diff --git a/_includes/news.markdown b/_includes/news.markdown
index 2bb2d30..194b666 100644
--- a/_includes/news.markdown
+++ b/_includes/news.markdown
@@ -97,7 +97,7 @@ OpenSlide now in MacPorts, 2012-09-23
 -------------------------------------
 Mac OS X users can now install OpenSlide from [MacPorts][macports].
 
-[macports]: http://www.macports.org/
+[macports]: https://www.macports.org/
 
 OpenSlide version 3.3.0, 2012-09-08
 -----------------------------------
@@ -126,7 +126,7 @@ OpenSlide user meeting in Baltimore
 There will be an [informal gathering][baltimore] of OpenSlide users on
 October 29, 2012 in Baltimore, MD.  Come by and introduce yourself!
 
-[baltimore]: http://lists.andrew.cmu.edu/pipermail/openslide-users/2012-July/000387.html
+[baltimore]: https://lists.andrew.cmu.edu/pipermail/openslide-users/2012-July/000387.html
 
 Windows binaries now available, 2012-08-10
 ------------------------------------------
diff --git a/_layouts/default.html b/_layouts/default.html
index 24ebbce..8a4dc62 100644
--- a/_layouts/default.html
+++ b/_layouts/default.html
@@ -29,7 +29,7 @@
 <div id="footer">
 <p>
   This page is published under the
-  <a rel="license" href="http://creativecommons.org/licenses/by-sa/4.0/">
+  <a rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/">
     Creative Commons Attribution-ShareAlike 4.0 International</a>
   license.
   {{ page.extra_credits }}
@@ -42,8 +42,7 @@
     var gcse = document.createElement('script');
     gcse.type = 'text/javascript';
     gcse.async = true;
-    gcse.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') +
-        '//www.google.com/cse/cse.js?cx=' + cx;
+    gcse.src = 'https://www.google.com/cse/cse.js?cx=' + cx;
     var s = document.getElementsByTagName('script')[0];
     s.parentNode.insertBefore(gcse, s);
   })();
diff --git a/demo/index.html b/demo/index.html
index dc7e6b4..8fca096 100644
--- a/demo/index.html
+++ b/demo/index.html
@@ -51,7 +51,7 @@
     <div id="details" class="scroll-parent"></div>
 </div>
 
-<script type="text/javascript" src="//code.jquery.com/jquery-1.11.3.min.js"></script>
+<script type="text/javascript" src="https://code.jquery.com/jquery-1.11.3.min.js"></script>
 <script type="text/javascript" src="openseadragon.min.js"></script>
 <script type="text/javascript" src="openseadragon-scalebar.min.js"></script>
 <script type="text/javascript">
diff --git a/docs/windows/index.md b/docs/windows/index.md
index e2358dd..855688f 100644
--- a/docs/windows/index.md
+++ b/docs/windows/index.md
@@ -17,7 +17,7 @@ OpenSlide is built for Windows using
 [MinGW-w64](http://mingw-w64.sourceforge.net/).  The easiest way to build
 OpenSlide and its dependencies is by using the
 [openslide-winbuild][winbuild-github] script, which can run on Linux or
-natively on Windows via [Cygwin](http://www.cygwin.com/).
+natively on Windows via [Cygwin](https://www.cygwin.com/).
 
 ### Python
 
diff --git a/download/index.markdown b/download/index.markdown
index e6b9ed9..02c94dd 100644
--- a/download/index.markdown
+++ b/download/index.markdown
@@ -67,7 +67,7 @@ Distribution Packages
   <tbody>
     <tr>
       <th>Linux</th>
-      <th><a href="http://fedoraproject.org/">Fedora</a></th>
+      <th><a href="https://fedoraproject.org/">Fedora</a></th>
       <td><code>yum install openslide</code></td>
       <td><code>yum install openslide-python</code></td>
       <td><code>yum install openslide-python3</code></td>
@@ -75,7 +75,7 @@ Distribution Packages
     <tr>
       <th>Linux</th>
       <th>
-        <a href="http://www.debian.org/">Debian</a><br>
+        <a href="https://www.debian.org/">Debian</a><br>
         <a href="http://www.ubuntu.com/">Ubuntu</a>
       </th>
       <td><code>apt-get install openslide-tools</code></td>
@@ -90,7 +90,7 @@ Distribution Packages
     </tr>
     <tr>
       <th>Linux</th>
-      <th><a href="http://www.opensuse.org/">openSUSE</a></th>
+      <th><a href="https://www.opensuse.org/">openSUSE</a></th>
       <td><code>zypper install openslide-tools</code></td>
       <td></td>
       <td></td>
@@ -98,7 +98,7 @@ Distribution Packages
     <tr>
       <th>Linux</th>
       <th>
-        <a href="http://www.redhat.com/products/enterprise-linux/">Red Hat Enterprise Linux</a><br>
+        <a href="https://www.redhat.com/products/enterprise-linux/">Red Hat Enterprise Linux</a><br>
         <a href="https://www.centos.org/">CentOS</a><br>
         <a href="https://www.scientificlinux.org/">Scientific Linux</a>
       </th>
@@ -116,7 +116,7 @@ Distribution Packages
     </tr>
     <tr>
       <th>Mac OS X</th>
-      <th><a href="http://www.macports.org/">MacPorts</a></th>
+      <th><a href="https://www.macports.org/">MacPorts</a></th>
       <td><code>port install openslide</code></td>
       <td><code>port install py-openslide</code></td>
       <td><code>port install py34-openslide</code></td>
@@ -184,4 +184,4 @@ Version Control
 <!-- Ensure spacing above footer -->
 <span></span>
 
-[git]: http://git-scm.com/
+[git]: https://git-scm.com/
diff --git a/formats/mirax/index.markdown b/formats/mirax/index.markdown
index 76562c0..d2f91b4 100644
--- a/formats/mirax/index.markdown
+++ b/formats/mirax/index.markdown
@@ -142,7 +142,7 @@ See Also
 that document was written; where it says "tile", substitute "image", and
 where it says "subtile", substitute "tile".
 
-[1]: http://lists.andrew.cmu.edu/pipermail/openslide-users/2012-July/000373.html
+[1]: https://lists.andrew.cmu.edu/pipermail/openslide-users/2012-July/000373.html
 
 
 Test Data
diff --git a/index.markdown b/index.markdown
index a185cd7..aa6a563 100644
--- a/index.markdown
+++ b/index.markdown
@@ -6,7 +6,7 @@ extra_credits:
   <a href="https://github.com/aral/fork-me-on-github-retina-ribbons/">
   "Fork me on GitHub" ribbon</a> copyright &copy; 2013 Aral Balkan,
   released under a
-  <a href="http://creativecommons.org/licenses/by/2.0/uk/">
+  <a href="https://creativecommons.org/licenses/by/2.0/uk/">
   Creative Commons Attribution 2.0&#58; England & Wales</a> license.
 ---
 
@@ -63,8 +63,8 @@ vendors and may be incomplete.  Problems should be reported to the OpenSlide
 OpenSlide is a product of the research group of [M. Satyanarayanan][satya]
 (Satya) in the Carnegie Mellon University [School of Computer Science][cmucs].
 
-[cmucs]: http://www.cs.cmu.edu/
-[satya]: http://www.cs.cmu.edu/~satya/
+[cmucs]: https://www.cs.cmu.edu/
+[satya]: https://www.cs.cmu.edu/~satya/
 
 
 See how [some projects use OpenSlide][other-projects].
diff --git a/search/index.html b/search/index.html
index aed42bd..7f835fe 100644
--- a/search/index.html
+++ b/search/index.html
@@ -53,8 +53,7 @@
     var gcse = document.createElement('script');
     gcse.type = 'text/javascript';
     gcse.async = true;
-    gcse.src = (document.location.protocol == 'https:' ? 'https:' : 'http:') +
-        '//www.google.com/cse/cse.js?cx=' + cx;
+    gcse.src = 'https://www.google.com/cse/cse.js?cx=' + cx;
     var s = document.getElementsByTagName('script')[0];
     s.parentNode.insertBefore(gcse, s);
   })();