Advanced, Powerful, Trusted

Cloudflare Security Services protect and secure Internet properties against denial-of-service attacks, customer data breaches, and abusive bots.

"Thanks to the great support we received from the Cloudflare team, especially during our peak weeks in May, we’ve felt more secure that the sites would keep running smooth regardless of amounts of traffic—and they have."
Wouter van Vliet
Project Developer of the Eurovision Song Contest at EBU/EUROVISION

Anycast Network

With 180 data centers across 80 countries and 30 Tbps of capacity, Cloudflare’s Anycast network absorbs distributed attack traffic by dispersing it geographically, while keeping Internet properties available and performant. Learn More


DNSSEC is the Internet’s non-spoofable caller ID. It guarantees a web application’s traffic is safely routed to the correct servers so that a site’s visitors are not intercepted by a hidden “man-in-the-middle” attacker. Learn More

Web Application Firewall (WAF)

Cloudflare’s enterprise-grade web application firewall (WAF) detects and block common application layer vulnerabilities at the network edge, utilising the OWASP Top 10, application-specific and custom rulesets. Learn More

Rate Limiting

Rate Limiting protects critical resources by providing fine-grained control to block or qualify visitors with suspicious request rates. Learn More


Transport Security Layer (TLS) encryption enables HTTPS connections between visitors and origin server(s), preventing man-in-the-middle attacks, packet sniffing, the display of web browser trust warnings, and more. Learn More

Secure Registrar

Cloudflare is an ICANN accredited registrar, protecting organizations from domain hijacking with high-touch, online and offline verification for any changes to a registrar account. Learn More


Cloudflare Orbit solves security-related issues for Internet of Things devices at the network level. Learn More

Argo Tunnel

Cloudflare creates an encrypted tunnel between its nearest data center and an application’s origin server without opening a public inbound port. Learn More


Secure, authenticate, and monitor user access to any domain, application, or path on Cloudflare. Learn More


Spectrum protects TCP applications and ports from volumetric DDoS attacks and data theft by proxying non-web traffic through Cloudflare’s Anycast network. Learn More

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