Free Tool
Free Open Graph
Checker & Preview
See the link preview your page really produces — on X, LinkedIn, Facebook, Slack, and Discord.
Every tag read live from the rendered page, every problem explained.
Open Graph Checker
Read Live, Not From Cache
Rendered, not fetched
The page loads in real Chrome and the tags are read after JavaScript runs, so framework-injected tags show up exactly as they exist.
Every platform at once
One check covers X, LinkedIn, Facebook, Slack, and Discord — each drawn with the fallback chain that platform actually uses.
Problems, not just tags
Missing images, relative URLs, wrong aspect ratios, and truncated titles are called out with the reason they matter.
Frequently Asked Questions
What is an Open Graph checker?
It reads the Open Graph and Twitter card tags in a page's HTML and shows you the link preview each platform will build from them. Paste a URL and you see the card as X, LinkedIn, Facebook, Slack, and Discord would render it, plus every tag that is missing, malformed, or the wrong size.
Why does my link preview not update after I changed the tags?
Every platform caches the card it scraped the first time a link was shared. This tool always reads the page live, so it shows your current tags — but X, Facebook, and LinkedIn will keep serving the old card until their cache expires or you re-scrape the URL in their own debugger.
What size should an og:image be?
1200×630 pixels is the safe size: it is the aspect ratio (1.91:1) that large-image cards are cropped to on every major platform. Declare og:image:width and og:image:height alongside it so crawlers can lay the card out before the image finishes downloading, and serve the image over https — several platforms silently drop insecure images.
Does this work on pages that render their tags with JavaScript?
Yes. The page is loaded in a real Chrome browser and the tags are read after JavaScript has run, so tags injected by a single-page app are visible here. Be aware that most social crawlers do not execute JavaScript — if a tag only exists after hydration, this tool will see it and the crawler will not.
Can I check Open Graph tags from my own code?
Yes — this tool runs on the Screenshotty API, which returns the fully rendered HTML of any page alongside the screenshot. Sign up for a free API key (100 renders/month) and parse the tags yourself in any language.