Website security has become an important issue that businesses cannot ignore.Content Delivery Network(CDN) has been widely adopted as an effective means to improve website access speed and user experience. However, with the continuous development of technology, attacks against CDNs are also increasing, which raises concerns about website security. In this article, we will discuss whether websites still face the risk of being attacked after using CDNs, and how high-defense CDNs can effectively defend against these attacks.
First, will the website be attacked after the CDN set?
Although a CDN can significantly improve the access speed and user experience of a website, it does not completely eliminate the risk of a website being attacked.The main function of a CDN is to distribute website content to nodes around the globe so that users can access the content from the nearest node, thus speeding up access. However, this does not mean that a website's real IP address and servers are completely hidden from attack. In some cases, it is still possible for hackers to find out the real IP address of a website and launch an attack. For example, by directly attacking a CDN's edge nodes, exploiting a website's security holes to bypass the CDN's protection, or obtaining information about the CDN provider through social engineering means, it is possible for hackers to locate and attack a website's real server.
Second, how does a high defense CDN defend against attacks?
High-defense CDN is designed to address the shortcomings of traditional CDN in terms of security protection, which combines the content distribution capability of CDN and powerful security protection to provide all-round protection for websites. The following are the main ways of defending against attacks by high security CDN:
Dispersing and filtering attack traffic:
High-defense CDNs decentralize incoming traffic through globally distributed servers, reducing the pressure on a single server.
Traffic filtering is implemented on edge nodes to intercept suspicious traffic and prevent attack traffic from reaching the real servers of the website.
network layer andapplication layer firewall::
High-defense CDNs are equipped with network layer and application layer firewalls to protect websites from web application layer attacks such as SQL injection, cross-site scripting (XSS), and so on.
Threat intelligence and real-time monitoring:
Provide threat intelligence services to detect and analyze trends and patterns of cyber attacks in a timely manner.
Equipped with a real-time monitoring and alarm system, which will give an immediate alert and take appropriate measures once abnormalities are detected.
Hide the server IP address:
By modifying the website domain name resolution, the domain name is resolved to the CNAME record value automatically generated by the high-defense CDN, thus hiding the real IP address of the server.
Data encryption and secure transmission:
High-defense CDNs usually provide SSL certificates and HTTPS encrypted transmission to ensure the security of user data during transmission.
Flow Cleaning:
The high defense CDN screens all traffic through the cleaning center to remove malicious traffic and ensure the passage of normal traffic.
Multi-layered security:
High-defense CDN adopts a multi-layered security protection mechanism, which not only provides protection at the application layer, but also defends against attacks at the network layer.
Third, the actual application effect of high defense CDN
High-defense CDN has demonstrated strong protection capabilities and performance optimization techniques in practical applications. It is able to defend against many types of network attacks, including distributed denial of service (DDoS) attacks, Web application layer attacks, and so on. Through real-time monitoring and log analysis functions, website administrators can grasp the real-time status and traffic of the website, and once abnormal behavior or potential attack risks are detected, they can respond quickly and take appropriate protective measures. In addition, the log analysis function of High Defend CDN also provides detailed traffic records and attack statistics reports, which help administrators to understand the specific details of the attack events and optimize the protection strategy to gradually improve the overall security of the website.
Although websites may still face the risk of being attacked after using a CDN, High Defensive CDN provides all-round protection through its powerful security features and performance optimization technology. From dispersing and filtering attack traffic, network-layer and application-layer firewalls, threat intelligence and real-time monitoring, hiding server IP addresses, data encryption and secure transmission, traffic cleansing, to multi-layered security protection, High Defensive CDN has demonstrated excellent defense capabilities in every aspect. Therefore, for enterprises wishing to safeguard website security and improve user access experience, high defense CDN is undoubtedly a wise choice.