🔬SEO Checker

Check any URL’s meta tags, Open Graph and Twitter cards

About the SEO Checker

SEO Checker fetches any public URL and analyzes its on-page SEO: title and meta description, canonical, robots, viewport, Open Graph and Twitter Card tags, favicon, headings and structured data — with a live social-preview card.

It is the fastest way to confirm a page is set up correctly before and after publishing. The page is fetched server-side so it works on any site, and nothing you check is stored.

Common use cases

Verifying your meta tags and Open Graph before a launch
Debugging why a link shows no image when shared on social media
Auditing competitors’ on-page SEO
Checking that important pages are indexable (no accidental noindex)

How to use the SEO Checker

Paste the full URL you want to check.
Click Analyze.
Review the pass/warn/fail report and the social-preview card.
Fix any missing or out-of-range tags and re-check.

Frequently asked questions

Why does it need to fetch the page on a server?

Browsers block reading another site’s HTML (CORS), so the page is fetched server-side and only the SEO tags are returned to you.

What does it check?

Title, meta description, canonical, robots, viewport, charset, lang, H1s, Open Graph, Twitter Card, favicon and JSON-LD structured data.

What are the ideal title and description lengths?

Roughly 30–60 characters for the title and 120–160 for the description so they aren’t truncated in search results.

Does it work on any website?

It works on any public page that returns HTML. Pages behind a login or that block bots may not be readable.