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Free Domain & IP Lookup Tools Online

Free domain and IP lookup tools for network administrators, developers, and IT professionals. Find your public IP address, perform DNS lookups, query WHOIS records, and check domain availability.

Network troubleshooting often starts with basic lookups: what IP am I connecting from? What DNS records does a domain have? Who owns this domain? These tools provide instant answers without requiring any software installation or login.

What Is My IPFind your public IP address, ISP, and approximate location.DNS LookupQuery DNS records (A, MX, CNAME, TXT, NS) for any domain.WHOIS LookupLook up domain registration and ownership data.Reverse IP LookupFind domains hosted on a given IP address.

Frequently Asked Questions

What is my public IP address?

Your public IP is the address your Internet Service Provider (ISP) assigns to your network. It is visible to websites you visit. Use the "What Is My IP" tool to find it instantly.

What is a DNS lookup?

A DNS lookup queries the Domain Name System to find the records associated with a domain: A records (IPv4), AAAA records (IPv6), MX records (email), TXT records (SPF, DKIM), CNAME records, and NS records.

What does WHOIS lookup show?

WHOIS shows domain registration data: registrar, creation date, expiry date, and (if not privacy-protected) registrant name and contact information.

Are these IP lookups accurate?

IP geolocation accuracy varies: country-level is typically 95%+ accurate. City-level accuracy is lower (50–80%) and depends on the IP database used.