Specify a username with -u
to check whether or not it exists on a platform
capt@deadbadger:~# ./usercheck.py -u notx11
[!] User NOT FOUND here: https://www.instagram.com/notx11
[*] User exists here: https://twitter.com/notx11
[!] User NOT FOUND here: http://pastebin.com/u/notx11
[!] User NOT FOUND here: https://www.reddit.com/user/notx11