[mnordhoff]

"Because of this Cloudflare’s 1.1.1.1 DNS resolver could no longer respond to queries asking for the IP address of facebook.com or instagram.com."

The instagram.com zone itself uses a third-party DNS service and didn't go down. (But e.g. www.instagram.com is a CNAME to a zone on FB DNS.)

[yftsui]

That’s pretty much why during the downtime visit instagram.com showed a 503 from AWS instead.

[mschuster91]

Wonder why they're still using AWS given that FB operates its own data centers...

[mnordhoff]

No idea. I'd speculate that it's some kind of historical reasons from before FB acquired IG.

[hinkley]

Could be that nobody thought to ask. If it was an oversight that'll be rectified shortly, now that everyone in the company knows about it.

[hansel_der]

probably a testimony to the cost of aws lock-in

[jgrahamc]

Thanks. I'll correct that.