Google AMP Tester
Reports whether the page is itself an AMP page or declares an amphtml alternate.
What this tool checks
AMP status
Informational: reports whether the page is itself an AMP page or declares a <link rel="amphtml"> alternate.
Why it matters: Google no longer requires AMP for any search feature, so this is purely informational — most modern sites have no AMP version and that is fine.
If it fails: AMP is optional. Only add an amphtml alternate if your platform already supports it and you have a reason to.
Source: developers.google.com/search/docs/appearance/google-news/amp-in-google-news
Related tools
- Deprecated HTML Tags CheckerScans for obsolete HTML elements like <center>, <font> and <marquee>.
- GZIP Compression TestChecks the HTML response is served with gzip, brotli or deflate compression.
- Image Optimization CheckerChecks images declare width/height and use lazy-loading below the fold.
- Inline CSS CheckerCounts elements using a style="" attribute instead of a stylesheet.
- Webpage File Size CheckerTotal download size of the rendered page, broken down by resource type.
- Webpage JavaScript Error CheckerLoads the page in a real browser and reports any JavaScript errors thrown.