Twitterbot
Fetches URLs shared in tweets to render the Twitter Card preview. Reads twitter:card, twitter:title, twitter:image, falls back to og:* tags.
Specs
| Vendor | X |
| Category | |
| robots.txt token | Twitterbot |
| Renders JavaScript | HTTP only |
| Honors robots.txt | partial |
User-Agent string
Mozilla/5.0 (compatible; Twitterbot/1.0)Considerations
- Static HTML required for cards. SPAs that don't SSR card metadata get blank previews.
- The UA still says 'Twitterbot' even after the X rebrand.
robots.txt recipe
User-agent: Twitterbot
Allow: /Sources: X Developer · Card markup