diff --git a/k8s/document_root/index.html b/k8s/document_root/index.html
index bf2ebb7..a45e392 100644
--- a/k8s/document_root/index.html
+++ b/k8s/document_root/index.html
@@ -208,10 +208,19 @@ dig @ns-aws.nono.io txt . +short -6 # forces IPv6 lookup; sample reply "2607:fb9
           "https://major.io/2021/06/06/a-new-future-for-icanhazip/">backstory</a>)
         </li>
         <li>
-          <a href="https://ipify.org/">ipify.org</a>
+          <a href="http://ipify.org/">ipify.org</a>
         </li>
         <li>
-          <a href="https://ipinfo.io/">ipinfo.io</a> (commercial)
+          <a href="http://ip4.me/">ip4.me</a>
+        </li>
+        <li>
+          <a href="http://curlmyip.org/">curlmyip.org</a>
+        </li>
+        <li>
+          <a href="http://ifconfig.co/">ifconfig.co</a>
+        </li>
+        <li>
+          <a href="http://ipinfo.io/">ipinfo.io</a> (commercial)
         </li>
       </ul>
       <p>A big advantage of using DNS queries instead of HTTP queries is bandwidth: querying