I found on another thread a line of code to check what's on Port 53, this is the result.
Macintosh-2:~ jarrodvertigan$ sudo lsof -i -P
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
launchd 1 root 19u IPv4 0xd74f6520bc33a235 0t0 UDP *:137
launchd 1 root 20u IPv4 0xd74f6520bc33a04d 0t0 UDP *:138
launchd 1 root 26u IPv6 0xd74f6520bcaf11f5 0t0 TCP *:515 (LISTEN)
launchd 1 root 27u IPv4 0xd74f6520bcaf31fd 0t0 TCP *:515 (LISTEN)
launchd 1 root 28u IPv6 0xd74f6520bcaf0db5 0t0 TCP localhost:631 (LISTEN)
launchd 1 root 29u IPv4 0xd74f6520bcaf2a15 0t0 TCP localhost:631 (LISTEN)
UserEvent 11 root 4u IPv4 0xd74f6520bdf77dfd 0t0 UDP *:*
UserEvent 11 root 8u IPv4 0xd74f6520bc3396c5 0t0 UDP *:*
configd 17 root 16u IPv6 0xd74f6520bdfb3235 0t0 ICMPV6 *:*
mDNSRespo 37 _mdnsresponder 8u IPv4 0xd74f6520bdf77a2d 0t0 UDP *:5353
mDNSRespo 37 _mdnsresponder 9u IPv6 0xd74f6520bdf77845 0t0 UDP *:5353
mDNSRespo 37 _mdnsresponder 15u IPv4 0xd74f6520bc33859d 0t0 UDP *:62065
mDNSRespo 37 _mdnsresponder 17u IPv6 0xd74f6520bdf77fe5 0t0 UDP *:62065
locationd 42 _locationd 5u IPv4 0xd74f6520bc337c15 0t0 UDP *:*
blued 55 root 4u IPv4 0xd74f6520bc339e65 0t0 UDP *:*
apsd 58 root 14u IPv4 0xd74f6520bc6c71fd 0t0 TCP 192.168.1.53:62458->17.132.254.12:5223 (ESTABLISHED)
apsd 58 root 15u IPv4 0xd74f6520bc6c71fd 0t0 TCP 192.168.1.53:62458->17.132.254.12:5223 (ESTABLISHED)
airportd 60 root 10u IPv6 0xd74f6520bdf798ad 0t0 UDP *:*
airportd 60 root 21u IPv4 0xd74f6520bc339a95 0t0 UDP *:*
airportd 60 root 22u IPv4 0xd74f6520bc3398ad 0t0 UDP *:*
airportd 60 root 25u IPv4 0xd74f6520bc337dfd 0t0 UDP *:*
airportd 60 root 28u IPv4 0xd74f6520bc337a2d 0t0 UDP *:*
airportd 60 root 29u IPv4 0xd74f6520bc337845 0t0 UDP *:*
airportd 60 root 31u IPv4 0xd74f6520bc33765d 0t0 UDP *:*
ntpd 122 root 20u IPv4 0xd74f6520bc3394dd 0t0 UDP *:123
ntpd 122 root 21u IPv6 0xd74f6520bc339c7d 0t0 UDP *:123
ntpd 122 root 22u IPv6 0xd74f6520bc33910d 0t0 UDP localhost:123
ntpd 122 root 23u IPv4 0xd74f6520bc338f25 0t0 UDP localhost:123
ntpd 122 root 24u IPv6 0xd74f6520bc338b55 0t0 UDP localhost:123
ntpd 122 root 25u IPv6 0xd74f6520bc50c59d 0t0 UDP macintosh-2.local:123
ntpd 122 root 26u IPv4 0xd74f6520bd4c710d 0t0 UDP 192.168.1.53:123
UserEvent 145 jarrodvertigan 4u IPv4 0xd74f6520bdf79a95 0t0 UDP *:*
SystemUIS 168 jarrodvertigan 9u IPv4 0xd74f6520bdf7765d 0t0 UDP *:*
Finder 169 jarrodvertigan 8u IPv4 0xd74f6520c062d1fd 0t0 TCP localhost:63541->localhost:26164 (ESTABLISHED)
Finder 169 jarrodvertigan 10u IPv4 0xd74f6520bd04fa15 0t0 TCP localhost:63542->localhost:26164 (ESTABLISHED)
Finder 169 jarrodvertigan 20u IPv4 0xd74f6520c062d1fd 0t0 TCP localhost:63541->localhost:26164 (ESTABLISHED)
Finder 169 jarrodvertigan 21u IPv4 0xd74f6520bd04fa15 0t0 TCP localhost:63542->localhost:26164 (ESTABLISHED)
Finder 169 jarrodvertigan 22u IPv4 0xd74f6520bdf8da15 0t0 TCP localhost:63543->localhost:26164 (ESTABLISHED)
Finder 169 jarrodvertigan 23u IPv4 0xd74f6520bc64c1fd 0t0 TCP localhost:63544->localhost:26164 (ESTABLISHED)
Finder 169 jarrodvertigan 24u IPv4 0xd74f6520bdf8da15 0t0 TCP localhost:63543->localhost:26164 (ESTABLISHED)
Finder 169 jarrodvertigan 25u IPv4 0xd74f6520bc64c1fd 0t0 TCP localhost:63544->localhost:26164 (ESTABLISHED)
sharingd 200 jarrodvertigan 12u IPv4 0xd74f6520bc50bfe5 0t0 UDP *:*
Dropbox 270 jarrodvertigan 15u IPv4 0xd74f6520bc2c71fd 0t0 TCP 192.168.1.53:62466->snt-re3-7a.sjc.dropbox.com:80 (ESTABLISHED)
Dropbox 270 jarrodvertigan 21u IPv4 0xd74f6520bc378a15 0t0 TCP localhost:26164->localhost:63541 (ESTABLISHED)
Dropbox 270 jarrodvertigan 23u IPv4 0xd74f6520bc2c6a15 0t0 TCP localhost:26164->localhost:63542 (ESTABLISHED)
Dropbox 270 jarrodvertigan 26u IPv4 0xd74f6520bdf794dd 0t0 UDP *:17500
Dropbox 270 jarrodvertigan 29u IPv4 0xd74f6520c0a8aa15 0t0 TCP *:17500 (LISTEN)
Dropbox 270 jarrodvertigan 30u IPv4 0xd74f6520bf5e0a15 0t0 TCP localhost:26164->localhost:63543 (ESTABLISHED)
Dropbox 270 jarrodvertigan 31u IPv4 0xd74f6520c185ea15 0t0 TCP localhost:26164->localhost:63544 (ESTABLISHED)
Dropbox 270 jarrodvertigan 37u IPv4 0xd74f6520c18961fd 0t0 TCP localhost:26164 (LISTEN)
CIJScanne 334 jarrodvertigan 4u IPv4 0xd74f6520bc338785 0t0 UDP *:63707
CIJScanne 334 jarrodvertigan 5u IPv4 0xd74f6520bc4634dd 0t0 UDP *:59365
Python 546 root 4u IPv4 0xd74f6520bc50cb55 0t0 UDP 192.168.1.50:53
Python 546 root 7u IPv4 0xd74f6520bc50c96d 0t0 UDP *:63347
Python 547 root 4u IPv4 0xd74f6520bf5e11fd 0t0 TCP 192.168.1.50:80 (LISTEN)
Python 548 root 4u IPv4 0xd74f6520bf6c81fd 0t0 TCP 192.168.1.50:443 (LISTEN)
cupsd 1116 root 11u IPv6 0xd74f6520bcaf0db5 0t0 TCP localhost:631 (LISTEN)
cupsd 1116 root 12u IPv4 0xd74f6520bcaf2a15 0t0 TCP localhost:631 (LISTEN)
cupsd 1116 root 16u IPv4 0xd74f6520bc4dea15 0t0 TCP *:631 (LISTEN)
cupsd 1116 root 17u IPv6 0xd74f6520bcaf0975 0t0 TCP *:631 (LISTEN)
com.apple 1165 jarrodvertigan 58u IPv4 0xd74f6520bc6c6a15 0t0 TCP 192.168.1.53:63524->channelproxy-shv-13-prn1.facebook.com:443 (ESTABLISHED)
com.apple 1165 jarrodvertigan 63u IPv4 0xd74f6520bc6c6a15 0t0 TCP 192.168.1.53:63524->channelproxy-shv-13-prn1.facebook.com:443 (ESTABLISHED)
netbiosd 1226 _netbios 3u IPv4 0xd74f6520bc33a04d 0t0 UDP *:138
netbiosd 1226 _netbios 4u IPv4 0xd74f6520bc33a235 0t0 UDP *:137
Python 1290 root 4u IPv4 0xd74f6520bc46404d 0t0 UDP 192.168.1.53:53
Python 1290 root 7u IPv4 0xd74f6520bc463e65 0t0 UDP *:*
Python 1291 root 4u IPv4 0xd74f6520bc71fa15 0t0 TCP 192.168.1.53:80 (LISTEN)
Python 1292 root 4u IPv4 0xd74f6520bc3791fd 0t0 TCP 192.168.1.53:443 (LISTEN)
iTunes 1300 jarrodvertigan 31u IPv4 0xd74f6520bc76a1fd 0t0 TCP *:3689 (LISTEN)
iTunes 1300 jarrodvertigan 32u IPv6 0xd74f6520bcaed675 0t0 TCP *:3689 (LISTEN)
iTunes 1300 jarrodvertigan 43u IPv4 0xd74f6520bc5e61fd 0t0 TCP 192.168.1.53:3689->192.168.1.52:49161 (CLOSE_WAIT)
iTunes 1300 jarrodvertigan 45u IPv4 0xd74f6520bc64ba15 0t0 TCP 192.168.1.53:3689->192.168.1.52:49160 (CLOSE_WAIT)
iTunes 1300 jarrodvertigan 47u IPv6 0xd74f6520becee675 0t0 TCP macintosh-2.local:3689->apple-tv.local:49187 (CLOSE_WAIT)
iTunes 1300 jarrodvertigan 49u IPv6 0xd74f6520bcaf0535 0t0 TCP macintosh-2.local:3689->apple-tv.local:49184 (CLOSE_WAIT)
com.apple 1451 jarrodvertigan 15u IPv4 0xd74f6520c07911fd 0t0 TCP 192.168.1.53:63491->173.192.82.194-static.reverse.softlayer.com:80 (ESTABLISHED)
com.apple 1451 jarrodvertigan 17u IPv4 0xd74f6520c07911fd 0t0 TCP 192.168.1.53:63491->173.192.82.194-static.reverse.softlayer.com:80 (ESTABLISHED)
Plex\x20M 1466 jarrodvertigan 39u IPv4 0xd74f6520bc7c51fd 0t0 TCP *:32400 (LISTEN)
Plex\x20M 1466 jarrodvertigan 40u IPv4 0xd74f6520bdf8e1fd 0t0 TCP *:32443 (LISTEN)
Plex\x20M 1466 jarrodvertigan 62u IPv4 0xd74f6520c04bf96d 0t0 UDP *:32414
Plex\x20M 1466 jarrodvertigan 67u IPv4 0xd74f6520bc3383b5 0t0 UDP *:32410
Plex\x20M 1466 jarrodvertigan 69u IPv4 0xd74f6520bdf7a04d 0t0 UDP *:32413
Plex\x20M 1466 jarrodvertigan 70u IPv4 0xd74f6520bdf79e65 0t0 UDP localhost:52073
Plex\x20M 1466 jarrodvertigan 71u IPv4 0xd74f6520bdf77c15 0t0 UDP 192.168.1.53:50370
Plex\x20M 1466 jarrodvertigan 72u IPv4 0xd74f6520bc606a95 0t0 UDP localhost:58335
Plex\x20M 1466 jarrodvertigan 73u IPv4 0xd74f6520bdf77475 0t0 UDP 192.168.1.53:50888
Plex\x20S 1467 jarrodvertigan 10u IPv4 0xd74f6520bd0501fd 0t0 TCP *:63219 (LISTEN)
Plex\x20D 1468 jarrodvertigan 15u IPv4 0xd74f6520bc50bdfd 0t0 UDP *:1900
Plex\x20D 1468 jarrodvertigan 18u IPv4 0xd74f6520bc769a15 0t0 TCP *:1328 (LISTEN)
Plex\x20D 1468 jarrodvertigan 21u IPv4 0xd74f6520bdf7a235 0t0 UDP *:12743
Plex\x20D 1468 jarrodvertigan 24u IPv4 0xd74f6520bc50bc15 0t0 UDP *:11693
Plex\x20D 1468 jarrodvertigan 27u IPv4 0xd74f6520be22fa15 0t0 TCP *:32469 (LISTEN)
Plex\x20D 1468 jarrodvertigan 30u IPv4 0xd74f6520c04c06c5 0t0 UDP *:61261
Plex\x20D 1468 jarrodvertigan 33u IPv4 0xd74f6520c0581e65 0t0 UDP *:62140
Plex\x20D 1468 jarrodvertigan 43u IPv4 0xd74f6520bf6c7a15 0t0 TCP localhost:63220->localhost:63219 (CLOSE_WAIT)
Plex\x20D 1468 jarrodvertigan 62u IPv4 0xd74f6520c04bf96d 0t0 UDP *:32414
Plex\x20D 1468 jarrodvertigan 63u IPv4 0xd74f6520bc7201fd 0t0 TCP localhost:32400->localhost:63215 (CLOSED)
Plex\x20D 1468 jarrodvertigan 64u IPv4 0xd74f6520be2301fd 0t0 TCP localhost:32400->localhost:63216 (CLOSED)
Plex\x20D 1468 jarrodvertigan 65u IPv4 0xd74f6520c1895a15 0t0 TCP localhost:32400->localhost:63217 (CLOSED)
Plex\x20D 1468 jarrodvertigan 66u IPv4 0xd74f6520c062ca15 0t0 TCP localhost:32400->localhost:63218 (CLOSED)
Macintosh-2:~ jarrodvertigan$
May apologies for the massive slabs of code I'm copy/pasting, I don't really know how to read it and I just don't want to miss anything.
From what I can tell here nothing is clogging up Port 53 though??