docs/examples: URL updates

- also update two URLs outside of docs/examples
- fix spelling of filename persistant.c
- fix three long lines that started failing checksrc.pl

Closes https://github.com/curl/curl/pull/3036

34 files changed, 112 insertions, 110 deletions

diff --git a/docs/examples/.gitignore b/docs/examples/.gitignore
index 36cececc4..f04f246d8 100644
--- a/docs/examples/.gitignore
+++ b/docs/examples/.gitignore
@@ -46,7 +46,7 @@ multi-double
 multi-formadd
 multi-post
 multi-single
-persistant
+persistent
 pop3-dele
 pop3-list
 pop3-multi
diff --git a/docs/examples/10-at-a-time.c b/docs/examples/10-at-a-time.c
index 1da0ee210..638f425f2 100644
--- a/docs/examples/10-at-a-time.c
+++ b/docs/examples/10-at-a-time.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -35,54 +35,53 @@
 #include <curl/multi.h>
 
 static const char *urls[] = {
-  "http://www.microsoft.com",
-  "http://www.opensource.org",
-  "http://www.google.com",
-  "http://www.yahoo.com",
-  "http://www.ibm.com",
-  "http://www.mysql.com",
-  "http://www.oracle.com",
-  "http://www.ripe.net",
-  "http://www.iana.org",
-  "http://www.amazon.com",
-  "http://www.netcraft.com",
-  "http://www.heise.de",
-  "http://www.chip.de",
-  "http://www.ca.com",
-  "http://www.cnet.com",
-  "http://www.news.com",
-  "http://www.cnn.com",
-  "http://www.wikipedia.org",
-  "http://www.dell.com",
-  "http://www.hp.com",
-  "http://www.cert.org",
-  "http://www.mit.edu",
-  "http://www.nist.gov",
-  "http://www.ebay.com",
-  "http://www.playstation.com",
-  "http://www.uefa.com",
-  "http://www.ieee.org",
-  "http://www.apple.com",
-  "http://www.symantec.com",
-  "http://www.zdnet.com",
-  "http://www.fujitsu.com",
-  "http://www.supermicro.com",
-  "http://www.hotmail.com",
-  "http://www.ecma.com",
-  "http://www.bbc.co.uk",
-  "http://news.google.com",
-  "http://www.foxnews.com",
-  "http://www.msn.com",
-  "http://www.wired.com",
-  "http://www.sky.com",
-  "http://www.usatoday.com",
-  "http://www.cbs.com",
-  "http://www.nbc.com",
-  "http://slashdot.org",
-  "http://www.bloglines.com",
-  "http://www.techweb.com",
-  "http://www.newslink.org",
-  "http://www.un.org",
+  "https://www.microsoft.com",
+  "https://opensource.org",
+  "https://www.google.com",
+  "https://www.yahoo.com",
+  "https://www.ibm.com",
+  "https://www.mysql.com",
+  "https://www.oracle.com",
+  "https://www.ripe.net",
+  "https://www.iana.org",
+  "https://www.amazon.com",
+  "https://www.netcraft.com",
+  "https://www.heise.de",
+  "https://www.chip.de",
+  "https://www.ca.com",
+  "https://www.cnet.com",
+  "https://www.mozilla.org",
+  "https://www.cnn.com",
+  "https://www.wikipedia.org",
+  "https://www.dell.com",
+  "https://www.hp.com",
+  "https://www.cert.org",
+  "https://www.mit.edu",
+  "https://www.nist.gov",
+  "https://www.ebay.com",
+  "https://www.playstation.com",
+  "https://www.uefa.com",
+  "https://www.ieee.org",
+  "https://www.apple.com",
+  "https://www.symantec.com",
+  "https://www.zdnet.com",
+  "https://www.fujitsu.com/global/",
+  "https://www.supermicro.com",
+  "https://www.hotmail.com",
+  "https://www.ietf.org",
+  "https://www.bbc.co.uk",
+  "https://news.google.com",
+  "https://www.foxnews.com",
+  "https://www.msn.com",
+  "https://www.wired.com",
+  "https://www.sky.com",
+  "https://www.usatoday.com",
+  "https://www.cbs.com",
+  "https://www.nbc.com/",
+  "https://slashdot.org",
+  "https://www.informationweek.com",
+  "https://apache.org",
+  "https://www.un.org",
 };
 
 #define MAX 10 /* number of simultaneous transfers */
diff --git a/docs/examples/Makefile.inc b/docs/examples/Makefile.inc
index d0f55eebb..f51871f06 100644
--- a/docs/examples/Makefile.inc
+++ b/docs/examples/Makefile.inc
@@ -24,7 +24,7 @@
 check_PROGRAMS = 10-at-a-time anyauthput cookie_interface debug fileupload \
   fopen ftpget ftpgetresp ftpupload getinfo getinmemory http-post httpput  \
   https multi-app multi-debugcallback multi-double multi-post multi-single \
-  persistant post-callback postit2 sepheaders simple simplepost simplessl  \
+  persistent post-callback postit2 sepheaders simple simplepost simplessl  \
   sendrecv httpcustomheader certinfo chkspeed ftpgetinfo ftp-wildcard      \
   smtp-mail smtp-mime smtp-multi smtp-ssl smtp-tls smtp-vrfy smtp-expn     \
   rtsp externalsocket resolve progressfunc pop3-retr pop3-list pop3-uidl   \
@@ -38,9 +38,9 @@ check_PROGRAMS = 10-at-a-time anyauthput cookie_interface debug fileupload \
 
 # These examples require external dependencies that may not be commonly
 # available on POSIX systems, so don't bother attempting to compile them here.
-COMPLICATED_EXAMPLES = curlgtk.c curlx.c htmltitle.cpp cacertinmem.c	\
-  ghiper.c hiperfifo.c htmltidy.c multithread.c opensslthreadlock.c	\
-  sampleconv.c synctime.c threaded-ssl.c evhiperfifo.c			\
-  smooth-gtk-thread.c version-check.pl href_extractor.c asiohiper.cpp	\
-  multi-uv.c xmlstream.c usercertinmem.c sessioninfo.c			\
+COMPLICATED_EXAMPLES = curlgtk.c curlx.c htmltitle.cpp cacertinmem.c \
+  ghiper.c hiperfifo.c htmltidy.c multithread.c opensslthreadlock.c \
+  sampleconv.c synctime.c threaded-ssl.c evhiperfifo.c \
+  smooth-gtk-thread.c version-check.pl href_extractor.c asiohiper.cpp \
+  multi-uv.c xmlstream.c usercertinmem.c sessioninfo.c \
   threaded-shared-conn.c crawler.c ephiperfifo.c
diff --git a/docs/examples/Makefile.netware b/docs/examples/Makefile.netware
index 9ff6d9498..8aca32558 100644
--- a/docs/examples/Makefile.netware
+++ b/docs/examples/Makefile.netware
@@ -3,7 +3,7 @@
 ## Makefile for building curl.nlm (NetWare version - gnu make)
 ## Use: make -f Makefile.netware
 ##
-## Comments to: Guenter Knauf http://www.gknw.net/phpbb
+## Comments to: Guenter Knauf
 #
 #################################################################
 
diff --git a/docs/examples/cookie_interface.c b/docs/examples/cookie_interface.c
index 2af0619b5..32e9a1d1e 100644
--- a/docs/examples/cookie_interface.c
+++ b/docs/examples/cookie_interface.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -71,7 +71,7 @@ main(void)
   if(curl) {
     char nline[256];
 
-    curl_easy_setopt(curl, CURLOPT_URL, "http://www.example.com/");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
     curl_easy_setopt(curl, CURLOPT_COOKIEFILE, ""); /* start cookie engine */
     res = curl_easy_perform(curl);
diff --git a/docs/examples/debug.c b/docs/examples/debug.c
index 79250146d..884184a5e 100644
--- a/docs/examples/debug.c
+++ b/docs/examples/debug.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -140,7 +140,7 @@ int main(void)
     /* example.com is redirected, so we tell libcurl to follow redirection */
     curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
 
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
     res = curl_easy_perform(curl);
     /* Check for errors */
     if(res != CURLE_OK)
diff --git a/docs/examples/getinfo.c b/docs/examples/getinfo.c
index 5585564ce..d5a820d1f 100644
--- a/docs/examples/getinfo.c
+++ b/docs/examples/getinfo.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -33,7 +33,7 @@ int main(void)
 
   curl = curl_easy_init();
   if(curl) {
-    curl_easy_setopt(curl, CURLOPT_URL, "http://www.example.com/");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/");
     res = curl_easy_perform(curl);
 
     if(CURLE_OK == res) {
diff --git a/docs/examples/getinmemory.c b/docs/examples/getinmemory.c
index a21a2aafc..130d821da 100644
--- a/docs/examples/getinmemory.c
+++ b/docs/examples/getinmemory.c
@@ -73,7 +73,7 @@ int main(void)
   curl_handle = curl_easy_init();
 
   /* specify URL to get */
-  curl_easy_setopt(curl_handle, CURLOPT_URL, "http://www.example.com/");
+  curl_easy_setopt(curl_handle, CURLOPT_URL, "https://www.example.com/");
 
   /* send all data to this function  */
   curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
diff --git a/docs/examples/getredirect.c b/docs/examples/getredirect.c
index 347b1e9bc..64157f9cd 100644
--- a/docs/examples/getredirect.c
+++ b/docs/examples/getredirect.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -35,7 +35,7 @@ int main(void)
 
   curl = curl_easy_init();
   if(curl) {
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
 
     /* example.com is redirected, figure out the redirection! */
 
diff --git a/docs/examples/href_extractor.c b/docs/examples/href_extractor.c
index 16f50c0ec..aa2b43816 100644
--- a/docs/examples/href_extractor.c
+++ b/docs/examples/href_extractor.c
@@ -26,7 +26,7 @@
  * </DESC>
  */
 /*
- * The HTML parser is found at http://code.google.com/p/htmlstreamparser/
+ * The HTML parser is found at https://github.com/arjunc77/htmlstreamparser
  */
 
 #include <stdio.h>
diff --git a/docs/examples/htmltidy.c b/docs/examples/htmltidy.c
index 44af0c51e..02d01f40b 100644
--- a/docs/examples/htmltidy.c
+++ b/docs/examples/htmltidy.c
@@ -24,7 +24,7 @@
  * </DESC>
  */
 /*
- * LibTidy => http://tidy.sourceforge.net
+ * LibTidy => https://www.html-tidy.org/
  */
 
 #include <stdio.h>
diff --git a/docs/examples/multi-app.c b/docs/examples/multi-app.c
index fc31f5e68..78867d835 100644
--- a/docs/examples/multi-app.c
+++ b/docs/examples/multi-app.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -59,7 +59,7 @@ int main(void)
     handles[i] = curl_easy_init();
 
   /* set the options (I left out a few, you'll get the point anyway) */
-  curl_easy_setopt(handles[HTTP_HANDLE], CURLOPT_URL, "http://example.com");
+  curl_easy_setopt(handles[HTTP_HANDLE], CURLOPT_URL, "https://example.com");
 
   curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_URL, "ftp://example.com");
   curl_easy_setopt(handles[FTP_HANDLE], CURLOPT_UPLOAD, 1L);
diff --git a/docs/examples/multi-debugcallback.c b/docs/examples/multi-debugcallback.c
index fa95179de..59f72442a 100644
--- a/docs/examples/multi-debugcallback.c
+++ b/docs/examples/multi-debugcallback.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -136,7 +136,7 @@ int main(void)
   http_handle = curl_easy_init();
 
   /* set the options (I left out a few, you'll get the point anyway) */
-  curl_easy_setopt(http_handle, CURLOPT_URL, "http://www.example.com/");
+  curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
 
   curl_easy_setopt(http_handle, CURLOPT_DEBUGFUNCTION, my_trace);
   curl_easy_setopt(http_handle, CURLOPT_VERBOSE, 1L);
diff --git a/docs/examples/multi-double.c b/docs/examples/multi-double.c
index 79e44ca88..644e64b13 100644
--- a/docs/examples/multi-double.c
+++ b/docs/examples/multi-double.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -48,7 +48,7 @@ int main(void)
   http_handle2 = curl_easy_init();
 
   /* set options */
-  curl_easy_setopt(http_handle, CURLOPT_URL, "http://www.example.com/");
+  curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
 
   /* set options */
   curl_easy_setopt(http_handle2, CURLOPT_URL, "http://localhost/");
diff --git a/docs/examples/multi-formadd.c b/docs/examples/multi-formadd.c
index 975cb605e..c1bb13557 100644
--- a/docs/examples/multi-formadd.c
+++ b/docs/examples/multi-formadd.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -73,7 +73,7 @@ int main(void)
   if(curl && multi_handle) {
 
     /* what URL that receives this POST */
-    curl_easy_setopt(curl, CURLOPT_URL, "http://www.example.com/upload.cgi");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/upload.cgi");
     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
diff --git a/docs/examples/multi-post.c b/docs/examples/multi-post.c
index fe543312a..fe66ca901 100644
--- a/docs/examples/multi-post.c
+++ b/docs/examples/multi-post.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -69,7 +69,7 @@ int main(void)
     headerlist = curl_slist_append(headerlist, buf);
 
     /* what URL that receives this POST */
-    curl_easy_setopt(curl, CURLOPT_URL, "http://www.example.com/upload.cgi");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.com/upload.cgi");
     curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 
     curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
diff --git a/docs/examples/multi-single.c b/docs/examples/multi-single.c
index 3dca0f1af..530a5f501 100644
--- a/docs/examples/multi-single.c
+++ b/docs/examples/multi-single.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -59,7 +59,7 @@ int main(void)
   http_handle = curl_easy_init();
 
   /* set the options (I left out a few, you'll get the point anyway) */
-  curl_easy_setopt(http_handle, CURLOPT_URL, "http://www.example.com/");
+  curl_easy_setopt(http_handle, CURLOPT_URL, "https://www.example.com/");
 
   /* init a multi stack */
   multi_handle = curl_multi_init();
diff --git a/docs/examples/multi-uv.c b/docs/examples/multi-uv.c
index 1d8c96f58..8ca4b9096 100644
--- a/docs/examples/multi-uv.c
+++ b/docs/examples/multi-uv.c
@@ -29,7 +29,7 @@
 
    Requires libuv and (of course) libcurl.
 
-   See https://nikhilm.github.com/uvbook/ for more information on libuv.
+   See https://nikhilm.github.io/uvbook/ for more information on libuv.
 */
 
 #include <stdio.h>
diff --git a/docs/examples/multithread.c b/docs/examples/multithread.c
index e3ae8e671..83ed3f589 100644
--- a/docs/examples/multithread.c
+++ b/docs/examples/multithread.c
@@ -42,7 +42,7 @@
 const char * const urls[NUMT]= {
   "https://curl.haxx.se/",
   "ftp://cool.haxx.se/",
-  "http://www.contactor.se/",
+  "https://www.cag.se/",
   "www.haxx.se"
 };
 
diff --git a/docs/examples/persistant.c b/docs/examples/persistent.c
index a1e614bdb..723b68b8b 100644
--- a/docs/examples/persistant.c
+++ b/docs/examples/persistent.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -40,7 +40,7 @@ int main(void)
     curl_easy_setopt(curl, CURLOPT_HEADER, 1L);
 
     /* get the first document */
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
 
     /* Perform the request, res will get the return code */
     res = curl_easy_perform(curl);
@@ -51,7 +51,7 @@ int main(void)
 
     /* get another document from the same server using the same
        connection */
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/docs/");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/docs/");
 
     /* Perform the request, res will get the return code */
     res = curl_easy_perform(curl);
diff --git a/docs/examples/postinmemory.c b/docs/examples/postinmemory.c
index 176f24af3..25a1e8eae 100644
--- a/docs/examples/postinmemory.c
+++ b/docs/examples/postinmemory.c
@@ -68,7 +68,7 @@ int main(void)
   curl = curl_easy_init();
   if(curl) {
 
-    curl_easy_setopt(curl, CURLOPT_URL, "http://www.example.org/");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://www.example.org/");
 
     /* send all data to this function  */
     curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WriteMemoryCallback);
diff --git a/docs/examples/postit2-formadd.c b/docs/examples/postit2-formadd.c
index 0ac09f259..a501ce964 100644
--- a/docs/examples/postit2-formadd.c
+++ b/docs/examples/postit2-formadd.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -82,7 +82,7 @@ int main(int argc, char *argv[])
   headerlist = curl_slist_append(headerlist, buf);
   if(curl) {
     /* what URL that receives this POST */
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/examplepost.cgi");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/examplepost.cgi");
     if((argc == 2) && (!strcmp(argv[1], "noexpectheader")))
       /* only disable 100-continue header if explicitly requested */
       curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
diff --git a/docs/examples/postit2.c b/docs/examples/postit2.c
index 49391e1cd..2808f7a4e 100644
--- a/docs/examples/postit2.c
+++ b/docs/examples/postit2.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -78,7 +78,7 @@ int main(int argc, char *argv[])
        wanted */
     headerlist = curl_slist_append(headerlist, buf);
     /* what URL that receives this POST */
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/examplepost.cgi");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/examplepost.cgi");
     if((argc == 2) && (!strcmp(argv[1], "noexpectheader")))
       /* only disable 100-continue header if explicitly requested */
       curl_easy_setopt(curl, CURLOPT_HTTPHEADER, headerlist);
diff --git a/docs/examples/progressfunc.c b/docs/examples/progressfunc.c
index 51d75366c..86ad0d9ca 100644
--- a/docs/examples/progressfunc.c
+++ b/docs/examples/progressfunc.c
@@ -108,7 +108,7 @@ int main(void)
     prog.lastruntime = 0;
     prog.curl = curl;
 
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com/");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/");
 
 #if LIBCURL_VERSION_NUM >= 0x072000
     /* xferinfo was introduced in 7.32.0, no earlier libcurl versions will
diff --git a/docs/examples/resolve.c b/docs/examples/resolve.c
index 15e343f9e..c3b52d6f0 100644
--- a/docs/examples/resolve.c
+++ b/docs/examples/resolve.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -38,12 +38,12 @@ int main(void)
      PORT is the port number of the service where libcurl wants to connect to
      the HOST and ADDRESS is the numerical IP address
    */
-  host = curl_slist_append(NULL, "example.com:80:127.0.0.1");
+  host = curl_slist_append(NULL, "example.com:443:127.0.0.1");
 
   curl = curl_easy_init();
   if(curl) {
     curl_easy_setopt(curl, CURLOPT_RESOLVE, host);
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
     res = curl_easy_perform(curl);
 
     /* always cleanup */
diff --git a/docs/examples/rtsp.c b/docs/examples/rtsp.c
index 32084e9ef..75b5d396c 100644
--- a/docs/examples/rtsp.c
+++ b/docs/examples/rtsp.c
@@ -192,7 +192,8 @@ int main(int argc, char * const argv[])
   char *base_name = NULL;
 
   printf("\nRTSP request %s\n", VERSION_STR);
-  printf("    Project web site: http://code.google.com/p/rtsprequest/\n");
+  printf("    Project web site: "
+    "https://github.com/BackupGGCode/rtsprequest\n");
   printf("    Requires curl V7.20 or greater\n\n");
 
   /* check command line */
diff --git a/docs/examples/sampleconv.c b/docs/examples/sampleconv.c
index 96eff4669..7bfaa51c6 100644
--- a/docs/examples/sampleconv.c
+++ b/docs/examples/sampleconv.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -94,7 +94,7 @@ int main(void)
 
   curl = curl_easy_init();
   if(curl) {
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
 
     /* use platform-specific functions for codeset conversions */
     curl_easy_setopt(curl, CURLOPT_CONV_FROM_NETWORK_FUNCTION,
diff --git a/docs/examples/sendrecv.c b/docs/examples/sendrecv.c
index eedaf4cde..cf764be43 100644
--- a/docs/examples/sendrecv.c
+++ b/docs/examples/sendrecv.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -76,7 +76,7 @@ int main(void)
 
   curl = curl_easy_init();
   if(curl) {
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
     /* Do not do the transfer - only connect to host */
     curl_easy_setopt(curl, CURLOPT_CONNECT_ONLY, 1L);
     res = curl_easy_perform(curl);
diff --git a/docs/examples/sepheaders.c b/docs/examples/sepheaders.c
index a865d5796..8f3a5ff0f 100644
--- a/docs/examples/sepheaders.c
+++ b/docs/examples/sepheaders.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -49,7 +49,7 @@ int main(void)
   curl_handle = curl_easy_init();
 
   /* set URL to get */
-  curl_easy_setopt(curl_handle, CURLOPT_URL, "http://example.com");
+  curl_easy_setopt(curl_handle, CURLOPT_URL, "https://example.com");
 
   /* no progress meter please */
   curl_easy_setopt(curl_handle, CURLOPT_NOPROGRESS, 1L);
diff --git a/docs/examples/simple.c b/docs/examples/simple.c
index 7226f4b94..c61227054 100644
--- a/docs/examples/simple.c
+++ b/docs/examples/simple.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2016, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -33,7 +33,7 @@ int main(void)
 
   curl = curl_easy_init();
   if(curl) {
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
     /* example.com is redirected, so we tell libcurl to follow redirection */
     curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
 
diff --git a/docs/examples/simplepost.c b/docs/examples/simplepost.c
index e366f001b..8ec537b54 100644
--- a/docs/examples/simplepost.c
+++ b/docs/examples/simplepost.c
@@ -5,7 +5,7 @@
  *                            | (__| |_| |  _ <| |___
  *                             \___|\___/|_| \_\_____|
  *
- * Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
  *
  * This software is licensed as described in the file COPYING, which
  * you should have received as part of this distribution. The terms
@@ -36,7 +36,7 @@ int main(void)
 
   curl = curl_easy_init();
   if(curl) {
-    curl_easy_setopt(curl, CURLOPT_URL, "http://example.com");
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
     curl_easy_setopt(curl, CURLOPT_POSTFIELDS, postthis);
 
     /* if we don't provide POSTFIELDSIZE, libcurl will strlen() by
diff --git a/docs/examples/smooth-gtk-thread.c b/docs/examples/smooth-gtk-thread.c
index 8451743a6..5a4f18fd9 100644
--- a/docs/examples/smooth-gtk-thread.c
+++ b/docs/examples/smooth-gtk-thread.c
@@ -64,7 +64,7 @@ size_t write_file(void *ptr, size_t size, size_t nmemb, FILE *stream)
   return fwrite(ptr, size, nmemb, stream);
 }
 
-/* http://xoap.weather.com/weather/local/46214?cc=*&dayf=5&unit=i */
+/* https://weather.com/weather/today/l/46214?cc=*&dayf=5&unit=i */
 void *pull_one_url(void *NaN)
 {
   CURL *curl;
diff --git a/docs/examples/synctime.c b/docs/examples/synctime.c
index 596962dc2..d84cea913 100644
--- a/docs/examples/synctime.c
+++ b/docs/examples/synctime.c
@@ -63,8 +63,10 @@
  *    webserver provide Cache-Control to prevent caching.
  *
  * References:
- * https://web.archive.org/web/20100228012139/tf.nist.gov/timefreq/service/its.htm
- * https://web.archive.org/web/20100409024302/tf.nist.gov/timefreq/service/firewall.htm
+ * https://web.archive.org/web/20100228012139/ \
+ *    tf.nist.gov/timefreq/service/its.htm
+ * https://web.archive.org/web/20100409024302/ \
+ *    tf.nist.gov/timefreq/service/firewall.htm
  *
  * Usage:
  * This software will synchronise your computer clock only when you issue
diff --git a/docs/examples/xmlstream.c b/docs/examples/xmlstream.c
index 296ae3b26..8036e480d 100644
--- a/docs/examples/xmlstream.c
+++ b/docs/examples/xmlstream.c
@@ -25,7 +25,7 @@
  */
 /* Written by David Strauss
  *
- * Expat => http://www.libexpat.org/
+ * Expat => https://libexpat.github.io/
  *
  * gcc -Wall -I/usr/local/include xmlstream.c -lcurl -lexpat -o xmlstream
  *
@@ -131,7 +131,7 @@ int main(void)
   curl_global_init(CURL_GLOBAL_DEFAULT);
   curl_handle = curl_easy_init();
   curl_easy_setopt(curl_handle, CURLOPT_URL,
-                   "http://www.w3schools.com/xml/simple.xml");
+                   "https://www.w3schools.com/xml/simple.xml");
   curl_easy_setopt(curl_handle, CURLOPT_WRITEFUNCTION, parseStreamCallback);
   curl_easy_setopt(curl_handle, CURLOPT_WRITEDATA, (void *)parser);