In the field of network security, high-defense CDN and high-defense IP are two common defense methods, each with unique characteristics and applicable scenarios. This article will analyze the difference between high-defense CDN and high-defense IP in detail, and explore which one is more suitable for website business.

　　1. Basic concepts of high-defense CDN and high-defense IP

　　High-defense CDN:

　　Definition: High-defense CDN is a network security solution that combines content distribution network (CDN) and high defense capabilities. It deploys cache servers at multiple nodes around the world to achieve rapid distribution and access of content while providing security protection functions.

　　Core functions: security protection, accelerated access, cross-operator and cross-regional full network coverage.

　　High-defense IP:

　　Definition: High-defense IP is a dedicated IP address with high defense capabilities. It effectively defends against various network attacks through technical means such as firewalls, intrusion detection systems (IDS), and intrusion prevention systems (IPS).

　　Core functions: Provide powerful DDoS attack and CC attack defense capabilities to protect servers and applications from attacks.

　　High-defense CDN

　　II. The main difference between high-defense CDN and high-defense IP

　　Defense type:

　　High-defense CDN: mainly targets URL DDoS attacks and CC attacks. It can monitor and clean malicious traffic in real time to ensure the safe and stable operation of websites or services.

　　High-defense IP: mainly defends DDoS attacks and CC attacks, but the defense range is relatively narrower, and the defense ability for certain specific vulnerabilities may not be as good as high-defense CDN.

　　Defense false-kill rate:

　　High-defense CDN: The false-kill rate is relatively low because it adopts a distributed architecture and shares the attack traffic through multiple nodes to reduce the possibility of misjudgment.

　　High-defense IP: The false-kill rate is relatively high, especially after enabling strict mode, some normal public IPs and WIFI connections may be blocked.

　　IP number:

　　High-defense CDN: shared IP, content distribution and security protection are achieved through a group of IP protection.

　　High-defense IP: single IP exclusive, directly defend against server IP address.

　　Business direction:

　　High-defense CDN: mainly for website business, defense through domain name access, limited open ports to 80 and 443 (HTTP and HTTPS ports).

　　High-defense IP: supports a wider range of businesses, including APP, website business, games, software, etc., and supports full port forwarding.

　　Deployment and maintenance:

　　High-defense CDN: relatively easy to deploy, and can provide services globally through simple configuration.

　　High-defense IP: requires specific defense software or hardware to be installed on the server, which may require certain technical resources and time.

　　Cost:

　　High-defense CDN: charges according to service level and traffic size, usually with low cost.

　　High-defense IP: usually requires one-time purchase or long-term rental of hardware equipment or software licenses, and the cost is relatively high.

　　III. Applicability analysis of high-defense CDN and high-defense IP

　　Applicability of high-defense CDN:

　　Accelerated access: suitable for businesses that need to accelerate global content distribution and improve website availability.

　　Reduced costs: through distributed architecture and caching technology, reduce source server load and network congestion, and reduce operating costs.

　　Hide the source station: effectively hide the source IP of the website and improve the concealment of the overall security protection.

　　Applicability of high-defense IP:

　　High security: suitable for businesses that require high security, large-volume DDoS defense and low latency.

　　Flexible configuration: provides flexible configuration and management functions, which can be customized and optimized according to actual needs.

　　Wide application: suitable for various online services that require high security protection, such as finance, games, e-commerce and other fields.

　　For website business, high-defense CDN and high-defense IP have their own advantages and disadvantages. High-defense CDN is more suitable for business scenarios that require accelerated access, improved website availability and reduced source server load; while high-defense IP is more suitable for business scenarios that require high security, large-volume DDoS defense and low latency. When choosing, it is necessary to make comprehensive considerations based on actual needs, including business needs, cost budget, technical architecture and other factors. The best practice is to select appropriate defense measures according to specific needs and implement them together with other security measures to ensure network security and reliability.