There seems to be DNS issues, unable to resolve anything under bitminter.com domain right now:

$ nslookup
> bitminter.com
Server:      127.0.0.1
Address:   127.0.0.1#53

** server can't find bitminter.com: NXDOMAIN
> set type=ns
> bitminter.com
Server:      127.0.0.1
Address:   127.0.0.1#53

Non-authoritative answer:
bitminter.com   nameserver = matt.ns.cloudflare.com.
bitminter.com   nameserver = lily.ns.cloudflare.com.

Authoritative answers can be found from:
> server matt.ns.cloudflare.com
Default server: matt.ns.cloudflare.com
Address: 173.245.59.131#53
> bitminter.com
Server:      matt.ns.cloudflare.com
Address:   173.245.59.131#53

bitminter.com   nameserver = lily.ns.cloudflare.com.
bitminter.com   nameserver = matt.ns.cloudflare.com.
> mint.bitminter.com
Server:      matt.ns.cloudflare.com
Address:   173.245.59.131#53

*** Can't find mint.bitminter.com: No answer

EDIT: DNS records seem to be missing the NS entries: