DDoS Protection with CDN — Performance Meets Resilience

A CDN and DDoS protection serve complementary purposes. The CDN caches your static content (images, CSS, JavaScript, videos) at edge locations worldwide, reducing the load on your origin server and delivering content faster to users regardless of their geographic location. DDoS protection filters malicious traffic before it reaches your origin server, preventing attacks from overwhelming your infrastructure.

When combined, these two layers create a defense-in-depth architecture. The CDN absorbs legitimate traffic spikes and serves cached content directly, reducing the volume of requests that reach your origin. The DDoS protection filters the remaining traffic — both legitimate origin requests and any attack traffic — ensuring that only clean, valid requests arrive at your server.

This combination is particularly effective against application-layer attacks. The CDN handles the vast majority of GET requests from its cache, so an HTTP flood targeting your homepage generates load on the CDN (which is designed to handle massive traffic) rather than your origin server. Only requests for dynamic content or cache misses reach your DDoS-protected origin.

Using a CDN introduces a critical requirement: your origin server's IP address must remain hidden. If attackers discover your origin IP, they can bypass the CDN entirely and attack your server directly. AnubizHost DDoS protection adds a safety net by protecting your origin even if its IP is discovered.

Our mitigation filters all traffic to your origin server, whether it arrives through the CDN or directly. If an attacker bypasses the CDN by targeting your origin IP, the DDoS protection absorbs the attack just as effectively as it would without the CDN. You get the performance benefits of CDN caching plus the security of origin-level protection.

We recommend configuring your server's firewall to only accept connections from your CDN provider's IP ranges, with our DDoS mitigation layer as the first line of defense. This layered approach ensures that even if the CDN or firewall is bypassed, your server remains protected by our always-on mitigation infrastructure.

AnubizHost hosting is fully compatible with all major CDN providers. Whether you use Cloudflare, BunnyCDN, KeyCDN, StackPath, or any other CDN service, our DDoS-protected servers work seamlessly as origin servers. The mitigation layer is transparent to the CDN — it simply sees your server responding normally to requests.

To configure CDN integration, deploy your AnubizHost server, set up your website, and configure your CDN provider to use your server's IP as the origin. Our DDoS protection filters traffic arriving from the CDN's edge servers just like any other traffic, but you can whitelist your CDN provider's IP ranges to ensure they are never affected by rate limiting during attacks.

For maximum performance, configure your CDN with aggressive caching rules for static content and appropriate cache-control headers for dynamic content. This reduces origin load, lowers bandwidth usage, and ensures that your visitors experience fast page loads from the nearest CDN edge location while your origin server remains protected and responsive.

The combination of CDN and DDoS protection is ideal for websites with global audiences where both performance and security are priorities. If your visitors are spread across multiple continents, a CDN reduces latency by serving content from nearby edge locations. If your site faces DDoS threats, our origin protection ensures uptime regardless of attack intensity.

E-commerce sites benefit enormously from this combination. Product images and static assets are served from CDN edge locations for fast page loads, while the shopping cart, checkout, and API endpoints are served from your DDoS-protected origin. The CDN handles the bandwidth-intensive content delivery while our mitigation protects the business-critical application logic.

Content publishers, SaaS platforms, and API providers also benefit from this architecture. The CDN handles the traffic volume while the DDoS protection handles the security. Together, they create a hosting infrastructure that scales to massive traffic volumes while remaining resilient against attacks. Deploy your AnubizHost server, connect your CDN, and enjoy performance and protection in one package.