One single ELB cluster (not one instance) can support hundreds of millions of concurrent connections and process millions of data packets per second. This enables you to easily sustain ecommerce websites, social networking platforms, and gaming businesses with over 10 million daily page views.
The ELB cluster scales the service capabilities of the application system elastically according to the business load, and automatically creates and releases ECC instances through the dynamic scaling group of Auto Scaling. These features, in conjunction with a dynamic monitoring system and a billing system that is accurate to the second, eliminate your need to manually intervene or estimate resource requirements, helping you reasonably allocate computing resources and prevent resource waste.
ELB eliminates your need to invest in additional load balancing hardware and time devoted to tedious OPS work, saving you up to 99% of hardware and labor costs. It supports multiple billing modes for your choice as needed.
With the aid of BGP Anti-DDoS system, ELB is capable of defending against most network attacks (such as DDoS, CC, and web intrusion attacks) and cleansing attacking traffic in a matter of seconds, which greatly avoids the occurrence of blocked IPs and full occupancy of bandwidth. Its built-in synproxy anti-attack mechanism prevents the backend CVM instances from being crashed by attacks before the Anti-DDoS system takes effect, which makes data more secure and stable.
ELB strictly isolates the traffic of each tenant and provides active protection against DDoS attacks. Public network ELB supports Anti-DDoS Basic by default. Moreover, ELB further supports Anti-DDoS Pro, Anti-DDoS Advanced, WAF, and other security products to safeguard your businesses.