Understanding how Facebook disappeared from the InternetThis post is also available in 简体中文, Français, Deutsch, Italiano, 日本語, 한국어, Português, Español, Рyсский and 繁體中文. The Internet - A Network of Networks “Facebook can't be down, can it?”, we thought, for a second. Today at 15:51 UTC, we opened an internal incident entitled "Facebook DNS lookup returning SERVFAIL" because we were worried that something was wrong with our DNS resolver 1.1.1.1. But as
