['Google – 8.8. 8.8; 8.8. 4.4.', 'OpenDNS – 208.67. 222.222; 208.67. 220.220.', 'Open Settings → Wi-fi.', "Tap on the 'i' icon to the right of connected WiFi network's name.", 'Scroll down and tap on DNS.', 'Enter any of the given DNS addresses as is.', 'Restart Wi-fi on iPhone.']