From the NordicCDN blog
Performance, caching, security and the craft of running a fast website or webshop.
GeoDNS vs anycast: two ways to send users to the nearest server
Two technologies promise the same thing — send each visitor to a nearby server — but they decide at different moments, and one of them has quietly got less accurate over the last few years.
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DNS explained: how a domain name becomes a website
You type a name, a website appears. In between, four separate servers get consulted in under 50 milliseconds. Here is the journey, and why changing a record takes longer than making it.
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What is anycast, and why it makes your CDN faster
Anycast is one of those bits of networking magic that quietly makes the modern web fast. What it is, how it actually works, and the question everyone asks when they first hear about it.
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HTTP/3 and QUIC, explained (and why your site feels faster)
Every few years the web gets a new version of HTTP, and HTTP/3 is the biggest change in a while — it threw out TCP entirely. What that means in plain terms, and why your phone notices more than your desktop.
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