WHOIS Details:

WhoisDog failed to connect to WHOIS server: whois.registry.gy

Root Zone Database:
https://www.iana.org/domains/root/db/gy.html

Try these WHOIS services:
http://whois.registry.gy
http://tian.hu/mag.gy
http://whois.gd/mag.gy
http://who.cx/mag.gy
http://whois.domaintools.com/mag.gy
https://whois.gandi.net/en/results?search=mag.gy
https://www.godaddy.com/whois/results.aspx?checkAvail=1&domain=mag.gy&prog_id=GoDaddy
https://www.namecheap.com/domains/whois/results.aspx?domain=mag.gy
https://who.is/whois/mag.gy/