Unfortunately, there is no straightforward way to know if a particular comment on YouTube has been shadowbanned or censored. Shadow banning or comment censorship is a practice that is not commonly disclosed by YouTube and there is no way to directly check if a comment has been subject to this type of action.

However, there are some indirect ways to try and determine if a comment has been shadowbanned. For example, you can try to compare the number of views a video has received with the number of replies to your comment to see if there is a large discrepancy. Another option is to check the timestamp on your comment to see if it aligns with the published timestamps of other comments on the video.

It's important to note that sometimes comments get automatically filtered as spam or inappropriate by YouTube's algorithms, but this is not necessarily the same as a shadow ban.

Additionally, it's important to remember that YouTube is a private company that has the right to moderate its platform and may take steps to filter or remove comments as it sees fit.
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