- Why not just make my own OG images?
- You can. But then you're maintaining a second rendering pipeline for every page. Most people don't bother, which is why most shared links look bad.
- Will it work on my site?
- If a normal person can open it in a browser, probably yes.
- What about login-required pages?
- Those won't work. We don't do auth. Public pages only.
- Can I refresh a cached image?
- Yes, with a signed request. You publish a public key on your site and we verify it. Details in the docs.
- How long does the cache last?
- A week for good renders. Half an hour for fallbacks.
- The image doesn't look exactly like my site.
- We optimize for readability at card size — the important content should be clear even in a small preview.
- Is this a screenshot API?
- We make social cards — designed to look good when shared on Slack, Twitter, iMessage, etc.