Content Delivery Network Blog

Best Image Format for the Web: JPEG, PNG, WebP, AVIF, SVG

Evaluated November 2026: the best image format for web photos is AVIF with a JPEG fallback, or WebP when encode time ...

There is no technical difference in JPEG vs JPG. Both extensions label the same format, defined by ISO/IEC 10918-1 ...

A checksum is a short, fixed-length value computed from a file's bytes so that any change to those bytes produces a ...

The short answer to what is IPv6: Internet Protocol version 6 is the network-layer protocol that replaces IPv4's 32-bit ...

The short answer to what is a port: a network port is a 16-bit number, from 0 to 65535, carried in every TCP and UDP ...

DNS propagation is the window after a record change during which recursive resolvers, operating system caches and ...

DNS records are typed entries in an authoritative zone that map a name to data. An A record returns a 32-bit IPv4 ...

A CNAME record (canonical name record) is a DNS record that makes one hostname an alias of another. When a resolver ...

The short answer to what is a load balancer: it is a network component that distributes incoming connections or ...

Round-trip time (RTT) is the time between a sender transmitting a packet and receiving the reply that acknowledges it, ...