CDN / DDoS protection
This check determines whether the site uses a Content Delivery Network (CDN) by analysing HTTP response headers (cf-ray for Cloudflare, x-am…
Analyse my site for freeHow TheSiteFuse checks "CDN / DDoS protection"
This check determines whether the site uses a Content Delivery Network (CDN) by analysing HTTP response headers (cf-ray for Cloudflare, x-amz-cf-id for AWS CloudFront, x-fastly-request-id for Fastly…) and checking whether the resolved IP belongs to known CDN ranges. CDNs serve the site from servers close to each visitor worldwide.
Real-world impact of "CDN / DDoS protection"
A CDN improves load times for visitors far from the origin server, absorbs traffic spikes, provides basic DDoS protection, and can offer free HTTPS. Cloudflare offers a comprehensive free plan with HTTP/3, global cache, universal SSL and GDPR-friendly analytics.
Does your site pass this check?
Run the free full audit (120 checks) and instantly discover what needs fixing.