diff --git a/index.html b/index.html
index 2527a51..958e3c7 100644
--- a/index.html
+++ b/index.html
@@ -11,7 +11,7 @@
     shortName: "preload",
     specStatus: "ED",
     useExperimentalStyles: true,
-    edDraftURI: "http://w3c.github.io/preload/",
+    edDraftURI: "https://w3c.github.io/preload/",
     editors: [{
       name: "Ilya Grigorik",
       url: "https://www.igvita.com/",
@@ -28,7 +28,7 @@
       w3cid: "58673"
     }, ],
     wg: "Web Performance Working Group",
-    wgURI: "http://www.w3.org/webperf/",
+    wgURI: "https://www.w3.org/webperf/",
     license: 'w3c-software-doc',
     wgPublicList: "public-web-perf",
     subjectPrefix: "[preload]",
@@ -47,7 +47,7 @@
         href: 'https://github.com/w3c/preload/commits/gh-pages/index.html'
       }]
     }],
-    wgPatentURI: "http://www.w3.org/2004/01/pp-impl/45211/status"
+    wgPatentURI: "https://www.w3.org/2004/01/pp-impl/45211/status"
   };
   </script>
 </head>
@@ -544,8 +544,8 @@ <h2>IANA Considerations</h2>
       the link's context, without blocking rendering.</dd>
       <dt>Reference:</dt>
       <dd>
-        <a href="http://www.w3.org/TR/preload/">W3C Preload Specification
-        (http://www.w3.org/TR/preload/)</a>
+        <a href="https://www.w3.org/TR/preload/">W3C Preload Specification
+        (https://www.w3.org/TR/preload/)</a>
       </dd>
       <dt>Note:</dt>
       <dd>Additional target attributes establish the detailed fetch properties
@@ -592,7 +592,7 @@ <h2>Acknowledgments</h2>
 <!-- spec references. preserve before running tidy! -->
 [link]: https://html.spec.whatwg.org/multipage/semantics.html#the-link-element
 [external resource link]: https://html.spec.whatwg.org/multipage/semantics.html#external-resource-link
-[inserted into a document]: http://www.w3.org/TR/html5/infrastructure.html#in-a-document
+[inserted into a document]: https://www.w3.org/TR/html51/infrastructure.html#document-inserted-into-the-document
 [in a document]: https://html.spec.whatwg.org/multipage/infrastructure.html#in-a-document
 [Content-Type metadata]: https://html.spec.whatwg.org/multipage/infrastructure.html#content-type
 [valid media query list]: https://html.spec.whatwg.org/multipage/infrastructure.html#valid-media-query-list