Under DDoS Attack?
Our Emergency Protection can defend against any attack.
Cloudflare mitigates DDoS attacks, including those that target UDP and ICMP protocols, SYN/ACK, DNS and NTP amplification and Layer 7 attacks. Our global network has defended against sustained attacks over 400Gbps. If you're under DDoS attack, we can get your site back online within minutes.
Activate DDoS Protection
Get These Benefits Within a Few Minutes
Protection against DDoS attacks of all forms and sizes
Mitigates both app-based and volumetric attacks
24/7/365 support backed by our team of security experts
Automatic learning from network effect of 26M+ Internet properties
Predictable, flat pricing regardless of attack size or duration
Uptime guarantee
Use of Anycast for both DNS and TCP
Global, distributed network spanning 200 cities
All DDoS attacks absorbed before they overload your server
Legitimate traffic can still access your content
In The News
Firm is accused of sending spam and fight jams the Internet.
“It is a real number [300Gbps]. It is the largest publicly announced DDoS attack in the history of the Internet,” said Mr. Gilmore, chief architect of Akamai Technologies.”
Record-breaking DDoS attack in Europe hits 400Gbps.
“Cloudflare’s CEO Matthew Prince tweeted: ‘A very big NTP reflection attack is hitting us right now. Someone’s got a big new cannon.’”
How It Works
As web attacks get bigger, our network offers high capacity to mitigate the attack and protect your website from DDoS attacks, even ones exceeding hundreds of Gbps. Cloudflare has built a best-in-class, global infrastructure from the ground up with no legacy software or hardware.
With Cloudflare, all attack traffic that would otherwise directly hit your server is automatically routed through Cloudflare’s global network of data centers. Once attack traffic is shifted, we are able to leverage the significant global capacity of our network and infrastructure to absorb the floods of attack traffic at our network edge.
Our global infrastructure has mitigated two of the largest DDoS attacks recorded in public history: a 300Gbps DDoS attack flooding spam fighter Spamhaus in March 2013, and a record-breaking 400Gbps attack in February 2014. Additionally, Cloudflare learns from attacks against any individual customer to protect all customers on our network. This automatic learning means your website is protected against the latest threats.
When the online social networking portal, Meetup, became a target of the increasingly common NTP-based DDoS attacks, its web and mobile site experienced intermittent outages over several days. The attack caused the longest downtime in the company’s 12 years of operation. Subsequently, Meetup requested help from Cloudflare, which successfully mitigated the attack and kept the site online.
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