diff --git a/README.md b/README.md
index bffce93..8057423 100644
--- a/README.md
+++ b/README.md
@@ -632,6 +632,7 @@ Be sure to read [How To Contribute](CONTRIBUTING.MD)
 - 🌐[Optimizilla](http://optimizilla.com/)
 - 🌐[PageSpeed Insights](https://developers.google.com/speed/pagespeed/insights/)
 - 🌐[Sizzy](https://sizzy.co/)
+- 🌐[Sez](https://sez.c-sharptutorial.com/) 
 - 🌐[Usability Checklist](https://stayintech.com/info/UX)
 - 🌐[Who Is](https://who.is/)
 - 🌐[Woorank](https://www.woorank.com/)