Find DNS records in order to identify the Internet footprint of an organization. Recon that enables deeper security assessments and understanding of the potential attack surface.
Cost / License
- Free
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Ponderworthy's Whois is described as 'A simple, reliable, and fast lookup, of the whois database systems, for Internet domains' and is an website. There are more than 25 alternatives to Ponderworthy's Whois, not only websites but also apps for a variety of platforms, including Windows, Linux, Mac and Self-Hosted apps. The best Ponderworthy's Whois alternative is DNSdumpster.com, which is free. Other great sites and apps similar to Ponderworthy's Whois are JsonWhois.io, WhoisAPI, ViewDNS.info and DomainTools.
Find DNS records in order to identify the Internet footprint of an organization. Recon that enables deeper security assessments and understanding of the potential attack surface.


JsonWhois is the leading cloud hosted Whois API. The service serves WHOIS records for domains and IP addresses through a fully RESTful API. Additionally, the service offers IP geolocation and URL to screenshot services. Free usage per month!.


WhoisAPI is the premier provider of freshly parsed whois data for domain names and IP addresses, also providing IP to geolocation, HTML to PDF, and domain availability RESTful HTTP APIs. Billing is performed on a pay as you go basis, free monthly use.




Free DNS related tools including Reverse IP Lookup, DNS Propagation Checker, Chinese Firewall Test, DNS Report and more!
Domain name research, including comprehensive Whois Lookup, Reverse Whois Lookup and Whois History. Domain name monitoring tools and buyer/seller tools...

Active Whois Browser is useful network information utility what allow finding information about owners of internet domains and IP adresses. Lookup country, persons and postal adresses of who use domain or IP address.




NameCheckup is a search tool for available usernames and domains across numerous social networks and popular websites with millions of users. Find available social media handler for your startup, personal brand, business.


Here you will find everything you need to know about domains, DNS, IP addresses, routes, autonomous systems, and much, much more!.
WebCargo provides robust and responsive REST APIs across all categories, backed up with fast support and clear, pay as you go pricing tariffs enabling large bulk usage discounts.




Whoisology is a searchable domain name reverse whois / ownership database with over one billion individual domain name records that are updated pretty regularly.

Whois domain information such as registrar, domain status, expiration date, and name servers.

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