Open Graph Checker

An Open Graph checker reads the og: and twitter: tags in a page and shows what social and chat apps will use for the title, description and image. It flags missing or weak values.

This tool fetches the address you enter once, from our server, and reports what a crawler would receive. The URL is not stored; only a short-lived rate-limit counter is kept. Results show the page at the moment of the check and can differ from what a logged-in browser or a bot with different headers sees.

How to read the result and act on it

Check that og:title, og:description, og:image and og:url are present and make sense as a shared card. The title should be readable at a short length, the description should entice a click, and the image should be an absolute URL that loads publicly. Aim for a landscape image around 1200 by 630 pixels so it is not cropped badly. Add twitter:card, usually summary_large_image, so X renders the large preview. If values are missing, set them in your CMS or SEO plugin and retest. After changing an image, the old preview may persist in social caches, so use each platform's debugger or sharing tool to force a refresh.

Common mistakes to avoid

Frequent problems include relative image paths, images behind a login or blocked by robots.txt, and files too small to be used as a large card. Reusing the same generic logo for every page makes shared links look identical and reduces clicks. Setting og:url to a different address than the canonical confuses how counts and previews are grouped. Putting the tags in the body instead of the head can stop scrapers reading them. Another mistake is changing the image file in place with the same filename, which keeps the cached version alive. Use a new filename or clear the cache with the platform's tool.

Which Open Graph tags are essential?

og:title, og:description, og:image and og:url cover most cases.

Why does my shared link show an old image?

Platforms cache previews. Use each platform's debugger to refresh.

How do I fix a wrong image in a link preview?

Update og:image on the page, make sure the URL is public and absolute, then re-scrape it with the platform's debugger, such as Facebook's Sharing Debugger or LinkedIn's Post Inspector. Caches keep the old image until refreshed.

What size should an Open Graph image be?

A common recommendation is about 1200 by 630 pixels at a 1.91 to 1 ratio, kept under a few megabytes. That size displays as a large card on most platforms without awkward cropping. Keep important text and faces away from the edges so a crop does not cut them off.

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