4 posts
Ending the "silent drop": how Dynamic Path MTU Discovery makes the Cloudflare One Client more resilient 2026-03-05 Koko Uko Rhett Griggs Todd Murray You’ve likely seen this support ticket countless times: a user’s Internet connection that worked just fine a moment ago for Slack…
Cloudflare outage on February 20, 2026 2026-02-21 David Tuber Dzevad Trumic On February 20, 2026, at 17:48 UTC, Cloudflare experienced a service outage when a subset of customers who use Cloudflare’s Bring Your Own IP (BYOIP) service saw their routes to the Internet withdrawn vi…
Route leak incident on January 22, 2026 2026-01-23 Bryton Herdes Tom Strickx On January 22, 2026, an automated routing policy configuration error caused us to leak some Border Gateway Protocol (BGP) prefixes unintentionally from a router at our data center in Miami, Florida. Whi…
What came first: the CNAME or the A record? 2026-01-14 Sebastiaan Neuteboom On January 8, 2026, a routine update to 1.1.1.1 aimed at reducing memory usage accidentally triggered a wave of DNS resolution failures for users across the Internet. The root cause wasn't an attack or a…