WHMCS and DAS
WHMCS uses the whois in order to perform domain name availability checks. See http://docs.whmcs.com/Domains_Configuration#Adding_Additional_WHOIS_Services
The search is fast
The search is not reliable due to the fact that:
- A deleted domain name in redemption or quarantine status are sometimes no longer displayed into the whois
- Registry reserved/blocked domain names are sometimes not displayed into the whois
- some countries doesn't provide a whois or respond very slowly
- the domain name syntax is often not managed by the whois.
In addition, the whois doesn't make any difference between a regular domain name and a premium one
However, even if this mode is fast, it is not reliable because a domain name that is not published into the whois doesn
With NETIM, a domain registration is done with the function domainCreate. However this function will be closed until the start of the general availability. In case of pre-order, the function domainCreateLP must be used.
By using an additional field as a checkbox, it will be possible to tell the customer that his registration will be done during the general availability and to get his explicit approval.