We use DNSSEC validation when probable, as that allows us to be sure the responses are precise and untampered with. The cost of signature verifications is very low, as well as the potential personal savings we get from intense unfavorable caching greater than make up for that. Just scroll down https://directadmininstall80099.diowebhost.com/82043491/how-nginx-ssl-certificate-install-can-save-you-time-stress-and-money