A CDN node,
Content Delivery Networks (CDNs), refers to a server or point of presence (PoP) within a CDN infrastructure. CDNs consist of distributed network nodes strategically placed in various geographic locations. Each CDN node caches and delivers content, such as web pages, images, videos, and other digital assets, to users based on their geographic proximity. By distributing content closer to end-users, CDN nodes reduce latency, accelerate content delivery, and improve overall website performance.
CDN in Node.js refers to the integration of Content Delivery Networks with applications developed using Node.js, a popular runtime environment for building server-side applications. In Node.js, developers can leverage CDN services to efficiently deliver static assets, such as CSS, JavaScript files, and images, to users worldwide. By offloading the delivery of static content to CDNs, Node.js applications can enhance performance, reduce server load, and improve scalability, thereby optimizing user experience.
The purpose of CDN, or Content Delivery Network, is to enhance the delivery of web content to users across the globe. CDNs achieve this by caching content on distributed network servers (CDN nodes) located closer to end-users. When a user requests content, the CDN delivers it from the nearest node rather than the origin server, reducing latency and improving load times. CDNs also provide scalability, reliability, and security features, such as DDoS mitigation and HTTPS encryption, to ensure efficient and secure content delivery.
CDN (Content Delivery Network) and DNS (Domain Name System) serve different functions in web infrastructure. A CDN focuses on optimizing content delivery by caching and distributing content to edge servers (CDN nodes) located worldwide. It improves website performance by reducing latency and improving load times for users accessing content from different geographic locations. DNS, on the other hand, translates domain names (e.g., www.example.com) into IP addresses that computers use to locate and connect to web servers. DNS ensures that users can access websites by resolving domain names to the correct IP addresses, facilitating the initial connection between clients and servers. While CDNs optimize content delivery, DNS plays a crucial role in resolving domain names and directing users to the appropriate CDN node or origin server based on their location.