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What Is Cloudflare? How It Works: CDN, Security and Performance Guide

What Is Cloudflare? How It Works: CDN, Security and Performance Guide

What Is Cloudflare?

Cloudflare is a global CDN and security network that sits between websites and their visitors. Its purpose is to make websites faster, more secure, and more resilient.

Cloudflare is not a hosting provider.
It acts as a protection and acceleration layer in front of your server.


What Is a CDN? How Does Cloudflare CDN Work?

A CDN (Content Delivery Network) caches website content across global servers and delivers it from the nearest location to the user.

How Cloudflare CDN works:

  1. User sends a request

  2. Request is routed to the nearest Cloudflare node

  3. Cached content is delivered quickly

  4. Origin server load is reduced


What Does Cloudflare Provide?

Performance

  • Faster page load times

  • Reduced server load

  • Global content delivery

Security

  • DDoS attack mitigation

  • Bot and malicious traffic filtering

  • Advanced firewall rules

Reliability

  • Handles traffic spikes

  • Protects servers during high demand


How Does Cloudflare DDoS Protection Work?

Cloudflare detects malicious traffic using:

  • Behavioral analysis

  • IP reputation

  • Traffic pattern analysis

Attacks are blocked before reaching the origin server.


What Is Cloudflare WAF?

Cloudflare Web Application Firewall protects against:

  • SQL Injection

  • Cross-site scripting

  • Malicious bots

Rules are managed in real time via the control panel.


Is Cloudflare Necessary for Every Project?

  • Small websites → Optional

  • Medium and large websites → Recommended

  • E-commerce and enterprise sites → Required

  • APIs and game infrastructures → Essential

Cloudflare does not fix bad infrastructure, but it protects good infrastructure.


Common Cloudflare Mistakes

  • Treating Cloudflare as hosting

  • Relying solely on Cloudflare for security

  • Misconfigured cache rules

  • Ignoring server-side security


Conclusion

Cloudflare improves speed, security and stability.
When configured correctly, it provides measurable benefits.


ServerTurk + Cloudflare Infrastructure

ServerTurk infrastructure is optimized for Cloudflare integration, delivering high-performance and DDoS-protected server solutions.

View server solutions:
https://serverturk.net

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