On the Internet, there are several public resources that can be used to collect
information regarding a target domain. The benefit of using these resources is that we don't generate network traffic to the target domain directly, so the target domain may not know about our activities.
Following are the resources that can be use
(1)http://www.archive.org :-Contains an archive of websites.
(2)http://www.domaintools.com:-Domain name intelligence.
(3)http://serversniff.net:-Free "Swiss Army Knife" for networking,
serverchecks, and routing
(4)http://centralops.net:-Free online network utilities: domain, e-mail,
browser, ping, traceroute, Whois, and so on.
(5)http://www.robtex.com:- Allows you to search for domain and network
(6)http://www.pipl.com:-Allows you to search people on the Internet by first
and last name, city, state, and country.
(7)http://yoname.com :-Allows you to search for people across social
networking sites and blogs.
(8)http://wink.com:-Free search engine to find people by name, phone
number, e-mail, website, photo, and so on.
(9)http://www.isearch.com:- Free search engine to find people by name, phone
number, and e-mail address.
(10)http://www.tineye.com:- TinEye is a reverse image search engine. We can use
TinEye to find out where the image came from, how it is being used, if modified versions of the image exist, or to find higher resolution versions.
(11)http://www.sec.gov/edgar.shtml :- To search for information regarding public listed companies in Securities and Exchange Commission.