The Posted Once Blog
Practical guides on scheduling, posting at the right time, and growing on every platform.
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YouTube Thumbnail Size Guide 2026
YouTube recommends 3840x2160 thumbnails at 16:9, with a 2MB limit on mobile uploads and 50MB on desktop. Full verified specs, formats, and file size rules.
3 min read
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YouTube Upload File Size Limit 2026
Verified YouTube accounts can upload up to 256GB or 12 hours, whichever comes first. Unverified accounts are capped at 15 minutes. Full breakdown here.
3 min read
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Pinterest Character Limit Guide 2026
Pinterest pin descriptions run up to 500 characters, titles up to 100. Here's the full breakdown of every Pinterest text field and where each one cuts off.
3 min read