domainCart is mobile responsive PHP shopping cart with jQuery AJAX for selling domain and web hosting related services. Ajax domain checker with whois lookup tool, adding domain and hosting related services to the shopping cart and completing order are all controlled from one page. It supports over 700 domain extensions, 27+ online payment gateways, multi-currency with auto exchanger. It is best free alternative to WHMCS hosting billing software (pay once to use lifetime free use)