Meta Tag Checker
Paste any page URL and see its title, description, canonical, robots and social tags, how it may look in Google and when shared, and what to fix.
What the checker reviews
Search snippet
Title tag, meta description and canonical: the tags that decide how a page appears in Google and which address gets the credit.
Indexing rules
Robots meta tag and X-Robots-Tag header, so you can see at once whether a page may be indexed and whether its links are followed.
Sharing and structure
Open Graph and Twitter card tags, viewport, language, favicon, hreflang and the H1 heading.
Frequently asked questions
Meta tags are small pieces of information in the head of a web page that are not shown on the page itself. They tell search engines and social networks what the page is about: its title, a short description, whether it may be indexed, which address is the main one, and how it should look when shared.
Aim for roughly 30 to 60 characters. Google measures width in pixels rather than characters, so the exact cut-off varies, but titles over about 60 characters are often shortened with an ellipsis. Put the words people search for near the front.
Between about 70 and 160 characters. It is not a direct ranking factor, but a clear description can make more people click your result. Google may also replace it with text from the page when it thinks that fits the search better.
The canonical tag names the main address of a page. When the same content is reachable at several addresses (with and without tracking parameters, for example), it tells search engines which one to index and credit with the links.
noindex asks search engines to keep the page out of their results. nofollow asks them not to follow, or pass credit through, the links on the page. They can be set in a robots meta tag or in an X-Robots-Tag header, and this checker reads both. A noindex page is not a good place for a backlink.
They control the preview that appears when someone shares the page on Facebook, LinkedIn, WhatsApp or X (Twitter): the title, description and image. If they are missing, those networks guess, and the preview is often poor.
Like a basic crawler, it reads the HTML the server sends. Tags that a page only adds after loading in a browser will not appear. For SEO it is safest to include the important tags in the HTML itself.