Hashtag limits and sensible counts, by platform

• A cap is a ceiling, not a target. Our check warns well below it, because a long row of tags makes a caption harder to read.
• Passing a cap can cost you more than the extra tags: on YouTube, a video with too many hashtags has all of them ignored.
• Threads uses one topic tag per post, so extra tags add nothing there.

The count we warn above is our own conservative setting for a quick check. It is advice about readability, not a rule set by the channel and not a promise about reach. Stated by the platform means the cap appeared in that platform's own documentation when we last read it.

• Choose tags that describe the post. A tag that does not fit the content only adds noise.
• Put tags at the end of the caption, after the point of the post, so the visible first lines stay readable.
• Write each tag in a way a screen reader can say: capitalise each word in a long tag, like #SpringLaunchWeek.
• Keep a short list of tags per topic and reuse it, so every post on a topic is grouped the same way.

This article cites no external pages directly. The caps come from the reference table used by the Branvoya tools, which records a review date and a confidence level instead of presenting them as permanent. For every channel, open its own help documentation and confirm the current rule.