I went to go to the jenkins build site today, and it gave me a name resolution error. I did a dns lookup and it turns out the domain has no IP's set for the root of the domain or for the jenkins build server. It seems to be resolving to cloudflare without an IP address set, so it won't resolve. Please fix this

ci.drtshock.net has been offline for several years. You can use ci.ender.zone as mentioned above.

The CI server listed in the README and on the Spigot page is https://ci.ender.zone/job/EssentialsX/ - I'm not sure where you found the above link, but you should probably use this one instead.