Testomato can check some basics [metadata](https://developer.mozilla.org/en-US/docs/Glossary/Metadata) or semantic tags inside HTML `` tag. ![Twitter Semantic](/img/checks/semantic-checks.png) ### Page title The [title tag](https://developer.mozilla.org/en-US/docs/Web/HTML/Element/title) is main and most important anchor for SEO. Check `Page ` allows you to check exact HTML `<title>` tag content: ```html <title>content... ``` ### Meta description ```html ``` ### The Open Graph tags The [Open Graph protocol](https://ogp.me/) enables any web page to become a rich object in a social graph. For instance, this is used on Facebook to allow any web page to have the same functionality as any other object on Facebook. ```html ``` and without `og` prefixes ```html ``` ### Twitter Cards tags Testomato allows you to check [Twitter Card](https://developer.twitter.com/en/docs/twitter-for-websites/cards/overview/abouts-cards) markup meta: ![Twitter Semantic](/img/checks/semantic-checks-twitter.png) Currently the following markups are supported: ```html ``` Get more information about [Twitter Cards markup](https://developer.twitter.com/en/docs/twitter-for-websites/cards/overview/markup).