SEO

Content Delivery Network (CDN)

By Paul Brock·Updated on 24-04-2026
TL;DR

A CDN is a globally distributed network of edge servers that caches content close to the end user, dramatically reducing load times.

A CDN (Cloudflare, Fastly, Akamai, BunnyCDN) stores copies of your static — and often dynamic — content on hundreds of edge locations worldwide. A visitor from Tokyo then fetches your CSS in Tokyo, not from your Amsterdam server. Effect: TTFB and LCP tumble, server load drops, DDoS protection comes for free.

Example

A Dutch shop expands into Germany and France. Without CDN the site loads in Berlin in 3.2s; with Cloudflare, 1.1s. DE bounce rate halves.

Frequently asked questions

Which CDN to pick?

Small/mid: Cloudflare (generous free tier). Media-heavy: BunnyCDN (cheap, Europe-strong). Enterprise: Fastly or Akamai. For WordPress: often via Cloudflare plugin or hosting-baked.

SEO benefit of a CDN?

Yes, via speed and stability: CWV scores improve, crawl budget is spent more efficiently, server outages are absorbed by edge cache.

Related terms

Further reading

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