A field guide for every platform you post to.
Specs, timing, and the mistakes to skip, one guide per platform. Free to read, free to save, and free to hand to your AI assistant.
Instagram
Caption up to 2,200 characters, but only about 125 show before "more", so lead with the hook.
Updated 2026-07
TikTok
Vertical video with a hook in the first second or two is the whole game.
Updated 2026-07
YouTube
The title and thumbnail are the real hook on long-form, and you decide them before you shoot, not after.
Updated 2026-07
X
280 characters by default, longer if you are on Premium. Write tight, and make the first line carry the whole point.
Updated 2026-07
LinkedIn
Document carousels (PDF) and genuine first-person insight travel furthest.
Updated 2026-07
Facebook
Reels carry most of the organic reach now; short vertical video is your front door to new people.
Updated 2026-07
Threads
500 characters per post, text-first. Say one thing, and say it so someone wants to answer.
Updated 2026-07
Bluesky
300 characters, a tight budget. Write to it, do not trim to it.
Updated 2026-07
Pinterest
Pinterest is a search engine, not a feed. Keywords beat hashtags, and the words you choose are how new people find you.
Updated 2026-07
Reddit
Reddit is many small communities, not one feed. Post to the subreddits that actually fit your topic.
Updated 2026-07
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