Bing AMP Cache
Bing AMP Cache serves cached copies of valid AMP (Accelerated Mobile Pages) content published to allow Bing to provide faster mobile experiences to Bing users.
To take advantage of Bing AMP Cache, any AMP web URL must be discovered, selected, crawled and validated by Bing. To learn more about AMP visit the AMP Project Page.
Make AMP web pages discovered
Websites must follow AMP discovery standards, typically by adding <link amphtml> tag in the <head> section of each web page linking to the AMP URL to inform Bing about their AMP content.
Example: <link rel="amphtml" href="https://www.example.com/url/to/amp/document.html">
Make your AMP web pages selected
Websites must match a high-quality threshold required by Bing to have your AMP content selected and considered for the AMP Cache. Like for typically HTML, bing likes unique, quality content. Websites which replicate content, redirect users quickly, or provide little depth often don’t fare well in our results and in our Bing AMP cache.
Make your AMP web pages crawled
Websites must allow bingbot to fetch the AMP web pages and AMP linked resources (images, fonts etc.) to allow Bing to cache the content. Webmasters should verify they don’t robots.txt disallow access to the content and set appropriate crawl quota by reviewing and boosting if necessary Bing Crawl quotas.
Make your AMP web pages validated
Websites must publish valid AMP following AMP validation standards. Bing will verify Bing AMP Cache content to make sure Bing Users can only see content meeting AMP requirements.
Websites must also allow cross-origin resource sharing (CORS) for bing-amp.com domain as they have already authorized the CORS sharing for the ampproject.org domain.