DNS servers are nothing more than 'translators' that allow you to connect to Internet sites by typing in simple text addresses (e.g. www.google.com) instead of very long numeric addresses (e.g. 74.125.224.72), which would then be the actual coordinates of the Internet sites. Using fast DNS servers makes it faster to connect to Internet sites than using slow DNS servers.
Some of the DNS servers recognised as secure are:
Once you have chosen your DNS server follow one of the following procedures to set it up:
Set up DNS servers on Windows.
To change DNS servers on Windows, click on Start > Control Panel.
Then go to Network and Internet and then to Network and Sharing Centre. In the window that opens, select the name of the connection you are using (e.g. Local Area Connection (LAN) or Ethernet) and then click Properties.
Then double-click on the Internet Protocol version 4 (TCP/IPv4) item, tick the Use the following DNS server addresses item and set the DNS server values chosen earlier. To confirm and apply the changes made, click on the OK button.
Now, on the screen that has opened, click Modify under the heading DNS Server Assignment and choose the Manual option. Finally, move the switch under IPv4 to ON, type in the DNS addresses you wish to use, using the text fields Preferred DNS and Alternate DNS and Save.
If you have second thoughts, you can reset the default DNS servers again by choosing the Automatic (DHCP) option on the screen you went to earlier and then clicking the Save button.
Setting DNS Servers on MacOs
If you use a Mac, after finding the best DNS you can set them up by going to Settings > Network > Advanced.
Then go to the DNS tab and click on the + button located at the bottom left.
Now type in the address of the primary DNS server and the address of the secondary DNS server you wish to use and save the changes by clicking first on OK and then on Apply.
Set DNS Server on Android
If you are using an Android smartphone or tablet, you can change DNS by first assigning a static IP address to the device when connected to a wireless network. To do this, go to the device screen where all apps are grouped, click on Settings, select Wi-Fi and hold your finger for a few seconds over the name of the wireless connection you are connected to.
Then choose the Edit Network Configuration item from the menu that appears, place a tick next to Show Advanced Options, scroll down and select the Static option from the IP Settings menu. Finally, scroll down the screen again, set the DNS servers you intend to use in the DNS 1 and DNS 2 fields and Save.
Set DNS Servers on iOS.
If you are using an iPhone or iPad, once you have found the best DNS, you can set them on your device by going to the device's home screen, clicking on the Settings icon and selecting Wi-Fi from the new screen that appears.
Then tap on the i located next to the name of the connection in use. Then delete everything in the field next to the DNS item and type in the addresses of the DNS servers you wish to use, separating them with a comma.
Set DNS Server on Modem/Router.
Access the device configuration panel.
Once you have accessed the modem management panel, go to the connection status section and locate the entries DNS 1 or Primary DNS and DNS 2 or Secondary DNS. The numerical digits in correspondence with these entries are the addresses of the DNS servers currently used by your Internet connection.
Then tick the box next to the heading Use these DNS servers or the one indicating that you wish to change DNS, fill in the fields relating to the two servers with customised addresses and then click on the Apply, OK or Save button to confirm and apply the changes. Please note that after completing the procedure for changing DNS on the modem, the modem may restart.