Stop guessing which CDN powers your competitors. SEOScaleUp's free CDN Detection Tool reveals Cloudflare, Fastly, AWS CloudFront, Akamai & 40+ networks in 2 seconds.
SEO pros and security analysts need to know which content delivery network (CDN) a website uses to optimize performance, troubleshoot latency, or investigate edge caching. Our tool analyzes HTTP headers, DNS records, and edge signatures to identify providers instantly.
Stop manual header digging — get clear, actionable CDN intelligence in one click.
Analyzes `Server`, `Via`, `CF-Ray` headers for 100% accuracy.
Detects anycast IP ranges & proprietary edge signatures.
Precision data, instant results, and competitive insights.
Instant identification of Cloudflare, AWS, Fastly, Akamai, StackPath, and edge providers.
We fetch live HTTP responses to extract Server, CF-Ray, and X-Cache headers.
Matches IP ranges against public CDN egress pools with edge detection.
Track CDN migrations over time — see if a site switched from Cloudflare to Fastly.
Developers can integrate CDN detection via REST API (JSON response).
Identify if CDN includes WAF (Cloudflare, Sucuri, etc) for security audit.
No technical skills needed — just paste URL, click, and get results.
Paste any website domain or full URL.
Our engine scans HTTP response & DNS.
See CDN name, edge location, WAF status.
Copy results or use API for bulk checks.
Understand infrastructure decisions that affect page speed, SEO, and uptime.
Discover if a slow CDN is hurting core web vitals.
Reveal which CDN your top competitors rely on for global reach.
Identify WAF layers & DDoS mitigation from CDN provider.
From marketing agencies to DevSecOps teams.
Enterprise-grade detection, free for everyone.
Real-time checks bypass cached outdated records.
Constantly updated CDN database including new edge providers.
No email, no credit card — unlimited free CDN lookups.
| Feature | SEOScaleUp | Manual Header Check | Expensive Tools ($99+) |
|---|---|---|---|
| CDN detection speed | ✓ <2 sec | ✗ 30+ sec | ✓ 3-5 sec |
| # of CDNs recognized | ✓ 45+ | ~ 12 | ✓ 40+ |
| Free tier | ✓ Unlimited | ✗ N/A | ✗ Limited |
| WAF detection included | ✓ Yes | ✗ Manual | ~ Partial |
| API access | ✓ REST | ✗ | ✓ $ extra |
| Historical changes | ✓ Free | ✗ | ✓ Paid only |
| Edge location mapping | ✓ | ✗ | ✓ |
| No signup required | ✓ | ✓ | ✗ |
| Bulk domain check | ~ coming soon | ✗ | ✓ |
Join 12,000+ SEOs, agencies, and developers who trust SEOScaleUp for CDN detection.
All-in-one SEO toolkit to scale your rankings