Postmarks

"Operating hardware in 310 cities in 120 countries means that hardware can break anywhere and anytime. Detecting and managing server failure at scale requires automation. Here's how we automated"

"On 4 October 2023, Cloudflare experienced DNS resolution problems. Some users may have received SERVFAIL DNS responses to valid queries. In this blog, we’re going to talk about what the failure was, why it occurred, and what we’re doing to make sure this doesn’t happen again"