Free tools / Open Graph and link preview checker

Free Open Graph, Twitter card and link preview checker

See what a link preview reads from a page: title, description, canonical URL, Open Graph and Twitter card tags, favicon, language, feeds and structured-data types.

The result appears here as JSON.

One free check per tool and IP address per day. Nothing is stored.

What you get

Title, description, canonical URL, language and hreflang alternates
Open Graph and Twitter card fields, favicon and theme colour
Feed links and JSON-LD types found on the page

Not returned: Rendered JavaScript content (it reads the HTML the server returns, like a link preview does).

Use it from code or an agent

curl "https://api.ambolt.dev/v1/url-metadata?url=https%3A%2F%2Fwww.sitemaps.org%2F&free=1"

Same tool as an MCP tool (url_metadata, free at 30 requests a minute), as a pay-per-call endpoint ($0.003 a call in USDC) and as an Apify Actor. Reference · Docs

Questions

Does it respect robots.txt?

Yes, and it refuses private and local addresses.

Why is my image missing?

Check that og:image is present in the HTML the server returns, not added by JavaScript.

Can I check many URLs?

Use the API or the Apify Actor with a list of URLs.