Guides, tutorials, and references for every part of CDNShark — edge delivery, pull zones, DNS, cache controls, and more.
TTL (Time To Live) controls how long resolvers cache your DNS record. Lower TTL (e.g. 60 seconds) means faster propagation of changes but more DNS queries. Higher TTL (e.g. 3600 seconds) reduces query load. Reduce TTL before planned changes and restore it after propagation.