diff --git a/readme/co.md b/readme/co.md
index 8bb0d82c..6407feac 100644
--- a/readme/co.md
+++ b/readme/co.md
@@ -89,6 +89,7 @@ Stu repositoriu hè una lista di siti web chì sò daretu à "The Great Cloudwal
 
 **Più infurmazione**
 * [Myth Catalog](../subfiles/myth_catalog.md)
+* [How many % of top 1,000 most visited sites(2010) are using Cloudflare today?](../subfiles/google_ad_planner_top_1000_sites.md)
 * [The Great Cloudwall](../pdf/2019-Jeff_Cliff_Book1.txt), [Mr. Jeff Cliff](https://shitposter.club/users/jeffcliff)
   * Scaricà: [PDF](../pdf/2019-The_Great_Cloudwall.pdf), [ePUB](../pdf/2019-Jeff_Cliff_The_Great_Cloudwall.epub)
   * EBook originale (ePUB) hè stata eliminata da BookRix GmbH per via di violazione di copyright di materiale CC0