#25985: Add AMP cache as another domain fronting option with Google -----------------------------------+------------------------ Reporter: twim | Owner: (none) Type: project | Status: new Priority: Medium | Milestone: Component: Obfuscation/Snowflake | Version: Severity: Normal | Resolution: Keywords: | Actual Points: Parent ID: | Points: Reviewer: | Sponsor: -----------------------------------+------------------------
Comment (by twim): Replying to [comment:7 dcf]: Thanks for breaking it down! > Okay yeah, I found these guides to the URL format. The `c` means content (can also be `r` for resource or `i` for image) and the `s` means use TLS. > https://developers.google.com/amp/cache/overview#amp-cache-url-format > https://www.ampbyexample.com/advanced/using_the_google_amp_cache/#amp- cache-url-format Strange, I've seen this docs to find out what /s means, though I took the URL itself from desktop Google search results. This URL (in amper) uses /v/s/ location instead of /c/s/. I don't see any docs on that. Maybe it is a deprecated format, however it doesn't explain why Google still use it then. > https://www.ampproject.org/latest/blog/whats-in-an-amp-url/ > The "*.cdn.ampproject.org" ones they call "AMP Cache" URLs and the "google.com/amp" ones they call "AMP Viewer" URLs. It seems like the "AMP Viewer" URLs are only produced automatically by Google in search result pages. But yeah, in any case, you can domain-front the "AMP Cache" URLs. Also this google.com/amp viewer seems to use iFrames to download content from the CDN anyway. -- Ticket URL: <https://trac.torproject.org/projects/tor/ticket/25985#comment:8> Tor Bug Tracker & Wiki <https://trac.torproject.org/> The Tor Project: anonymity online
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