Field notes
Playbooks, teardowns and the occasional argument — everything we have learned helping creators grow across every major platform.
LinkedIn image size by placement: feed posts, link cards, document posts, profile and company banners - and the mobile crop that decides what is seen.
Twitter image sizes on X: 16:9 for single images, 1200x628 for link cards, and the timeline crop that decides what people actually see.
TikTok video size is 1080x1920 at 9:16. The harder part is the safe zone - the caption, the action rail and the username cover a third of your frame.
Before blaming the algorithm, eliminate the five settings that remove a video from search outright. Each has a check that takes under a minute.
A YouTube page publishes far more about a video than the interface draws. Here is the full list of fields, what each one controls, and how to read them.
YouTube allows 100 characters in a title, but search, suggested and mobile each cut it far sooner. Here is where each surface truncates.
A YouTube timestamp link starts the video at an exact second. Here is the URL format, the chapter rules, and how to build both without counting seconds by hand.
YouTube thumbnail size is 1280x720 at 16:9 - but the number that matters is the 170 pixels wide it is actually viewed at.
YouTube SEO is not keyword stuffing. It is matching a real query, earning the click, and holding the view. Here is what each field does, in order of weight.
YouTube's own autocomplete is real demand data, free to read and impossible to fake. Here is how to turn one seed word into a video plan.
YouTube shows three hashtags above your title, ignores every hashtag past 60, and may remove over-tagged videos from search. Here is the working number.
The default YouTube embed code is fixed-width and sets cookies before anyone presses play. Here is the version that is responsive, lazy and privacy-enhanced.