The host at this IP address is obviously operated by cybercriminals. It is running a malware botnet controller which is being used to control infected computers (bots) around the globe using a trojan horse.
Malware botnet controller located at 104.21.69.102 on port 443 TCP:
$ telnet 104.21.69.102 443
Trying 104.21.69.102…
Connected to 104.21.69.102.
Escape character is ‘^]’
$ dig +short gle-analytics.xyz
104.21.69.102
Referencing malware samples:
MD5 3f6692b05f3eeb11e0bcfa4bedea7a00
MD5 5a53eb5e4c412178983a706d97610b8c