diff --git a/blacklists/domains.json b/blacklists/domains.json
index 4d840b1e..db609c06 100644
--- a/blacklists/domains.json
+++ b/blacklists/domains.json
@@ -1,4 +1,5 @@
 [
+"ff9.io",
 "blockchain-nodes.net",
 "ensdomains.app",
 "dappsbrowser.online",