Mac uses Domain Name System (DNS) to access websites on its browser. Many people are not aware of this fact and completely ignore Mac DNS servers settings. But if the DNS servers of your Mac are not functioning properly, then the websites may slowly or not load at all.

Hence, it becomes crucial for every Mac user to know how to change DNS server settings. In this article, all your queries regarding how to change DNS mac will be answered.

What is DNS?

Every website on the Internet is connected to an IP address. Let us understand with the help of an example-

If someone has to find your house, then that person requires your address. Similarly, for the Mac to load a website, you need type in the website IP address into a web browser.

But the problem is that IP addresses are quite difficult to remember. This is where DNS comes to the rescue. It masks the IP addresses and gives them a domain name so that you can remember it easily.

IP address:- 157.245.138.190 Domain Name:- serverguy.com

Learn how to find IP address of a website server

How DNS works?

When you type in the domain name in your mac browser and press enter, the computer will contact a DNS server to find the IP address associated with the domain name. DNS is basically a directory containing IP addresses of all the websites present on the Internet.

Why Change DNS Server Settings in Mac OS?

Every Internet service provider manages their own DNS servers. But what happens when these DNS servers become unavailable. Mac won’t be able to load any websites.

Don’t worry. There are many companies such as OpenDNS and Google Public DNS that offer free DNS servers you can use with Mac. They may also offer additional services such as malware protection and parental controls.

Google Public DNS doesn’t prevent you from accessing certain webpages on the Internet as compared to Open DNS which may block you from visiting malicious sites.

Adding, Editing, & Adjusting Mac DNS Settings

  1. Go to the Apple menu and select “System Preferences”.
  2. Choose the “Network” control panel, select your network interface from the left side (“Wi-Fi” or “Ethernet” for example), then click the “Advanced” button in the lower right corner of the Network window.

3. Choose the “DNS” tab at the top of the screen

  • Add a new DNS server: click on the [+] plus button.
  • Edit an existing DNS server: click twice on the DNS IP address you wish to change.
  • Remove a DNS server: select a DNS server IP address and then click either the [-] minus button or hit the delete key.

4. When finished making changes to the DNS settings, click on the “OK” button.

5. Now click on “Apply” for the DNS changes to take effect, close out of System Preferences as usual.

The topmost DNS servers will be accessed first, so you’ll want to put the best performing servers near the top of the list for the best results. In the screenshot examples above, Google DNS servers (8.8.8.8 and 8.8.4.4) are placed above the OpenDNS servers, both of which are faster than ISP provided DNS servers.