Instantly find location, ISP, timezone and network type for any IP
Location
City, region & country
ISP & ASN
Network & organization
Timezone
Local time & UTC offset
Interactive Map
Visual pin on map
Network Type
Hosting, proxy, mobile
Reverse DNS
Hostname lookup
Quick lookups
Enter an IP or domain to see it on the map
Enter an IP address or domain name like google.com. Leave the field empty to instantly find your own public IP — the fastest way to answer "what is my IP?"
See city, region, country, postal code, coordinates, ISP, organization, AS number, timezone, reverse DNS, and connection type — all from a single lookup.
Your results are plotted on a live map you can zoom and pan. Drill down from country level to street level to understand exactly where an IP is located.
An IP lookup (also called an IP check or IP address lookup) is the process of taking a public IP address and resolving it to information about its owner, location and network. Our free IP checker works with IPv4, IPv6 and domain names — type any address into the search box above and you get back city, region, country, postal code, ISP, ASN, reverse DNS hostname, timezone, and connection type in under a second. There is no signup, no API key and no rate limit for normal use.
Network engineers, security analysts, marketers and developers use an IP address checker every day to diagnose problems and understand traffic. Common reasons to lookup an IP address include verifying where a visitor is connecting from, identifying the ISP or hosting provider behind a server, tracing a suspicious login, confirming that DNS changes have propagated to the right IP, and detecting whether an IP belongs to a VPN, proxy, datacenter or Tor exit node.
Behind the scenes, every IP check query runs against a commercial-grade IP intelligence database that cross-references geolocation, ASN, BGP routing data, reverse DNS, and known network-type signatures. When you enter a domain, we first resolve it to its A/AAAA records using public DNS resolvers, then look up the resolved IP. When you enter an IPv4 or IPv6 address directly, we skip DNS resolution and run the IP check immediately. Results are returned as structured data, plotted on an OpenStreetMap-powered map, and made one-click copyable.
Unlike many free IP address lookup tools, we do not log queries against your account, paywall the IPv6 results, or hide ASN and reverse-DNS data behind a "premium" tier. Every field returned by a lookup IP request is visible immediately, and every related tool — WHOIS, DNS, blacklist check, IP reputation, port checker — is one click away from the result panel.
| Capability | LookMyIP | Typical Free IP Checker |
|---|---|---|
| IPv4 & IPv6 lookup | Both, no paywall | Often IPv4 only |
| Domain name lookup | Yes — auto-resolves to IP | Sometimes |
| ASN & reverse DNS | Included free | Premium tier |
| Network type detection | Hosting, VPN, proxy, mobile, satellite | Limited |
| Interactive map | OpenStreetMap, zoomable | Static thumbnail |
| Signup / API key | Never required | Often required |
| Ads & trackers | Ad-free | Heavy ads |
Looking for a specific check? Use our What Is My IP page to see your own public IP, the WHOIS lookup for ownership records, the IP reputation checker to score risk, or the IP blacklist check to see whether an address is flagged on major DNSBLs.
From IP geolocation to DNS lookups, SSL checks to speed tests — every tool you need to troubleshoot, analyze, and understand networks. Completely free, no signup.
Check whether an IP address appears on major DNS-based blacklists (DNSBLs). Quickly find out if your mail server or web server IP has been flagged for spam or abuse.
Assess the threat reputation of any IP address. Detect VPNs, proxies, Tor exit nodes, data center ranges, and known malicious hosts to evaluate security risk before allowing access.
Test whether your VPN or proxy is actually protecting you. Detect WebRTC leaks, proxy header leaks, and see exactly what information your IP address reveals to every website you visit.
Instantly verify any website's SSL/TLS certificate. Check issuer, validity period, expiry date, and certificate chain. Ideal for diagnosing HTTPS issues before they affect users.
Verify whether a domain’s DNS responses are cryptographically signed and validated. Inspect DS, DNSKEY, key tags, and algorithms, and detect broken or missing chains of trust.
Inspect HTTP response headers and security headers for any website. Check HSTS, Content Security Policy, X-Frame-Options, and more to evaluate a site's security posture.
Trace every 301/302/307/308 hop a URL goes through to reach its final destination. Spot long chains, HTTPS-to-HTTP downgrades, and redirect loops that hurt SEO and security.
Validate the email authentication records on any domain. Surface SPF lookup-limit issues, missing or weak DMARC policies, DKIM keys under 2048 bits, and other deliverability problems.
Check whether a specific port is open or closed on any IP address or domain. Test single ports or scan all common ports at once to diagnose firewall and connectivity issues.
Query DNS records for any domain — A, AAAA, CNAME, MX, NS, TXT, SOA, and more. Instantly see what DNS servers return for a given hostname without needing command-line tools.
Check whether your DNS changes have propagated across global resolvers. See real-time results from multiple DNS servers worldwide to confirm your records are live everywhere.
Look up MX (Mail Exchange) records for any domain to see which mail servers handle incoming email. Essential for diagnosing email delivery problems and verifying mail configuration.
Look up domain registration records including registrar, owner, creation date, expiry date, and nameservers. Useful for checking domain availability and ownership history.
Look up the PTR hostname for any IPv4 or IPv6 address and forward-confirm it back to the original IP. Essential for diagnosing email deliverability and identifying server ownership.
Instantly find your public IP address with full geolocation details. See your city, ISP, timezone, and whether you're on IPv4 or IPv6 — no input needed, just visit the page.
Measure your real-time internet download and upload speed directly from your browser. No Flash, no plugins — just an accurate speed test with latency and jitter readings.
Learn how IP addresses, DNS, subnetting, ASNs, and network protocols work. Beginner-friendly guides covering everything from IPv4 vs IPv6 to how geolocation databases are built.
