One dead origin region, zero downtime A payments dashboard ran two origins, Virginia and Frankfurt, with the CDN routing each region to its nearest. Clean, until the Frankfurt origin had a database fa…
A one-year TTL the site was afraid to set A fintech app in London capped TTLs at one hour on everything, including hashed JS and CSS bundles like app.4f9a2c.js. The fear was stale code shipping to use…
The bill was in egress, not traffic A backup-storage startup in Denver had a CDN bill that grew faster than its users. Traffic was flat, but origin egress kept climbing. The cause: their origin sat in…
Microcaching a logged-out homepage for 10 seconds A media site in Chicago insisted its homepage couldn't be cached, it changed too often, so every one of 90,000 logged-out visitors per hour hit a PHP …
Perth was being served from Singapore the long way A logistics dashboard had users in Perth complaining of lag while Sydney users were fine. Same CDN, same continent. The edge node was in Singapore, g…
120,000 fake requests a second, absorbed at the edge An iGaming operator serving Jakarta woke up to a layer-7 flood: 120,000 requests per second hammering /api/balance with valid-looking sessions. Ori…
