[URGENT] Domain availability Script - DNS/WHOIS - Bulk

Bulk check domain availability – double layer authentication: Basically we’re looking for a way to bulk check millions of domains for their availability. To do this we have 2 options – NS lookup and Whois lookup. 1) Nameserver lookup – check if the domain is being hosted somewhere – quick/fast/efficient process, but if the domain is registered but not hosted it will show as “available” 2) Whois Lookup – checks if the domain has valid registrant details – 100% accurate but much slower. What we need to do here is check all these domains in a dual fashion. We check them all at a very fast rate to see if they are being hosted externally anywhere, all domains that pass this test will then be checked via the whois method. This script is going to be implemented into a wordpress plugin that has already been developed already with multithreading + bulk proxy support. Essentially the –plugin searches google for a particular search term (example: inurl:blogroll “links” “keyword”) The plugin then scrapes those pages for all the urls listed on them, then checks them if they can be registered. We’re trying to find domains that can be registered here – in an effort to register them and build mini SEO sites on them. This plugin will be used heavily and will scrape + check millions of domains a month, so we need a good robust system that can be implemented into our WP plugin – using your language + methodology of choice. Please let me know if you’ve done this before, and your price + estimated timeframe. No copy paste bids rubbish, I’m only after serious individuals – make sure your first sentence is spot on :)