I couldn't help myself and did some more digging. Here is the output from unbound.log after a failed attempt to access fudzilla.com:
Feb 11 16:34:29 unbound[22548:0] query: 127.0.0.1
www.fudzilla.com. A IN
Feb 11 16:34:29 unbound[22548:0] error: SERVFAIL <ns.h3s.org. A IN>: all servers for this domain failed, at zone h3s.org.
Feb 11 16:34:29 unbound[22548:0] error: SERVFAIL <ns2.h3s.org. AAAA IN>: all servers for this domain failed, at zone h3s.org.
Feb 11 16:34:29 unbound[22548:0] query: 127.0.0.1
www.fudzilla.com. A IN
Feb 11 16:34:30 unbound[22548:0] error: SERVFAIL <ns.h3s.org. A IN>: all servers for this domain failed, at zone h3s.org.
Feb 11 16:34:30 unbound[22548:0] error: SERVFAIL <ns2.h3s.org. AAAA IN>: all servers for this domain failed, at zone h3s.org.
Feb 11 16:34:30 unbound[22548:0] error: SERVFAIL <ns.h3s.org. AAAA IN>: all servers for this domain failed, at zone h3s.org.
Feb 11 16:34:30 unbound[22548:0] error: SERVFAIL <ns.h3s.org. AAAA IN>: all servers for this domain failed, at zone h3s.org.
Feb 11 16:34:30 unbound[22548:0] error: SERVFAIL <ns2.h3s.org. A IN>: all servers for this domain failed, at zone h3s.org.
Feb 11 16:34:30 unbound[22548:0] error: SERVFAIL <ns.h3s.org. AAAA IN>: SERVFAIL in cache
Feb 11 16:34:30 unbound[22548:0] error: SERVFAIL <ns2.h3s.org. A IN>: all servers for this domain failed, at zone h3s.org.
Feb 11 16:34:30 unbound[22548:0] error: SERVFAIL <
www.fudzilla.com. A IN>: all servers for this domain failed, at zone fudzilla.com.
Feb 11 16:34:30 unbound[22548:0] reply: 127.0.0.1
www.fudzilla.com. A IN SERVFAIL 0.584118 0 34
Feb 11 16:34:30 unbound[22548:0] reply: 127.0.0.1
www.fudzilla.com. A IN SERVFAIL 1.035926 0 34
NSLOOKUP for fudzilla.com
Server: 1.1.1.1
Address 1: 1.1.1.1 one.one.one.one
Name: fudzilla.com
Address 1: 185.203.18.82 fudzilla.com