3 ms·

I think http://whoisology.com http://whoisology.com has been doing this for ages.

• computer22 9y ago
  Hi ohashi, we do not only track the current and historical whois records, but also current and historical DNS records, even for subdomain, which technologies the website uses and even more data which we are currently working on. Maybe try our WHOIS aggregation feature and let us know what you think!
• meowface 9y ago
  So has Domaintools (http://domaintools.com http://domaintools.com) but both are expensive (Domaintools in particular is very expensive) whereas DNSTrails appears to be free unless you want API access.
• hughesey 9y ago
  So has http://viewdns.info http://viewdns.info. Free too.
  • qubex 9y ago
    Great resource, thanks.
• qubex 9y ago
  Can't even try it on one of my own domains (.IT) without paying up first...