FAQ
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What gets cached?
If an AMP page is valid and is requested
(so the Google AMP Cache is aware of it),
it will get cached.
Any resources in AMP pages, including AMP images, also get cached.
Can I stop content from being cached?
No. By using AMP,
content producers are making the content in AMP files available
to be cached by third parties.
For example, Google products use the Google AMP Cache
to serve AMP content as fast as possible.
Can the cache be crawled?
No.
The Google AMP Cache is roboted to crawlers.
We recommend that search engines process cache links according to the
guidelines for crawling Google AMP Cache URLs.
For more information,
see robots.txt.
Are there size limits on resources?
Yes, the Google AMP Cache does not fetch any resources (i.e., HTML, images, fonts) that are
larger than 12 MB. In these cases, the Google AMP Cache returns a 404 error.
How can I identify crawl requests by the Google AMP Cache?
You can use reverse DNS lookup to identify requests initiated by the AMP cache as described in the
verifying GoogleBot guide.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2023年08月30日 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2023年08月30日 UTC."],[],["Valid AMP pages and their resources, including images, are automatically cached when requested. Content producers cannot prevent caching when using AMP. The Google AMP Cache, which is not crawlable, does not fetch resources larger than 12MB, returning a 404 error in such cases. Requests from the AMP cache can be identified through reverse DNS lookups, similar to verifying GoogleBot. Third parties are allowed to cache AMP content.\n"]]