SEO tool · Checks live sites
Robots.txt Checker
Test if robots.txt blocks a URL for Googlebot, Bingbot or AI crawlers like GPTBot and ClaudeBot. See the rule that matches and the sitemaps listed.
Open Graph Checker
Preview how a link looks when shared on Facebook, WhatsApp, LinkedIn and X, and check every Open Graph and Twitter Card tag.
Shows the share card people see on Facebook, WhatsApp, LinkedIn and X.
This tool asks our server for public information only. Nothing you enter is stored.
How to use the Open Graph Checker
- Enter the URL of a page.
- Press Check.
- Fix any missing tags and check again.
About this tool
When someone shares your link, social apps build a card from its Open Graph and Twitter Card tags. Enter a URL to see a preview of that card, every og: and twitter: tag on the page, and warnings for missing titles, descriptions or images that are too small.
Frequently asked questions
What image size is best?
1200 × 630 pixels (1.91:1) works on all major apps. Keep the file under 5 MB.
Why does Facebook still show the old image?
Facebook caches previews. After fixing the tags, ask it to scrape the page again in its Sharing Debugger.
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