When your device is connected to the Wifi network, by default it will use the DNS Server provided by the Wifi network. You can learn how to change DNS Server on your iPhone or iPad.
Changing the DNS Server will impact your internet speed. If the default DNS server provided by the Wifi network is located far from your location, then your browsing speed will be slowed.
It is important to use the nearest and fastest DNS server. The following guides provide you the option to change the default DNS Server to Google and Open DNS (both are the most recommended DNS Servers).
See also how to change the DNS server on Android.
How to change DNS Server on iPhone or iPad
- On your iPhone or iPad, turn the Wifi On and connect to any Wifi network.
- Open Settings.
- Select Wifi to open the Wifi settings page.
- Select the Wifi network you wanted to change the DNS Server.
- Select the blue i located on the right of the Wifi name.
- Scroll down the information page, under DNS section, select Configure DNS.
- Select Manual at the top of the screen, it will automatically add new DNS server.
- Select the red minus sign located on the left of this new DNS Server to remove it.
- Select the green plus sign beside Add Server and type the IP address of the DNS Server you preferred.
- Once done, select Save at the top right of the screen to save the new setting.
Note: Your iPhone or iPad will remember the setting even after you disconnect them. However, if you choose to Forget network, you will have to do this again from the beginning.