How bio link previews work

When a user taps a link-in-bio URL, TikTok may show a preview card (image, title, domain) before navigating. This uses the same OG tag extraction as in-app link previews via TikTokSpider.

Why your bio link may not preview

1. Link shortener or redirect service – Linktree, Beacons, bit.ly, etc. TikTok previews the intermediary URL, not the final destination. The intermediary needs its own OG tags.
2. Missing OG tags – TikTokSpider can’t find og:title and og:image in the HTML.
3. TikTokSpider blocked – robots.txt or firewall preventing the crawl.
4. Caching – TikTok cached a version of the page before you added OG tags.

The fix

1. If you use a link-in-bio service, check that its page has OG tags (most do).
2. If possible, link directly to your page instead of through a redirect.
3. Verify og:title, og:description, and og:image are in the server-rendered HTML.
4. Test the exact URL in your bio:

curl -A "TikTokSpider" https://your-bio-link.com | grep -i "og:"

Link-in-bio services

Linktree, Beacons, and similar platforms set OG tags automatically. If the preview looks wrong, check the link-in-bio service’s dashboard, not your destination page’s tags.