Heading structure checker

Title tag checkerCheck a page's title tag length, duplicates and how it looks in search. Meta tags checkerEvery meta tag on a page, checked. Meta description checkerIs the meta description there, and is it the right length? Meta refresh checkerFind meta refresh redirects that search engines dislike. Meta viewport checkerIs the page set up for phones? Meta charset checkerCheck the declared character set. Language attribute checkerCheck the page language and hreflang tags. Hreflang checkerList and check hreflang alternate-language tags.