Free SEO, AI and GEO toolOpen Graph checker
Enter a page's address: the checker reads its Open Graph and Twitter tags, checks the sharing image and shows how the page looks on LinkedIn, Facebook, X, WhatsApp and Slack. If a tag is missing, it gives you the code to add. These tags are for sharing; they have no proven role in AI answers.
How to use the checker
- Paste the address of the page you want to share.
- Check the tags and the image, then the previews network by network.
- Add the suggested code if any tags are missing, then refresh the preview in each network's tool.
The tags to know
The Open Graph protocol requires four on every page: og:title, the title; og:type, the type of content; og:image, the image; og:url, the reference address. Add og:description for the accompanying text and twitter:card to choose the preview format on X.
Which sharing image?
Facebook recommends at least 1,200 × 630 pixels, with a ratio close to 1.91:1, and rejects files over 8 MB. Below 600 × 315 pixels, the image is shown small. Choose a visual that reads well as a thumbnail: little text, a clear subject, in JPEG or PNG.
Open Graph and AI
These tags are first and foremost for sharing. They have no proven role in AI answers, and the checker doesn't claim otherwise. Google may, however, read og:title when it chooses the title shown in its results: an og:title consistent with your title does no harm.
Frequently asked questions: Open Graph, SEO, AI and GEO
What is Open Graph?
It's a protocol launched by Facebook in 2010: a few tags placed in a page's code describe its title, its image and its address, so that social networks and messaging apps show a polished preview of it.
Is Open Graph free?
Yes. It's an open protocol: you just add the tags to your pages' code. Most SEO plugins, such as Yoast SEO or Rank Math, do it for you.
What does OG mean in SEO?
OG stands for Open Graph. These tags aren't a ranking factor; they improve how your pages look when they're shared, and therefore the clicks that come from them.
Why is LinkedIn still showing the old image?
LinkedIn keeps a page's preview in memory. After a fix, paste the address into its Post Inspector to make it read the page again; Facebook offers the same service with its Sharing Debugger.
Do I need Twitter tags as well?
Only one is really useful: twitter:card, which chooses the preview format on X. For the title, description and image, Twitter's documentation says it falls back on the Open Graph tags when its own are missing.
