Content Delivery Network Blog

What Is SRT? Secure Reliable Transport for Live Video

SRT (Secure Reliable Transport) is an open-source, UDP-based protocol for moving live video across unpredictable ...

What Is a PoP? CDN Nodes, Edge Servers and Points of Presence A CDN PoP 40 km from your users can lose to one 400 km ...

RTMP (Real-Time Messaging Protocol) is a TCP-based streaming protocol, originally built by Macromedia for Flash, that ...

An image CDN should serve AVIF to the roughly 93–95% of browsers that decode it as of 2026, WebP to most of the rest, ...

A CDN cache key is the tuple the edge hashes to decide hit or miss, and on most platforms the default is scheme, host, ...

Netflix CDN Explained: Open Connect and ISP Caches 2026 The Netflix CDN moves the overwhelming majority of its bytes ...

What Is a Content Delivery Network (CDN)? How It Works in 2026 A content delivery network is a distributed set of edge ...

TLS 1.3 removes exactly one round trip from a full handshake compared with TLS 1.2, and 0-RTT removes one more on ...

Evaluated February 2026. Two mechanisms decide which edge serves a request, and they fail on completely different ...

A working cdn log delivery pipeline takes about 40 minutes to stand up on an existing object storage bucket plus one ...