Whoisdomaincheckup 4.0

Whoisdomaincheckup is a Web-based (PHP) application that can check the registration status of a domain name.
In particular, Whoisdomaincheckup can check whether a domain name is currently free for registration. It doesnt use any exec or system commands, but instead uses the fopen command to access the Whois servers.
Its not using any system calls! Its opening a socket to the whois server. So it should run on any server with PHP4 or higher installed! Download, untar, upload to your server and point your browser to the whois.php, and youre ready for business! If every thing was that easy...
This new version does parallel scanning. And the triggers are set per server. The old version scanned wrong!! You should upgrade to this version for better results!
In the example some domains just fail, thats my firewall, on your server they may work, but keep in mind that some firewalls block outgoing ports. For whois that is port 43 and for http 80 and for https 443.
Enhancements:
- The whole class was rewritten.
- The wrong triggers were fixed.
- An application example was added.