Cost / License
- Free
- Open Source (AGPL-3.0)
Platforms
- Online
Germany
EU




Sites and apps similar to Nslookup include Domain Digger, which is free and open source. Other options are DNSdumpster.com, MxToolBox, ip.me and ViewDNS.info. You can choose from more than 10 Network Monitors like Nslookup for Linux.




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.


All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information.



Free DNS related tools including Reverse IP Lookup, DNS Propagation Checker, Chinese Firewall Test, DNS Report and more!

OneDollarDNS monitors your domain’s DNS records and alerts you when their values change. It automatically discovers records and monitors both discovered and manually added records, including A, AAAA, MX, TXT, CNAME, NS, and other common record types.
DNS Lookups, Port Checker, Port Scanner, IP Information Gathering, Hash Generation, Blacklist Check, Subnet Calculator and more..




Check DNS Propagation worldwide. DNS Checker provides name server propagation check instantly. Changed nameservers so do a DNS lookup and check if DNS and nameservers have propagated.

DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering. Explore monitoring products and free DNS tools at DNSstuff.

Instantly check your hostnames current IP Address and other DNS information against a selection of random name servers around the world.
DNSInspect is a web tool which checks domain name servers for common DNS and mail errors and generates a report with explanations how to fix them.