DDoS (Distributed Denial of Service) attacks, as the most common and deadly means of network attacks, have become the number one threat faced by many online services. In this context, Hong Kong's large defense servers have become a popular choice for domestic and foreign users, especially mainland enterprises, webmasters, and game operators. So, the question is how many G defenses should Hong Kong's large defense servers choose? Should we choose 100G? 200G? Or a super large protection of 1000G?

　　Before choosing the defense level, we must first understand what "how many G defenses" means. Generally speaking, "10G defense" means that the server can withstand a maximum of 10Gbps of DDoS attack traffic, which may trigger a black hole, speed limit or interruption.

　　How to choose the defense level for different business scenarios?

　　DDoS attacks are not a "one-size-fits-all" thing, and the choice of defense bandwidth must also be configured according to the industry risk level and attack frequency. Here are some common scenario configuration suggestions:

　　1. Corporate official website/brand official website, low attack probability, recommended defense level: 10G~50G basic defense

　　Reason: Most corporate sites are not attack targets, and configuring basic protection is sufficient to avoid unnecessary investment.

　　2. E-commerce platform/information site, medium attack probability, easy to be attacked by peers or mistakenly, recommended defense level: 50G~100G

　　Reason: Daily visit volume is high, once paralyzed, the impact is large, it is recommended to use BGP defense + CDN distribution to alleviate.

　　3. Game server, high attack probability, almost every day, recommended defense level: 200G~300G or above

　　Reason: Game business is most likely to become an attack target, especially during the opening period, a stable environment is required, it is recommended to use a server with instant black hole solution + CC hardware cleaning.

　　4. Finance/payment interface/live broadcast platform, the probability of attack is very high, often targeted by professional hacker groups, recommended defense level: 300G~1000G customized

　　Reason: This type of business has extremely high requirements for stability, and a downtime may cause financial losses. It is recommended to deploy multi-node disaster recovery + global load balancing strategy.

　　In order to avoid "wasting money" or "being attacked", the following four rules are recommended to be kept in mind:

　　1. Allocation on demand and dynamic expansion. The higher the defense, the better, but it can just block when your business is threatened. If you are just testing a site, it is unnecessary to buy 1000G. Most regular cloud service providers support "dynamic upgrade of defense bandwidth".

　　2. Understand the defense mechanism. Some defenses are "traffic type" (only against UDP), and some are "full-scenario type" (even HTTPS/CC can be cleaned). When choosing protection, you need to pay attention to whether it includes intelligent identification, behavior analysis, black hole unblocking mechanism, etc.

　　3. Pay attention to CC attack protection. Many attacks do not rely on bandwidth, but on the number of concurrent connections to bring down services, such as HTTP GET flood attacks. This type of attack is extremely harmful to server CPU resources, and intelligent firewall + WAF strategy must be deployed.

　　4. Multi-line disaster recovery is the key. No matter how strong the single-machine protection is, it cannot defeat the black hole strategy. It is recommended to use multi-IP switching, multi-node load, DNS intelligent resolution and other methods to achieve rapid escape during attacks.

　　There is no "standard answer" to choose how much defense, but it should be comprehensively judged based on your actual business scale, attack risk, and disaster recovery capabilities. 10G is enough for small websites, 100G is recommended for e-commerce information, 200~500G defense is considered safe for game finance, and live broadcast social and other extremely vulnerable businesses must have full-link high availability + 1,000G high-defense architecture.

　　The final suggestion is: Don't wait until you are paralyzed before you remember "I knew I should buy more defense earlier." Instead of taking the risk of service suspension, it is better to plan defense capabilities in advance and take the initiative in your own hands.