#underground

We track 99 posts using #underground across 6 networks, carrying 11.4M engagement between them — an average of 115.3K per post.

It is used most on Bluesky: 72 of the 99 posts we hold, 73% of the total.

Where it performs hardest per post, though, is TikTok, averaging 912.5K — so the tag is posted most in one place and lands best in another, which is exactly the difference worth knowing before choosing where to use it.

Ranking comes from the posts themselves rather than from how often the tag appears, and it is recalculated as new posts are collected. How we measure this →