DNS Guide

DNS Basics

What Every Website Owner Should Know

What is DNS, and how does it work?

DNS (Domain Name System) acts like the internet’s phonebook, translating human-readable domain names (like example.com) into IP addresses (e.g., 192.0.2.1). When someone enters your domain name in their browser, DNS ensures they are directed to the correct server hosting your website. This process involves DNS servers communicating with each other to resolve the domain name into an IP address.

Why is DNS important for my website and online presence?

DNS is critical because it ensures that your domain name directs users to your website. Without properly configured DNS settings, visitors may be unable to access your site, send emails to your domain, or use connected services. Reliable DNS helps maintain website uptime, email delivery, and overall online credibility.

What are domain names, and how do they relate to DNS?

A domain name is the unique address users type into their browsers to reach your website (e.g., yourbusiness.com). DNS connects the domain name to the servers hosting your website and services. For example, when you type example.com, DNS translates it into the IP address of the web server hosting the site.

What are DNS records?

DNS records are the instructions that tell DNS servers how to handle your domain name. Common types of DNS records include:

  • A record: Points a domain to an IP address.
  • CNAME record: Redirects one domain to another.
  • MX record: Routes emails to your mail server.
  • TXT record: Provides additional information, often for email security or verification.

Learn more about the different types of DNS records.

How do I find out who manages my DNS?

You can use our free tool to find out the DNS provider for your domain.

How long does it take for DNS changes to update worldwide?

DNS changes usually take between a few minutes to 48 hours to propagate globally. This time depends on the TTL (Time to Live) settings in your DNS records. TTL specifies how long DNS servers and browsers cache the old information. While lower TTL values (e.g., 300 seconds) speed up propagation, some networks and devices may still take time to refresh their caches.