If a video's owner has turned on comments, you can post comments and like, dislike, or reply to other people's comments on a video.
View comments on videos
To view comments on a video, scroll down the video's page. Replies are threaded to make it easy to follow conversations. All comments on YouTube are public and anyone can reply to a comment that you post.
If you can't find a comment after you get a notification, it's possible that the comment has already been removed. Comments can be removed by the person who posted them, the channel owner, or for policy violations.
View your comment history
You can view public comments you’ve left across YouTube.
- Go to Comment History.
- To go to the original place you posted your comment, click or tap the content.
If you commented on a video that's been deleted, or if your comment was removed by YouTube for a policy violation, it won't appear in this history.
Get shareable link for a comment
You can click or tap a comment's timestamp to create a highlighted comment link. This will give you a shareable link in the address bar for that specific comment and its thread.
Change what comments show first
On the web, you can change how comments show under a video. Use the drop-down Sort By menu to choose Top comments or Newest first.
Click the timestamp to create a 'Highlighted Comment' link. This will isolate your comment thread and give a shareable link in the address bar.