>If on you're local server you're able to do a DNS lookup for the >abc.com/net/org (e.g. via ping, dig or another tool -- I'm not a DNS >wizard), and find that a host such as www.abc.com exists, you don't >need to query OpenSRS as it is definitely unavailable. Assuming local >lookups via your local DNS server is faster than querying OpenSRS, >you've just saved some time.
I'm sure there're many tricks to lookup domains faster, I even considered to rent a server at the USA to check domains availability from there, and then take the results to our servers at Spain through one unique query. As you say, checking "WHOIS / Nameservers existence" first may speed up checking sometimes, but in the case we check for a name that is available on all of its extensions, delay for displaying results could be near the double, so I don't think it's a good idea. I don't think it's difficult to develop a new API command in order to check several names at once, while it's true that OpenSRS will lookup different extensions at different registries, we'll save many time communicating with OpenSRS servers. Regards, David S�nchez >If instead you find that the host doesn't exist (e.g. for www.abc.org), >this does NOT mean that the domain is available (e.g. a domain with no >name servers, or that was just registered 10 millisecond ago). In this >case, you must still send OpenSRS the availability check command (in >which case you've wasted some time, as you could have queried OpenSRS >directly). > >The question is, are more domains available than are not available? >Depending on the ratio, you might save some time doing the above, on >average... > >Another option might be to cache the root zone file locally, as that >would make lookup times for definitely unavailable domains almost >instantaneous. Although, it's an enormous file....(not sure if diffs >are available daily??). > >Sincerely, > >George Kirikos >http://www.kirikos.com/ > > >__________________________________________________ >Do You Yahoo!? >Send FREE video emails in Yahoo! Mail! >http://promo.yahoo.com/videomail/ David S�nchez Veloxia Network,S.L. [EMAIL PROTECTED]
