@@ -2929,7 +2929,7 @@ buffer, and leaves the previous contents of the buffer untouched.
 References used for this implementation:
 
 HTML:
-        URL `http://www.w3.org'
+        URL `https://www.w3.org'
 
 LaTeX:
         URL `http://www.maths.tcd.ie/~dwilkins/LaTeXPrimer/Tables.html'
diff --git a/lisp/thingatpt.el b/lisp/thingatpt.el
index 3c2d766ffb1..558a3fd7368 100644
--- a/lisp/thingatpt.el
+++ b/lisp/thingatpt.el
@@ -278,7 +278,7 @@ If nil, construct the regexp from `thing-at-point-uri-schemes'.")
   "Regexp matching a URI without a scheme component.")
 
 (defvar thing-at-point-uri-schemes
-  ;; Officials from http://www.iana.org/assignments/uri-schemes.html
+  ;; Officials from https://www.iana.org/assignments/uri-schemes.html
   '("aaa://" "about:" "acap://" "apt:" "bzr://" "bzr+ssh://"
     "attachment:/" "chrome://" "cid:" "content://" "crid://" "cvs://"
     "data:" "dav:" "dict://" "doi:" "dns:" "dtn:" "feed:" "file:/"
diff --git a/lisp/thumbs.el b/lisp/thumbs.el
index dd259ec1ff6..3aa7ff0836b 100644
--- a/lisp/thumbs.el
+++ b/lisp/thumbs.el
@@ -30,7 +30,7 @@
 ;; your images, use image-dired.el
 ;;
 ;; The 'convert' program from 'ImageMagick'
-;; [URL:http://www.imagemagick.org/] is required.
+;; [URL:https://www.imagemagick.org/] is required.
 ;;
 ;; Thanks: Alex Schroeder <alex@gnu.org> for maintaining the package at some
 ;;         time.  The peoples at #emacs@freenode.net for numerous help.  RMS
diff --git a/lisp/url/url-auth.el b/lisp/url/url-auth.el
index f2044617b94..8f39b5ae010 100644
--- a/lisp/url/url-auth.el
+++ b/lisp/url/url-auth.el
@@ -39,7 +39,7 @@
 ;;; ------------------------
 ;;; This implements the BASIC authorization type.  See the online
 ;;; documentation at
-;;; http://www.w3.org/hypertext/WWW/AccessAuthorization/Basic.html
+;;; https://www.w3.org/hypertext/WWW/AccessAuthorization/Basic.html
 ;;; for the complete documentation on this type.
 ;;;
 ;;; This is very insecure, but it works as a proof-of-concept
diff --git a/lisp/url/url-irc.el b/lisp/url/url-irc.el
index 03a3b37f398..9647df1c13c 100644
--- a/lisp/url/url-irc.el
+++ b/lisp/url/url-irc.el
@@ -22,7 +22,7 @@
 ;;; Commentary:
 
 ;; IRC URLs are defined in
-;; http://www.w3.org/Addressing/draft-mirashi-url-irc-01.txt
+;; https://www.w3.org/Addressing/draft-mirashi-url-irc-01.txt
 
 ;;; Code:
 
diff --git a/lisp/url/url.el b/lisp/url/url.el
index 321e79c019f..33a5ebcdccc 100644
--- a/lisp/url/url.el
+++ b/lisp/url/url.el
@@ -24,7 +24,7 @@
 
 ;;; Commentary:
 
-;; Registered URI schemes: http://www.iana.org/assignments/uri-schemes
+;; Registered URI schemes: https://www.iana.org/assignments/uri-schemes
 
 ;;; Code:
 
diff --git a/lisp/whitespace.el b/lisp/whitespace.el
index 2e05d93bf59..669057811a5 100644
--- a/lisp/whitespace.el
+++ b/lisp/whitespace.el
@@ -5,7 +5,7 @@
 ;; Author: Vinicius Jose Latorre <viniciusjl.gnu@gmail.com>
 ;; Keywords: data, wp
 ;; Version: 13.2.2
-;; X-URL: http://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
+;; X-URL: https://www.emacswiki.org/cgi-bin/wiki/ViniciusJoseLatorre
 
 ;; This file is part of GNU Emacs.
 
diff --git a/lisp/xml.el b/lisp/xml.el
index 236d9cbe6c0..c96ff80446a 100644
--- a/lisp/xml.el
+++ b/lisp/xml.el
@@ -655,7 +655,7 @@ Leave point at the first non-blank character after the tag."
       (setq name (xml-maybe-do-ns (match-string-no-properties 1) nil xml-ns))
       (goto-char end-pos)
 
-      ;; See also: http://www.w3.org/TR/2000/REC-xml-20001006#AVNormalize
+      ;; See also: https://www.w3.org/TR/2000/REC-xml-20001006#AVNormalize
 
       ;; Do we have a string between quotes (or double-quotes),
       ;;  or a simple word ?