How we rank: CDN providers
The Score (0–100) is a weighted sum of the factors below. Each factor is the weighted average of its metrics; each metric is calculated from one published fact. Missing facts score zero, and a service is ranked only when enough of its Score is backed by facts.
A service is ranked only when at least 70% of its Score is backed by verified facts.
← Best CDN Providers 2026: Content Delivery Networks Compared
Price 25%
The pay-as-you-go price per GB of delivered traffic in North America and Europe at the lowest volume tier, as written on the official pricing page: $0 scores 100, $0.10 or more scores 0 (weight 3). We take only a per-GB price that is printed on the page: plan bundles, per-TB overages and commit deals are not converted, and a price shown only by a script or in a currency chosen by our visitor location stays empty. Providers that sell flat-rate plans with unmetered traffic have no per-GB price, so this fact stays empty for them. Also a permanent free plan or free monthly traffic allowance (weight 2); a trial or one-time credit does not count.
| Metric | Rule |
|---|---|
| Price per GB, North America and Europe, lowest tier | Linear from 0 (100) to 0.1 (0) — lower is better |
| Free plan or free monthly traffic | Yes = 100, No = 0 |
Network and performance 25%
The number of points of presence, edge nodes or data centre cities the provider names, on a logarithmic scale up to 500 (weight 3); providers count PoPs differently, so treat the number as their own claim. Also HTTP/3 (weight 1), delivery over IPv6 (weight 1) and built-in image optimisation such as resizing or WebP/AVIF conversion (weight 1).
| Metric | Rule |
|---|---|
| Points of presence (provider's count) | Logarithmic, full score at 500 |
| HTTP/3 | Yes = 100, No = 0 |
| IPv6 | Yes = 100, No = 0 |
| Image optimisation | Yes = 100, No = 0 |
Security 20%
DDoS protection for sites behind the CDN (weight 2), a web application firewall or managed WAF rules (weight 2) and free TLS certificates for your domains (weight 2). A fact shows that the provider offers the feature; on some providers it is part of a paid plan or add-on.
| Metric | Rule |
|---|---|
| DDoS protection | Yes = 100, No = 0 |
| Web application firewall (WAF) | Yes = 100, No = 0 |
| Free TLS certificates | Yes = 100, No = 0 |
Developer control 15%
Edge compute, meaning your own code running on the CDN's servers (weight 1), real-time access to request logs or log streaming (weight 1) and cache purge that the provider describes as instant or completed within seconds (weight 1).
| Metric | Rule |
|---|---|
| Edge compute | Yes = 100, No = 0 |
| Real-time logs | Yes = 100, No = 0 |
| Instant cache purge | Yes = 100, No = 0 |
Reliability and trust 15%
The uptime percentage in the provider's published SLA, on a straight line from 99% (0 points) to 100% (100 points) (weight 2); an independent SOC 2 audit or ISO 27001 certification (weight 1); a public status page (weight 1); and how long the company has been running: 20 years or more scores 100 (weight 1).
| Metric | Rule |
|---|---|
| Uptime SLA | Linear from 99 (0) to 100 (100) |
| SOC 2 or ISO 27001 | Yes = 100, No = 0 |
| Public status page | Yes = 100, No = 0 |
| Founded | Full score at 20+ years |