How do I check my Open Graph tags?
Paste your page's HTML head here, or type the tags, and the tool shows the link card plus warnings for missing or oversized values. A good card has an og:title under about 70 characters, a 1200 x 630 pixel og:image, and an absolute og:url.
- Choose Paste page HTML and paste the source of your page, or type the values directly.
- Look at the large and small card previews.
- Fix anything marked Fix or Check in the list.
- Copy the generated tags into your page's head.
- After publishing, re-scrape the URL in each platform's own debugger so it drops its cached card.
Examples
Minimal tag set
Result
<meta property="og:title" content="Free UTM Builder"> <meta property="og:description" content="Build clean UTM links."> <meta property="og:url" content="https://example.com/utm-builder/"> <meta property="og:image" content="https://example.com/share.png"> <meta name="twitter:card" content="summary_large_image">
Frequently asked questions
What size should an og:image be?
1200 x 630 pixels (a 1.91 to 1 ratio) works for large cards on most platforms. Keep text away from the edges, since some platforms crop.
Why does my old image still show after I changed it?
Platforms cache link cards. Use the platform's own sharing debugger or post inspector to request a fresh scrape.
Can this tool fetch my live page?
No. Browsers block one site from reading another site's HTML, and this tool never routes your URL through a server. Paste the HTML from View Source instead.
Does X (Twitter) use Open Graph tags?
X reads its own twitter: tags first and falls back to Open Graph for title, description and image. A twitter:card tag sets the card size.