问题
Quoted from here: https://www.ampproject.org/docs/get_started/about-amp.html
AMP is a way to build web pages for static content that render fast. AMP in action consists of three different parts:
- AMP HTML
- AMP JS
- AMP CDN
AMP HTML is HTML with some restrictions for reliable performance and some extensions for building rich content beyond basic HTML. The AMP JS library ensures the fast rendering of AMP HTML pages. The AMP CDN (optionally) delivers the AMP HTML pages.
Quoted from here: https://www.ampproject.org/how-it-works/
Google is offering a service that delivers AMP HTML documents given their URL through its CDN.
Where can I find this CDN service, so I can test it? I googled a lot, but I couldn't find any information.
回答1:
To use the AMP project CDN, you can access via a URL of the form:
https://cdn.ampproject.org/c/s/<origin-domain>/<path>
Note that the /s portion is optional and signals a secure origin, so if the origin isn't served over https, then you would use:
https://cdn.ampproject.org/c/<origin-domain>/<path>
So, if we take the following URL that has an AMP equivalent: http://www.theguardian.com/childrens-books-site/2016/jan/12/sugar-tax-andy-mulligan-liquidator, looking at the source, we see the following link:
<link rel="amphtml" href="https://amp.theguardian.com/childrens-books-site/2016/jan/12/sugar-tax-andy-mulligan-liquidator">
So, we can form a CDN URL for that AMP document as:
https://cdn.ampproject.org/c/s/amp.theguardian.com/childrens-books-site/2016/jan/12/sugar-tax-andy-mulligan-liquidator
Source: https://github.com/ampproject/amphtml/blob/master/src/service/cid-impl.js#L201
回答2:
The CDN URL will change in 2017: https://developers.googleblog.com/2016/12/amp-cache-updates.html
Example from above:
https://amp-theguardian-com.cdn.ampproject.org/c/s/amp.theguardian.com/childrens-books-site/2016/jan/12/sugar-tax-andy-mulligan-liquidator
回答3:
For a text example with http:
http://example.com/blog/index.html
Cache URL is:
https://example-com.cdn.ampproject.org/c/example.com/blog/index.html
With https:
https://example.com/blog/index.html
Cache URL is (notice the /s/):
https://example-com.cdn.ampproject.org/c/s/example.com/blog/index.html
For an image, replace the /c/ with /i/, for example,
http://example.com/blog/picture.jpeg
Cache URL is:
https://example-com.cdn.ampproject.org/i/s/example.com/blog/picture.jpeg
More details on cache URL name construction and name construction tools can be found here: https://developers.google.com/amp/cache/overview
回答4:
If you visit the Using the Google AMP Cache page in the AMP developer documentation then there is a textbox where you can enter your original URL and it will show you the corresponding AMP cache URL.
来源：https://stackoverflow.com/questions/34720444/how-can-i-test-the-cdn-of-googles-amp-project