Efficient! Checks whether DNS entries exists, if not, performs a WHOIS query and interprets the results.
Up to 3 checks to ensure a domain is truly and really available. Checks can be disabled for performance at the cost of accuracy.
Supports most domains.
Supports Recaptcha to prevent misuse of the script. Can be disabled.
Supports limitation of TLDs allowed to be checked (i.e. allow checking of only a list of TLDs)
Keeps a list of available domains in a separate box. Can be disabled.
Big Availability Text to show whether the domain is available. Can be disabled.
No MySQL required.
Allows specifying a generalized customizable link for visitors to register whenever any searched domain is available
Allows specifying a customizable link on a per TLD level for visitors to register a domain whenever any searched domain with that TLD is available
Supports Full Whois Query display for an unavailable domain with recaptcha support
Customizable Language - Just replace the variables in $language to your language
Tested to be working under PHP 4.4.7 and PHP 5
HTML4 Strict Compliant.
Less than 100 lines of HTML code. Easy customizability
Only US$9.99 for the whole package
Note: If the checker is configured to check domains by performing Whois checks (one of the 3 checking methods), it would be limited to as much as the domain registrar will allow as they have a limit on the number of times the domains can be checked. Hence the script is NOT designed to check hundreds or thousands of domains within a short time, especially with the Whois method check enabled.
The following is a live demo. For every recaptcha entry, the script is configured to allow TEN domain checking / whois queries.