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TikTok SEO & Descriptions

Key TikTok Specs

  • Max Characters: 4,000 code units (up from the old 150 limit!)
  • Feed Cutoff: Truncates after just 90 characters in the video overlay
  • Hashtag Sweet Spot: 2 to 5 targeted tags
  • Bio Limit: 80 characters

TikTok SEO Strategy

TikTok operates heavily as a search engine. Captions should be rich in relevant search keywords and phrases rather than just hashtags.

With the character limit increased to 4,000, you have plenty of room to write detailed keyword descriptions that help the TikTok algorithm index your video contents.

The Overlay Truncation Pitfall

Even though you can write 4,000 characters, the text is overlayed on top of the video and cuts off after only **90 characters**.

Users must tap `more` to expand the caption. Keep your first 90 characters extremely punchy, describing the hook of the video, and save the long description blocks for below the fold.