#onthisday

We track 1674 posts using #onthisday across 7 networks, carrying 37.1M engagement between them — an average of 22.2K per post.

It is used most on Bluesky: 1451 of the 1674 posts we hold, 87% of the total.

Where it performs hardest per post, though, is TikTok, averaging 222.3K — 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 →