Open Graph & Twitter Card Checker
Fetch any page and extract its Open Graph and Twitter Card meta tags, the exact title, description, and image WhatsApp, LinkedIn, X, and Slack will render when the link is shared. Fix the preview before your launch post goes out.
How to use
- Enter the page URL.
- Click Run to fetch and parse its meta tags.
- Verify og:title, og:description, and og:image are present and correct.
When a link is pasted into a chat or social feed, the platform fetches the page and reads specific meta tags to build the preview card. Open Graph tags (og:title, og:description, og:image, og:url) are the shared standard. Twitter Cards add twitter:card and can override the OG values on X. Pages without these tags get whatever the platform scrapes as a fallback, often a truncated title, no image, and a preview that quietly kills the click-through rate of the announcement you spent a week writing.
The details that bite in practice: og:image must be an absolute URL (relative paths fail on every platform). The recommended size is 1200x630 for a large card, and images below roughly 200x200 are ignored entirely. The image URL must be publicly reachable, a staging URL behind auth produces an empty card in production shares. Descriptions get truncated around 150-200 characters depending on the platform, so front-load the message.
The most frustrating failure mode is platform-side caching: WhatsApp, LinkedIn, and X cache scraped previews aggressively, so fixing your tags does not fix an already-shared link's preview immediately. This scraper shows the live tags, what a fresh scrape sees now, which is exactly what you need to confirm a fix actually shipped before forcing a re-scrape through each platform's debugger.
Examples
Input: https://github.com
Output: og:title: GitHub · og:image: https://github.githubassets.com/…/campaign-social.png · twitter:card: summary_large_imageInput: https://plain-blog.example/post
Output: og:title present · og:description present · og:image: MISSING, link previews will render without an imageFrequently asked questions
I fixed my OG tags but WhatsApp still shows the old preview, why?
Platform caches. Each platform stores its scraped preview for hours to weeks. This tool confirms your live tags are correct. Then force a refresh via the platform's own debugger (Facebook Sharing Debugger, LinkedIn Post Inspector) or share the URL with a trivial query string appended.
What size should my og:image be?
1200x630 pixels is the safe standard for large cards on every major platform, under ~5 MB, as an absolute HTTPS URL. Keep critical content centered, platforms crop differently.
Do I need both Open Graph and Twitter Card tags?
OG alone covers most platforms including X as a fallback. Adding twitter:card: summary_large_image is worthwhile to get the big-image layout on X. Twitter:title/description are only needed if you want X-specific overrides.
Why does my preview show the wrong page section?
Missing tags make platforms guess, they grab the first heading or image they find. Explicit og: tags on every shareable page take the guessing away.
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