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Latest comment: 9 years ago by Mattflaschen (WMF) in topic Google data compression proxies

Google data compression proxies

It looks like Google is operating what are effectively open proxy farms for Chrome mobile users: these do not seem to be on the XFF list. For an example of such a proxy, do a PTR lookup on 66.249.93.191. I cannot find any list of these on the web, or any way of deriving that list other than brute-force techniques. See [1], [2] and this talk page for more details. Given that Chrome is a major browser, this could potentially become a major problem if not fixed. -- The Anome (talk) 15:56, 16 November 2014 (UTC)

Update: I've blocked 66.249.93.0/24 on enwiki, as the entire /24 appears to be nothing but these proxies. -- The Anome (talk) 19:55, 16 November 2014 (UTC)
@The Anome: Relevant notes: "Secure connections (HTTPS) are routed directly from your mobile device to the destination, bypassing the compression proxy." So a lot of logged in traffic will not be affected. Erik Moeller (WMF) knows some people at Google. Maybe those contacts can help us get a list of the proxy IP ranges. Superm401 | Talk 06:25, 3 December 2014 (UTC)
Thanks -- that's great. Do you know if any progress has been made on this? -- The Anome (talk) 14:16, 13 January 2015 (UTC)
@The Anome: I haven't heard anything or contacted him further about this (I think I only pinged him above), so probably not. It may make sense to file a bug to track the issue. Mattflaschen (WMF) (talk) 05:08, 14 January 2015 (UTC)