Viewing profile — kearneyface

Another way to do this is for visitors that are known to be invalid to just decline transactions or require additional verification. For example, users coming from within a datacen…

LetsEncrypt sends emails when the expiration is close, so this is a supplemental service on top of LetsEncrypt's notifications.

Yeah, it does present a maintenance problem. I think a third party service is a good validator. Also look at pingdom.