The best CDN in 2026 is Cloudflare for the widest free-tier network and bundled security, Bunny for the best price-to-performance, and Fastly for programmable edge with instant purging. For AWS-native stacks, CloudFront is the default. Pick by whether you optimise for free reach, cost, or edge control.
Key takeaway: Cloudflare for the widest network and a real free tier, Bunny for price-to-performance, Fastly for programmable edge and instant purging, CloudFront for AWS-native stacks. Match the CDN to whether you value reach, cost, or control.
A CDN is the cheapest performance win most sites never fully use. Here is how the main options compare.
Cloudflare
The widest network with a genuinely useful free tier and security (WAF, DDoS) bundled in. Best for most sites that want fast global delivery at no cost to start. Watch: advanced configuration and support tiers get complex, and the free plan has limits.
Bunny
Cheap, fast, with built-in image optimisation and a clean dashboard, often the best price-to-performance. Best for media-heavy sites that want Cloudflare-class speed on a smaller bill. Watch: the network is smaller than Cloudflare's, though still strong.
Fastly
A developer-grade CDN with programmable edge (VCL and Compute) and instant cache purging. Best for engineering teams that need fine cache control and edge logic. Watch: it is powerful and priced for teams that use that power.
AWS CloudFront
Deep AWS integration and pay-as-you-go pricing, the natural choice when your origin is already on AWS. Best for AWS-native stacks. Watch: developer experience and pricing transparency lag the specialists.
How to choose
Optimise for one axis. Want free global reach and security? Cloudflare. Want the lowest bill for media? Bunny. Want programmable edge and instant purge? Fastly. Already on AWS? CloudFront. Most sites are well served by Cloudflare or Bunny.
FAQ
What is the cheapest CDN?
Bunny is usually the cheapest for the performance you get, and Cloudflare is effectively free to start on its generous free tier. The cheapest choice depends on traffic volume and whether you need security features bundled.
What is the fastest CDN?
It varies by region, but Cloudflare, Bunny, and Fastly all deliver top-tier global speed. Cloudflare has the widest network, Bunny competes closely on price-to-speed, and Fastly excels at edge control.
Is there a good free CDN?
Yes. Cloudflare's free tier is the standard answer, offering global delivery plus basic security at no cost, which is enough for many sites before they need a paid plan.
What is the best CDN for images?
Bunny, for built-in image optimisation and low cost, is a strong pick for media-heavy sites. Cloudflare also offers image resizing and optimisation on paid plans.
Related: Cloudflare alternatives for the wider field, and the performance guides for Core Web Vitals.