LAN Media

Free SEO tool

Open Graph checker

Paste one URL or a short list. We fetch the page, read Open Graph and Twitter Card tags, fetch the share image, and show a preview of the card.

Up to 10 public http(s) URLs. We fetch the HTML, read og:* and twitter:* tags, then request the declared image.

What this checker reports

Share cards fail for boring reasons: a missing title, an image that 404s, a relative URL, or an image too small for LinkedIn. This tool checks the live HTML, then fetches the image instead of trusting the tag.

  • Required Open Graph tags. og:title, og:type, og:image, og:url, plus og:description.
  • Twitter Card. Warns when twitter:card is missing. X still wants that tag even when it falls back to Open Graph for the rest.
  • Image health. Status, content type, real pixel size, HTTPS, redirects, and missing og:image:alt.
  • Truncation. Titles over 60 characters and descriptions over 160 characters.
  • URL mistakes. Relative tags, HTTP images, and og:url that does not match the final page URL.

How a check works

Paste one URL or a short list. We fetch each page, parse og:* and twitter:* from the HTML, then fetch the first og:image to read dimensions. Bookmark a check with ?url=.

Limits, on purpose

We do not render JavaScript, we do not pretend to be Facebook or LinkedIn, and we do not clear those caches. Social crawlers read the first HTML response, same as this tool. Use the official Facebook, LinkedIn or X debuggers when you need them to scrape again.

Frequently asked questions

What does an Open Graph checker test?

It fetches the page, reads og:* and twitter:* tags, fetches the declared og:image, and reports missing tags, relative URLs, small images, and title truncation.

Which Open Graph tags are required?

The protocol requires og:title, og:type, og:image and og:url. Most share cards also need og:description.

What size should og:image be?

1200×630 pixels (about 1.91:1) is the usual default. Below 600×315 the large card often does not show.

Do I still need twitter:card if I have Open Graph tags?

Yes. X falls back to Open Graph for title, description and image, but it still wants twitter:card, usually summary_large_image.

Does this refresh the Facebook or LinkedIn cache?

No. It reads the live HTML and image. Use the Facebook Sharing Debugger or LinkedIn Post Inspector to scrape again.

This tool is free and logs the requesting IP only to enforce the rate limit. URLs you submit are fetched so we can build the report. See the privacy policy.