Php similar to myipneighbors.com

i want a simple script that adds all domains to a table that are hosted on one ip. mysql : table1: ip (unique number) - searched (yes or no) table2: ip (number) - domain found script should: 1. take one ip from table1 that searched=no 2. like in [login to view URL] or [login to view URL] does, search for domains hosted in one ip. 3. adds all domains found in table 2 with ip + domain found Thats all. You can make it in perl, php, c++, we have dedicated servers. Wait your answer if you can do this job EXAMPLES: [login to view URL] [login to view URL] [login to view URL] VERY important: Script if possible should not crawle or parse domains I mention as example,script should use google or reverseip or similar, not parsing or depending on any external portal. Im planing to run this script for thousands of ips for several weeks, so those sites will be banning me in few minutes after start using the script, thats why i suggest dont parsing those sites, that that in consideration please to offer me a solution.