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A comment on What happened on the Internet during the Facebook outage. Parent comment

Re:What happened on the Internet during the Facebook outage by jefftk on Friday October 08, 2021 @03:29PM (#28803148)
It's not necessarily spoofing. During the outage you could still open the FB app, at least on Android, and it would show you cached content. By default it opens links in the FB Browser, which was probably still working during the outage. So it shouldn't go to zero.

Example in-app browser UA, pulled from my server logs just now: Mozilla/5.0 (Linux; Android 11; Pixel 3 XL Build/RQ3A.210905.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/93.0.4577.82 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/337.0.0.32.118;]

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Re:What happened on the Internet during the Facebook outage by cldellow on Friday October 08, 2021 @05:35PM (#28804428)
I don't think the user agents under discussion are the UAs sent by the Facebook browser, but rather the ones sent by Facebook's crawlers.

The Facebook browser is distributed across all of humanity, so it'd be expected to have legitimate activity during the outage.

The Facebook crawlers, however, are presumably all behind the blackholed Facebook network, so any request purporting to be from a Facebook crawler is likely up to no good.

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