Free toolsOpen Graph preview
Open Graph & Twitter Card preview
Check how your course landing page, lesson URL, or blog post will look when someone shares the link on social apps—same tags power previews in Slack, iMessage, and many LMS feeds.
Many sites block server-side fetches. If preview fails, use your browser's view-source or devtools on the public URL, or validate with Meta's sharing debugger.
Frequently asked questions
- What are Open Graph and Twitter Card tags?
- They are HTML meta tags (often og:title, og:image, twitter:card) that apps use to build link previews when someone shares a URL. They do not replace your page content for SEO, but they shape how the link looks in chat and social feeds.
- Why did the fetch fail for my URL?
- Some sites block non-browser or unknown user agents, require cookies, or return non-HTML. This tool uses a simple server fetch—try view-source on the page, your CMS’s SEO panel, or Meta’s sharing debugger instead.
- Is this an official Facebook or Twitter validator?
- No. It is a quick check for educators and creators. For authoritative cache refresh and validation, use each platform’s official tools when available.
- Do you store URLs I check?
- We do not store them for this feature beyond what normal server logs might retain. Use only public URLs you are allowed to fetch.
- How does this help course pages?
- A clear title, description, and image in previews makes course and lesson links more trustworthy when shared in email, Slack, or community posts—before someone even clicks through.