diff --git a/pages/common/nokogiri.md b/pages/common/nokogiri.md
index c944c742e7..ad7334f426 100644
--- a/pages/common/nokogiri.md
+++ b/pages/common/nokogiri.md
@@ -1,6 +1,7 @@
 # nokogiri
 
 > An HTML, XML, SAX and Reader parser.
+> More information: <https://nokogiri.org>.
 
 - Parse the contents of a url or file: