What is DNS?

What is DNS?

What is DNS?

DNS stands for Domain Name System. It's like the phonebook of the internet. When you type a website address (like zohodomains.com) into your browser, DNS helps your computer find the IP address (a unique set of numbers) of the server where that website is stored.

In simple terms, DNS translates the human-friendly website names you type into something computers can understand, so they can connect you to the right place on the internet.

Without DNS, we'd have to remember complex numbers (IP addresses) instead of easy-to-remember domain names like www.zoho.com or manageengine.com.

How Domain Names are Resolved via DNS

When you type a domain name (e.g., zohodomains.com) into your browser, DNS helps your computer find the corresponding IP address so it can connect to the website. Here’s how it works:

  1. DNS Query: Your computer sends a query to a DNS server to find the IP address for the domain.
  2. DNS Resolver: The resolver checks its cache for the IP address. If not found, it forwards the request to the root nameservers.
  3. Root & TLD Nameservers: The query is passed from the root nameserver to the TLD (Top-Level Domain) nameservers (e.g., .com), and then to the authoritative nameserver for the specific domain.
  4. IP Address Returned: The authoritative nameserver sends the IP address back to your computer.
  5. Website Load: Your computer uses the IP address to connect to the web server, and the website loads.

In short, DNS translates domain names into IP addresses, allowing your browser to access websites quickly and efficiently.