diff --git a/data/templates/clean/css/phpdocumentor-clean-icons/Read Me.txt b/data/templates/clean/css/phpdocumentor-clean-icons/Read Me.txt
index 9d2b9e570c..9664909f25 100644
--- a/data/templates/clean/css/phpdocumentor-clean-icons/Read Me.txt	
+++ b/data/templates/clean/css/phpdocumentor-clean-icons/Read Me.txt	
@@ -1,3 +1,3 @@
 To modify your generated font, use the *dev.svg* file, located in the *fonts* folder in this package. You can import this dev.svg file to the IcoMoon app. All the tags (class names) and the Unicode points of your glyphs are saved in this file.
 
-See the documentation for more info on how to use this package: http://icomoon.io/#docs/font-face
\ No newline at end of file
+See the documentation for more info on how to use this package: https://icomoon.io/#docs/font-face
diff --git a/data/templates/clean/css/phpdocumentor-clean-icons/fonts/phpdocumentor-clean-icons.dev.svg b/data/templates/clean/css/phpdocumentor-clean-icons/fonts/phpdocumentor-clean-icons.dev.svg
index a936ae5ca0..4cb9bd0e89 100644
--- a/data/templates/clean/css/phpdocumentor-clean-icons/fonts/phpdocumentor-clean-icons.dev.svg
+++ b/data/templates/clean/css/phpdocumentor-clean-icons/fonts/phpdocumentor-clean-icons.dev.svg
@@ -3,7 +3,7 @@
 <svg xmlns="http://www.w3.org/2000/svg">
 <metadata>
 This is a custom SVG font generated by IcoMoon.
-<iconset id="phpdocumentor-clean-icons" name="phpdocumentor-clean-icons" href="https://www.phpdoc.org" grid="16"></iconset><author name="Mike van Riel" href="http://www.mikevanriel.com"></author><license name="SIL"></license>
+<iconset id="phpdocumentor-clean-icons" name="phpdocumentor-clean-icons" href="https://www.phpdoc.org" grid="16"></iconset><author name="Mike van Riel" href="https://mikevanriel.com"></author><license name="SIL"></license>
 </metadata>
 <defs>
 <font id="phpdocumentor-clean-icons" horiz-adv-x="512" >
diff --git a/data/templates/clean/css/phpdocumentor-clean-icons/fonts/phpdocumentor-clean-icons.svg b/data/templates/clean/css/phpdocumentor-clean-icons/fonts/phpdocumentor-clean-icons.svg
index 6af6a2aa92..d454385307 100644
--- a/data/templates/clean/css/phpdocumentor-clean-icons/fonts/phpdocumentor-clean-icons.svg
+++ b/data/templates/clean/css/phpdocumentor-clean-icons/fonts/phpdocumentor-clean-icons.svg
@@ -3,7 +3,7 @@
 <svg xmlns="http://www.w3.org/2000/svg">
 <metadata>
 This is a custom SVG font generated by IcoMoon.
-<iconset id="phpdocumentor-clean-icons" name="phpdocumentor-clean-icons" href="https://www.phpdoc.org" grid="16"></iconset><author name="Mike van Riel" href="http://www.mikevanriel.com"></author><license name="SIL"></license>
+<iconset id="phpdocumentor-clean-icons" name="phpdocumentor-clean-icons" href="https://www.phpdoc.org" grid="16"></iconset><author name="Mike van Riel" href="https://mikevanriel.com/"></author><license name="SIL"></license>
 </metadata>
 <defs>
 <font id="phpdocumentor-clean-icons" horiz-adv-x="512" >
diff --git a/data/templates/clean/htaccess.dist b/data/templates/clean/htaccess.dist
index 7b01f9bfd1..4c8879e518 100644
--- a/data/templates/clean/htaccess.dist
+++ b/data/templates/clean/htaccess.dist
@@ -1,4 +1,4 @@
-# Fixes a vulnerability in CentOS: http://stackoverflow.com/questions/20533279/prevent-php-from-parsing-non-php-files-such-as-somefile-php-txt
+# Fixes a vulnerability in CentOS: https://stackoverflow.com/questions/20533279/
 <FilesMatch \.php\.txt$>
     RemoveHandler .php
     ForceType text/plain
diff --git a/data/templates/clean/images/custom-icons.svg b/data/templates/clean/images/custom-icons.svg
index c6b8037f47..378036b678 100644
--- a/data/templates/clean/images/custom-icons.svg
+++ b/data/templates/clean/images/custom-icons.svg
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<!-- Created with Inkscape (https://inkscape.org/) -->
 
 <svg
    xmlns:dc="http://purl.org/dc/elements/1.1/"
diff --git a/data/templates/clean/images/icon-class.svg b/data/templates/clean/images/icon-class.svg
index 7dacd0c73a..336d312750 100644
--- a/data/templates/clean/images/icon-class.svg
+++ b/data/templates/clean/images/icon-class.svg
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<!-- Created with Inkscape (https://inkscape.org/) -->
 
 <svg
    xmlns:dc="http://purl.org/dc/elements/1.1/"
diff --git a/data/templates/clean/images/icon-interface.svg b/data/templates/clean/images/icon-interface.svg
index 7c6371efcb..307346ee41 100644
--- a/data/templates/clean/images/icon-interface.svg
+++ b/data/templates/clean/images/icon-interface.svg
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<!-- Created with Inkscape (https://inkscape.org/) -->
 
 <svg
    xmlns:dc="http://purl.org/dc/elements/1.1/"
diff --git a/data/templates/clean/images/icon-trait.svg b/data/templates/clean/images/icon-trait.svg
index 03cf08f453..df77d4193b 100644
--- a/data/templates/clean/images/icon-trait.svg
+++ b/data/templates/clean/images/icon-trait.svg
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<!-- Created with Inkscape (https://inkscape.org/) -->
 
 <svg
    xmlns:dc="http://purl.org/dc/elements/1.1/"
diff --git a/data/templates/guides/rtd/html/layout.html.twig b/data/templates/guides/rtd/html/layout.html.twig
index bd0b9118fc..a0c4aae888 100644
--- a/data/templates/guides/rtd/html/layout.html.twig
+++ b/data/templates/guides/rtd/html/layout.html.twig
@@ -34,7 +34,7 @@
     <link rel="stylesheet" href="{{ asset('css/theme.css') }}" type="text/css"/>
     <link rel="stylesheet" href="{{ asset('css/badge_only.css') }}" type="text/css"/>
 
-    {# Keep modernizr in head - http://modernizr.com/docs/#installing #}
+    {# Keep modernizr in head - https://modernizr.com/docs/#installing #}
     <script src="{{ asset('js/modernizr.min.js') }}"></script>
 
 </head>
diff --git a/data/templates/responsive-twig/img/icons/icon_template.svg b/data/templates/responsive-twig/img/icons/icon_template.svg
index b0428aa4f9..da149c2913 100644
--- a/data/templates/responsive-twig/img/icons/icon_template.svg
+++ b/data/templates/responsive-twig/img/icons/icon_template.svg
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<!-- Created with Inkscape (https://inkscape.org/) -->
 
 <svg
    xmlns:dc="http://purl.org/dc/elements/1.1/"
diff --git a/data/templates/responsive-twig/js/template.js b/data/templates/responsive-twig/js/template.js
index 40f8303a1b..f68726456a 100644
--- a/data/templates/responsive-twig/js/template.js
+++ b/data/templates/responsive-twig/js/template.js
@@ -145,7 +145,7 @@ $(document).ready(function() {
         $("body > .container").prepend(
             '<div class="alert alert-error"><a class="close" data-dismiss="alert">×</a>' +
             'You are using Google Chrome in a local environment; AJAX interaction has been ' +
-            'disabled because Chrome cannot <a href="http://code.google.com/p/chromium/issues/detail?id=40787">' +
+            'disabled because Chrome cannot <a href="https://bugs.chromium.org/p/chromium/issues/detail?id=40787">' +
             'retrieve files using Ajax</a>.</div>'
         );
     }
diff --git a/data/templates/responsive-twig/layout.html.twig b/data/templates/responsive-twig/layout.html.twig
index 916dc3f615..dfe9567daf 100644
--- a/data/templates/responsive-twig/layout.html.twig
+++ b/data/templates/responsive-twig/layout.html.twig
@@ -117,8 +117,8 @@
 
     {% block footer %}
     <footer class="span12">
-            Template is built using <a href="http://twitter.github.com/bootstrap/">Twitter Bootstrap 2</a> and icons provided by
-            <a href="http://glyphicons.com/">Glyphicons</a>.<br/>
+            Template is built using <a href="https://getbootstrap.com/">Twitter Bootstrap 2</a> and icons provided by
+            <a href="https://glyphicons.com/">Glyphicons</a>.<br/>
             Documentation is powered by <a href="https://www.phpdoc.org/">phpDocumentor {{ version }}</a> and<br/>
             generated on {{ now|date("r") }}.<br/>
     </footer>
diff --git a/docs/.templates/responsive/layout.html b/docs/.templates/responsive/layout.html
index 50dc832b4b..aa35c740fc 100644
--- a/docs/.templates/responsive/layout.html
+++ b/docs/.templates/responsive/layout.html
@@ -101,7 +101,7 @@ <h1 class="phpdocumentor-sidebar__category-header">{{ _('Next topic') }}</h1>
     <script src="https://code.jquery.com/jquery-2.2.4.min.js"></script>
     <script src="https://cdn.jsdelivr.net/gh/google/code-prettify@master/loader/run_prettify.js"></script>
     <script src="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.0/js/all.min.js" integrity="sha256-0vuk8LXoyrmCjp1f0O300qo1M75ZQyhH9X3J6d+scmk=" crossorigin="anonymous"></script>
-    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.0/css/all.min.css" integrity="sha256-ybRkN9dBjhcS2qrW1z+hfCxq+1aBdwyQM5wlQoQVt/0=" crossorigin="anonymous" />    <link rel="apple-touch-icon" sizes="72x72" href="http://demo.phpdoc.org/Responsive/img/apple-touch-icon-72x72.png">
+    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.12.0/css/all.min.css" integrity="sha256-ybRkN9dBjhcS2qrW1z+hfCxq+1aBdwyQM5wlQoQVt/0=" crossorigin="anonymous" />
     <link rel="apple-touch-icon" sizes="114x114" href="{{ pathto('_static/img/favicon.png', 1) }}">
     {%- block linktags %}
     {%- if hasdoc('about') %}