• Network & DNS

CDN & WAF Detector

Detect the CDN or Web Application Firewall protecting any website. Identify Cloudflare, Akamai, AWS, and more.

Domain or URL only — e.g. example.com or https://example.com/page → checks example.com

• About this tool

What is CDN & WAF Detector?

Detect which CDN or Web Application Firewall (WAF) a website uses. Identifies Cloudflare, Akamai, Fastly, AWS CloudFront, and 20+ other providers.

cdn detectorwaf detectorcloudflare detectorweb application firewall checkercdn finder tool

• FAQ

Frequently asked questions

What is a CDN?

A Content Delivery Network (CDN) caches and serves content from servers close to the user, improving load times and reducing origin server load.

What is a WAF?

A Web Application Firewall (WAF) filters and monitors HTTP traffic to protect web applications from attacks like SQL injection and XSS.

How does CDN detection work?

We fingerprint response headers — e.g. cf-ray (Cloudflare), x-vercel-id (Vercel), x-served-by cache-* (Fastly), and x-amz-cf-id (AWS CloudFront). AWS WAF alone rarely exposes headers on allowed responses.

Why should I know if a site uses a WAF?

WAF presence indicates the site invests in active security controls and helps set expectations during penetration testing or API integration.

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