diff --git a/youtube.txt b/youtube.txt
index 74ce8c7..75e4db4 100644
--- a/youtube.txt
+++ b/youtube.txt
@@ -1,4 +1,8 @@
+# Used for YouTube video streaming and thumbnails
 *.googlevideo.com
-# Used for YouTube video uploads:
+yt3.googleusercontent.com
+yt3.ggpht.com
+*.ytimg.com
+# Used for YouTube video uploads
 yt-video-upload.l.google.com
 upload.youtube.com
\ No newline at end of file