docs/comments: Update to secure URL versions

Closes #1741

8 files changed, 13 insertions, 13 deletions

diff --git a/docs/BINDINGS.md b/docs/BINDINGS.md
index ecd231a90..0c6534800 100644
--- a/docs/BINDINGS.md
+++ b/docs/BINDINGS.md
@@ -65,7 +65,7 @@ Lua: [luacurl](http://luacurl.luaforge.net/) by Alexander Marinov, [Lua-cURL](ht
 
 [Object-Pascal](http://www.tekool.com/opcurl) Free Pascal, Delphi and Kylix binding written by Christophe Espern.
 
-[OCaml](http://opam.ocaml.org/packages/ocurl/) Written by Lars Nilsson and ygrek
+[OCaml](https://opam.ocaml.org/packages/ocurl/) Written by Lars Nilsson and ygrek
 
 [Pascal](http://houston.quik.com/jkp/curlpas/) Free Pascal, Delphi and Kylix binding written by Jeffrey Pohlmeyer.
 
@@ -83,7 +83,7 @@ Bailiff and Bálint Szilakszi,
 
 [Rexx](https://rexxcurl.sourceforge.io/) Written Mark Hessling
 
-[Ring](http://ring-lang.sourceforge.net/doc1.3/libcurl.html) RingLibCurl by Mahmoud Fayed
+[Ring](https://ring-lang.sourceforge.io/doc1.3/libcurl.html) RingLibCurl by Mahmoud Fayed
 
 RPG, support for ILE/RPG on OS/400 is included in source distribution
 
@@ -99,7 +99,7 @@ Ruby: [curb](http://curb.rubyforge.org/) written by Ross Bamford, [ruby-curl-mul
 
 [Smalltalk](http://www.squeaksource.com/CurlPlugin/) Written by Danil Osipchuk
 
-[SP-Forth](http://spf.cvs.sourceforge.net/viewvc/spf/devel/~ac/lib/lin/curl/) Written by Andrey Cherezov
+[SP-Forth](https://sourceforge.net/p/spf/spf/ci/master/tree/devel/~ac/lib/lin/curl/) Written by Andrey Cherezov
 
 [SPL](http://www.clifford.at/spl/) Written by Clifford Wolf
 
diff --git a/docs/CIPHERS.md b/docs/CIPHERS.md
index 99d261bdd..e09533b0d 100644
--- a/docs/CIPHERS.md
+++ b/docs/CIPHERS.md
@@ -250,7 +250,7 @@ libcurl was built to use. This is an attempt to list known cipher names.
 
 ## GSKit
 
-Ciphers are internally defined as numeric codes (http://www.ibm.com/support/knowledgecenter/ssw_ibm_i_73/apis/gsk_attribute_set_buffer.htm),
+Ciphers are internally defined as numeric codes (https://www.ibm.com/support/knowledgecenter/ssw_ibm_i_73/apis/gsk_attribute_set_buffer.htm),
 but libcurl maps them to the following case-insensitive names.
 
 ### SSL2 cipher suites (insecure: disabled by default)
diff --git a/docs/FAQ b/docs/FAQ
index 1ab3c0e76..5b9810637 100644
--- a/docs/FAQ
+++ b/docs/FAQ
@@ -162,7 +162,7 @@ FAQ
   We pronounce curl with an initial k sound. It rhymes with words like girl
   and earl. This is a short WAV file to help you:
 
-     http://media.merriam-webster.com/soundc11/c/curl0001.wav
+     https://media.merriam-webster.com/soundc11/c/curl0001.wav
 
   There are numerous sub-projects and related projects that also use the word
   curl in the project names in various combinations, but you should take
@@ -366,8 +366,8 @@ FAQ
   Comprehensible explanations of the meaning of such numbers and how to obtain
   them (resp.) are here
 
-  http://www.bis.doc.gov/licensing/exportingbasics.htm
-  http://www.bis.doc.gov/licensing/do_i_needaneccn.html
+  https://www.bis.doc.gov/licensing/exportingbasics.htm
+  https://www.bis.doc.gov/licensing/do_i_needaneccn.html
 
   An incomprehensible description of the two numbers above is here
   http://www.access.gpo.gov/bis/ear/pdf/ccl5-pt2.pdf
diff --git a/docs/INSTALL.md b/docs/INSTALL.md
index 529a907df..6c2c8ce64 100644
--- a/docs/INSTALL.md
+++ b/docs/INSTALL.md
@@ -278,8 +278,8 @@ before including any libcurl header. Your program does not need the
 `USE_LWIPSOCK` preprocessor definition which is for libcurl internals only.
 
 Compilation has been verified with [lwIP
-1.4.0](http://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip) and
-[contrib-1.4.0](http://download.savannah.gnu.org/releases/lwip/contrib-1.4.0.zip).
+1.4.0](https://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip) and
+[contrib-1.4.0](https://download.savannah.gnu.org/releases/lwip/contrib-1.4.0.zip).
 
 This BSD-style lwIP TCP/IP stack support must be considered experimental given
 that it has been verified that lwIP 1.4.0 still needs some polish, and libcurl
diff --git a/docs/INTERNALS.md b/docs/INTERNALS.md
index a733e1f0c..2e273a9dc 100644
--- a/docs/INTERNALS.md
+++ b/docs/INTERNALS.md
@@ -1079,7 +1079,7 @@ for older and later versions as things don't change drastically that often.
 
 [1]: https://curl.haxx.se/libcurl/c/curl_easy_setopt.html
 [2]: https://curl.haxx.se/libcurl/c/curl_easy_init.html
-[3]: http://c-ares.haxx.se/
+[3]: https://c-ares.haxx.se/
 [4]: https://tools.ietf.org/html/rfc7230 "RFC 7230"
 [5]: https://curl.haxx.se/libcurl/c/CURLOPT_ACCEPT_ENCODING.html
 [6]: https://curl.haxx.se/docs/manpage.html#--compressed
diff --git a/docs/KNOWN_BUGS b/docs/KNOWN_BUGS
index 517cd144a..17731945a 100644
--- a/docs/KNOWN_BUGS
+++ b/docs/KNOWN_BUGS
@@ -380,7 +380,7 @@ problems may have been fixed or changed somewhat since this was written!
 
  libcurl fails to build with MIT Kerberos for Windows (KfW) due to KfW's
  library header files exporting symbols/macros that should be kept private to
- the KfW library. See ticket #5601 at http://krbdev.mit.edu/rt/
+ the KfW library. See ticket #5601 at https://krbdev.mit.edu/rt/
 
 6.3 NTLM in system context uses wrong name
 
diff --git a/docs/libcurl/libcurl-thread.3 b/docs/libcurl/libcurl-thread.3
index 9514d819e..c18676e7e 100644
--- a/docs/libcurl/libcurl-thread.3
+++ b/docs/libcurl/libcurl-thread.3
@@ -53,7 +53,7 @@ https://www.openssl.org/docs/man1.0.2/crypto/threads.html#DESCRIPTION
 https://curl.haxx.se/libcurl/c/opensslthreadlock.html
 
 .IP GnuTLS
-http://gnutls.org/manual/html_node/Thread-safety.html
+https://gnutls.org/manual/html_node/Thread-safety.html
 .IP NSS
 thread-safe already without anything required.
 .IP PolarSSL
diff --git a/docs/mk-ca-bundle.1 b/docs/mk-ca-bundle.1
index c8f5177e1..f754e74c7 100644
--- a/docs/mk-ca-bundle.1
+++ b/docs/mk-ca-bundle.1
@@ -107,7 +107,7 @@ Returns 0 on success. Returns 1 if it fails to download data.
 .SH CERTDATA FORMAT
 The file format used by Mozilla for this trust information seems to be documented here:
 .nf
-http://p11-glue.freedesktop.org/doc/storing-trust-policy/storing-trust-existing.html
+https://p11-glue.freedesktop.org/doc/storing-trust-policy/storing-trust-existing.html
 .fi
 .SH SEE ALSO
 .BR curl (1)