Free tools / Social preview inspector
Social preview inspector: check your Open Graph and X card tags
Our social preview inspector reads the Open Graph and X card tags on one page and lays out how a shared link is likely to look on LinkedIn, X and Slack. It flags missing tags and checks the share image with one header request, so an oversized or wrong-type image shows up before anyone shares the link.
We read robots.txt before anything else and follow it, then read your page within eight seconds: up to three redirects, each checked again and each to a public HTTPS address, and at most 1.5 MB. HTTPS websites are supported; other addresses are refused. For the share image we send one header request (HEAD), which downloads no image data.
No email is needed; runs are limited per network and per day, and by the site's daily allowance.
We do not save your website, company name, page content or result. We keep daily totals and hashed network counters to enforce limits. A shared result stays in its link, not on our server.
What we check and why
Open Graph tags
og:title, og:description, og:image and og:url are what link cards read. We show each value, and where one is missing we show the fallback: the title element and the meta description.
X card tags
twitter:card asks X for a layout; summary_large_image gives the large picture. X reads twitter:title, twitter:description and twitter:image, and falls back to Open Graph where they are missing.
The share image
We read its type and size from one header request. We flag an address that is not a full https address, a type other than JPEG, PNG, GIF or WebP, and a file over 5 MB. We recommend 1200 x 630 pixels, about 1.91 to 1, declared with og:image:width and og:image:height.
Card layouts
The previews are our approximations of each network's card. Networks change their designs and keep cached cards, so a link shared before a fix can keep the old card for a while.
Questions
Why does LinkedIn show an old image after I changed it?
LinkedIn keeps a cached preview of each link. Its Post Inspector refreshes the cached preview for an address after you change the tags.
What image size should I use for og:image?
We recommend 1200 x 630 pixels, a ratio of about 1.91 to 1, as a PNG or JPEG under 5 MB. Declare the size with og:image:width and og:image:height, and describe the image with og:image:alt.
Do I need twitter:card if I have Open Graph tags?
Add it. twitter:card is how a page asks X for a card layout. X falls back to Open Graph for the title, description and image.
Want the fix made for you?
Answer Repair completes one agreed source-backed page or fix. Choose Live or Handoff before payment. Due 48 elapsed hours after Ready. Full refund on request within 30 days of delivery.
When you want us to do the work, every offer and its published price is on our offers page. More free checks: the ChatGPT Business Hub readiness check and the search snippet preview, or see all free tools.