DNSecure how to increase internet speed in iPhone and iPad cellular and WiFi

ALL DNS SERVER THE BEST I THINK : ADD ALL DNS SERVER IPV4 : 8.8.8.8 8.8.4.4 208.67.222.222 208.67.220.220 1.1.1.1 1.0.0.1 9.9.9.9 149.112.112.122 …

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ipv4