[Nextgrid]

I’m assuming all these websites point to Google web frontend servers and for some reason it’s no longer able to map the Host header to the proper backend to proxy to.

[jeffbee]

This is a sort of repetitive outage for Google. They've wiped out the GSLB configs before. A year ago there was also that big outage where they blanked out the whole Gmail delivery configs and started rejecting all mails (even for gmail.com). Config safety is not their strong suit.

[profmonocle]

For what it's worth, not only HTTP(S) load balancers went down. We have a couple TCP proxy load balancers that went down too.

[notreallyserio]

I was seeing regular levels of health checks throughout the entire outage, so they still had configs in place. That seems plausible.