Skip to Content

DNS TTL, or time to live, is the element of a DNS record that tells the requester how long the record is valid. If the TTL for our DNS record is set to 24 hours, a browser has will continue to use that same value for the next 24 hours regardless of whether the DNS …

Read More about 2 Ways to Check DNS TTL

EDNS stands for Extended DNS. EDNS gives us a mechanism to send DNS data in larger packets over UDP. The most popular implementation of EDNS is DNSSEC. History of EDNS Traditional DNS responses are typically small in size (less than 512 bytes) and fit nicely into a small UDP packet. Sometimes we have to transfer …

Read More about Exploring EDNS with Examples