Fastly
CDN
Cloudflare CDN
CDNFastly vs Cloudflare CDN (2026): Which Is Better?
Fastly and Cloudflare CDN are both popular choices, but they serve different needs. Fastly is a CDN with a traditional, manual approach to building, while Cloudflare CDN is a CDN that prioritises developer or designer control.
Below you'll find a side-by-side breakdown of detection signals, AI scores, and technical fingerprints — plus our honest take on which builder wins for different use cases.
How we detect Fastly vs Cloudflare CDN — see our methodology: AI Influence Score calculation, evidence tiers, and fingerprint signal types.
Side-by-Side Comparison
| | |
|---|---|---|
| Category | CDN | CDN |
| AI Score | 10/100 — Unknown | 10/100 — Unknown |
| Detection Signals | 2 patterns | 2 patterns |
| Script Detection | — | — |
| CDN Detection | — | — |
| Header Detection | 2 headers | 2 headers |
| Sites Detected | No data yet | No data yet |
| Best For | Professional websitesTry Fastly → | Professional websitesTry Cloudflare CDN → |
| Official Website | Visit | Visit |
Example Websites
Fastly
CDN
Fastly is a cdn with an AI Score of 10/100 (Unknown). Our detection engine uses 2 signal patterns to identify Fastly-built sites.
Cloudflare CDN
CDN
Cloudflare CDN is a cdn with an AI Score of 10/100 (Unknown). Our detection engine uses 2 signal patterns to identify Cloudflare CDN-built sites.
Platform Overviews
Fastly
Fastly is a high-performance edge cloud platform and content delivery network used primarily by enterprises, media companies, and high-traffic web applications that require low-latency content delivery, real-time streaming, and programmable infrastructure at scale. The platform is widely adopted by technology companies, news publishers, and e-commerce operators that demand granular control over caching and request routing at the network edge. AIWebsiteDetector.com identifies Fastly deployments by analyzing 2 distinct HTTP response headers that Fastly injects into served traffic, providing reliable, server-side signals that remain consistent across the wide variety of site types and configurations built on the platform. These header-based signals make Fastly particularly straightforward to detect programmatically, as they appear regardless of front-end framework or CMS in use, meaning the underlying CDN layer is exposed even when the application stack is otherwise obscured. Fastly operates on a usage-based pricing model with no upfront commitments, positioning it as a premium infrastructure choice that distinguishes it from shared or budget hosting environments — a characteristic that often correlates with high-traffic, performance-critical deployments in detection results.
Cloudflare CDN
Cloudflare CDN is a globally distributed content delivery network used by millions of websites — from small personal projects to large-scale enterprise platforms — to accelerate performance, improve reliability, and mitigate DDoS threats by routing traffic through Cloudflare's edge infrastructure. As one of the most widely deployed CDNs on the internet, it appears across virtually every category of website, making accurate detection both highly relevant and technically straightforward. AIWebsiteDetector.com identifies Cloudflare CDN deployments by analyzing 2 distinct HTTP response headers that Cloudflare consistently injects into traffic passing through its network, providing a reliable and precise fingerprint for detection. These headers are characteristic of Cloudflare's edge servers and remain present regardless of the underlying origin technology or CMS, which contributes to high detection confidence across diverse site types. Cloudflare CDN is available as part of Cloudflare's broader platform, with a free tier accessible to all users and paid plans unlocking advanced performance and security features — making it one of the few enterprise-grade CDN solutions with significant adoption at the hobbyist and small business level. More details about Cloudflare's CDN offering can be found at the official product page: https://www.cloudflare.com/cdn.
Key Differences
- Both Fastly and Cloudflare CDN are classified as CDN tools, making them the most direct competitors in this comparison.
- Fastly scores higher on AI involvement (10/100 vs 10/100 for Cloudflare CDN), meaning it relies more heavily on AI for site generation and content creation.
- Our detection engine identifies Fastly using 2 fingerprint patterns and Cloudflare CDN using 2 patterns — more signals generally means more reliable detection.
Which Should You Choose?
Choose Fastly if…
- You prefer a cdn solution
- You want more manual control over the final output
- Fastly's detection fingerprint of 2 signals means your site is reliably identifiable
Choose Cloudflare CDN if…
- You need a cdn approach
- You prefer traditional building tools with predictable output
- Cloudflare CDN's ecosystem and community better match your team's existing workflow
Our Pick — Based on our detections
Fastly
The most frequently detected cdn in our scan database.
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