Why Does DNS Cache Matter?
DNS cache plays a crucial role in how fast and efficiently you access websites on the internet. Whether you’re a casual web user or managing a large-scale IT infrastructure, understanding this key DNS term is essential for maintaining a smooth online experience.
What is DNS Cache?
First, let’s briefly revisit how the Domain Name System (DNS) works. When you type a website like example.com into your browser, your device needs to find the IP address that corresponds to that domain. DNS servers handle this lookup by translating domain names into IP addresses, which computers use to communicate.
This process can take time. That’s where DNS cache comes in. Your computer, browser, or even your router stores previous DNS lookup results locally in a temporary database known as the DNS cache. This stored information helps your system avoid repeating the same lookup process every time you visit a site.