Notes from inside a publishing pipeline. Mostly the parts of each platform that are not documented anywhere useful, and that only show up once a post has already gone out wrong.
Kept up to date
A dated log of every change to what you are allowed to publish, kept by people who have to fix the connector when a platform moves the rules. Instagram halving your hashtags, Bluesky raising the image limit, and the ones nobody announced at all.
Every platform reports a lifetime total, so sorting your posts by views mostly sorts them by age. Why that ruins the comparison, and a free tracker that reads every post at the same age so the numbers finally mean something.
Every limit as of September 2026, including the three most cheat sheets get wrong: Bluesky counts graphemes rather than characters, TikTok counts every emoji twice, and Instagram quietly capped hashtags at five. With a free tool that reads your own caption and tells you what breaks.
ContentSling