PHP AJAX Instant Domain Availability Checker
Bulk Domain Availability Checker Demo

Main Features

1. No external PHP/JavaScript libraries. Just do a php include to add it to your page. It is that easy!
   
   
2. Supports most domains (except .ES as it has no public whois servers)
   
   
3. No mysql needed. PHP 4.4.7 Tested. PHP 5 Tested.
   
   
4. Licenced under Creative Commons Attribution 3.0 License. Free but attribution required!

Bulk Domain Availability Checker

(Limited to 3 domains per submission - configurable in script)