AskDNS is described as 'Reverse IP Lookup lets you discover other domain names hosted on any given IP address'. There are six alternatives to AskDNS, not only websites but also apps for Self-Hosted solutions. The best alternative is DomainTools, which is free. Other great sites and apps similar to AskDNS are ViewDNS.info (Free Personal), CubDomain (Free), Ponderworthy's Whois (Free) and Domains Index (Freemium).
- 6 alternatives