Tencent Cloud
Cloud Load Balancer

Cloud Load Balancer

A secure, stable and elastically scalable traffic distribution service.

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Overview

Tencent Cloud Cloud Load Balancer (CLB) is a secure and fast traffic distribution service. Inbound traffic can be automatically distributed to multiple Cloud Virtual Machine (CVM) instances in the cloud via CLB, improving service capabilities systematically and eliminating single points of failure. CLB supports hundreds of millions of connections and tens of millions of concurrent requests, making it easy to handle high-traffic access and meet demanding business needs.

Benefits

High Performance

High Performance

One single CLB cluster (not one instance) supports up to 120 million concurrent connections and can handle up to 40 Gbps of traffic bandwidth or process 6 million 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.

High Availability

High Availability

One CLB cluster consists of 4 physical servers, offering an availability of up to 99.95%. In the extreme case where only one CLB instance is available, it can still support over 30 million concurrent connections. The cluster system will remove faulty instances in time and keep the healthy ones to ensure that the backend server continues to operate properly.

Elastic Scalability

Elastic Scalability

The CLB cluster scales the service capabilities of the application system elastically according to the business load, and automatically creates and releases CVM 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.

Security and Stability

Security and Stability

With the aid of BGP Anti-DDoS system, CLB 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. CLB's built-in synproxy anti-attack mechanism prevents backend CVMs from being attacked and overloaded before BGP system takes effect, ensuring the data security and stability.

Low Costs

Low Costs

CLB 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. CLB is billed on a pay-as-you-go basis. You only pay for what you use, and you can create and terminate CLB instances at any time according to the business needs.

Features

CLB supports requests from layer 4 protocols (including TCP and UDP) and layer 7 protocols (including HTTP and HTTPS). Its centralized certificate management system supports HTTPS protocol, making data transfer faster, more secure and more reliable.