diff --git a/content.js b/content.js
index b3d46a5..7f2c08e 100644
--- a/content.js
+++ b/content.js
@@ -63,8 +63,9 @@ var observer = new MutationObserver(function(mutations){
 
 var config = {attributes: true};
 
-// Only run this on Medium sites. 
-if (document.querySelector('head meta[property="al:ios:app_name"][content="medium"]')) {
+// This extension runs on all domains so it can Make Medium Readable Again even for publications on custom domains.
+// Here we make sure the code only runs on Medium sites.
+if (document.querySelector('head meta[property="al:ios:app_name"][content="medium" i]')) {
 	makeReadable();
 	shrinkHeaderImages();
 
diff --git a/options.html b/options.html
index f673610..f1ed022 100644
--- a/options.html
+++ b/options.html
@@ -27,7 +27,7 @@
 
 		<hr />
 
-		<h2>Defaults</h2>
+		<h2>Default Features</h2>
 
 		<label>
 			<input type="checkbox" checked="checked" disabled="disabled"> Un-stick top navigation bar