diff --git a/Source/domainset/cdn.conf b/Source/domainset/cdn.conf
index 346e9719..c0076b26 100644
--- a/Source/domainset/cdn.conf
+++ b/Source/domainset/cdn.conf
@@ -67,7 +67,7 @@ docs.rs
 godoc.org
 webpack.js.org
 vuejs.org
-react.dev
+.react.dev
 .reactjs.org
 www.typescriptlang.org
 typescript.azureedge.net
diff --git a/Source/non_ip/global.conf b/Source/non_ip/global.conf
index 8cb27240..55951142 100644
--- a/Source/non_ip/global.conf
+++ b/Source/non_ip/global.conf
@@ -513,6 +513,7 @@ DOMAIN-SUFFIX,shutterstock.com
 DOMAIN-SUFFIX,sketch.cloud
 DOMAIN-SUFFIX,sketch.com
 DOMAIN-SUFFIX,skk.moe
+DOMAIN-SUFFIX,slack.com
 DOMAIN-SUFFIX,sleazyfork.org
 DOMAIN-SUFFIX,slideshare.net
 DOMAIN-SUFFIX,solidot.org