Hashtag
A hashtag is a word or phrase prefixed with the pound sign that turns text into a clickable, searchable label, grouping a post with others on the same topic so people following or searching that term can find it.
Hashtags began as a way to organize conversation around a topic when feeds were mostly chronological. You tagged a post with a term, and anyone browsing or following that term could surface it. On X the mechanic still works for live events and searchable topics; on LinkedIn people can follow hashtags, though the discovery boost is far weaker than most creators assume.
The honest read for professional feeds today: hashtags are a minor topical signal, not a growth lever. Ranking leans on who engages with a post and how, not on how many tags it carries. Three or fewer specific, relevant tags is plenty. Stuffing ten generic ones like #motivation or #business looks like reach-chasing and adds little, and a caption crammed with them reads worse to a human than it helps with any algorithm.
Use hashtags where they still earn their place: a branded tag you want to own, a conference or event people are actively searching, or a niche topic with a following worth joining. Beyond that, spend the effort on the first line of the post instead.
Frequently asked questions
how many hashtags should i use on linkedin?
do hashtags still work in 2026?
what is the difference between a hashtag and a keyword?
Post Analyzer — Check whether your tags and formatting help or clutter a post. Open the free tool →