From command line, you can do:
curl --data "raw=1&username=<USERNAME>&password=<PASSWORD>&domain=&ip=<IP>" https://dns.qdnx.org/
Or you can bookmark the address and use GET (note this sends your password less securely). Here we're omitting the IP so it will use your own:
https://dns.qdnx.org/?raw=1&username=<USERNAME>&password=<PASSWORD>&domain=
