diff --git a/data/unsupported-domains.txt b/data/unsupported-domains.txt
index 8007fa9..a334a33 100644
--- a/data/unsupported-domains.txt
+++ b/data/unsupported-domains.txt
@@ -583,7 +583,6 @@ amazon.com
 flickr.com
 pinterest.com
 # tumblr.com
-w3.org
 apple.com
 myspace.com
 vimeo.com