What is an IP address and why should I know it?

An IP address (Internet Protocol address) is a unique numeric identifier of a device on the network. Knowing your IP is needed for router setup, remote access, VPN verification, network diagnostics, and understanding what information about your location and ISP is visible to websites.

What is the difference between IPv4 and IPv6?

IPv4 is the older format with 4 groups of numbers (e.g., 192.168.1.1) — about 4.3 billion addresses total. IPv6 is the new format with 8 groups of hexadecimal numbers (e.g., 2001:db8::1) with a virtually unlimited address pool. Both formats work in parallel; our service detects both.

How accurate is IP-based geolocation?

Country detection via IP is ~99% accurate, city-level ~55–80%. Exact coordinates (street, house) cannot be determined via IP — the GeoIP database only stores the geographic center of the city or the ISP region. For mobile networks, accuracy is lower.

Can I hide my IP address?

Yes. Use a VPN, proxy, or the Tor browser. A VPN is the most popular and convenient option: it routes your traffic through a server in another country and masks your real IP. If a different country is shown on this page after enabling the VPN, your VPN works correctly.

Is IP checking safe and anonymous?

Yes. We do not require registration, we do not store your request history, and we never link checks to accounts. Data is processed in real time and not shared with third parties. The service runs over HTTPS with a valid SSL certificate.

What are WHOIS and DNS, and why do I need them?

WHOIS is a public database about the domain owner (registrant name, registration date, NS servers). DNS (Domain Name System) translates a domain name (example.com) into an IP address. Checking DNS is useful for website troubleshooting, email setup (MX records), and monitoring hosting migrations.

Check My IP Address and Domain Online

Instantly get comprehensive information about any IP address or domain: geolocation, ISP details, security analysis, DNS records and more. Professional IP geolocation and domain analysis tool.

Identify device IP address, check static IP or local IP, find network IP with full geolocation

How to Determine Computer, Router and Server IP Address

IP Address Types

• Your IP Address - external internet connection IP
• Local IP - internal network IP address
• Router IP Address - home network gateway
• Static IP - permanent IP address
• Server IP Address - web server address

IP Address Checking Methods

• In Windows: cmd → ipconfig /all
• In macOS/Linux: ifconfig or ip addr
• In router: web interface 192.168.1.1
• Online services: automatic detection
• Network settings: connections and adapters

Useful IP Information

• Geolocation shows city and country
• ISP - your internet provider
• ASN - network autonomous system
• VPN/Proxy - anonymization analysis
• DNS records - complete technical information

Complete IP Address Check with Extended Analysis

Our service helps you find your IP and get detailed information about any IP address. You can check computer IP address, determine router IP address, find server IP address or any other device on the network. We provide complete IP check with location detection, provider information, security analysis and VPN detection. You can also find IP address of any website or domain, get DNS records and ASN information. Analysis of both static IP and dynamic addresses is supported, including local IP and network IP addresses.

IPv4 vs IPv6: key differences

A quick comparison of the two Internet Protocol versions

Feature	IPv4	IPv6
Year introduced	1981	1998 (widespread since 2010s)
Address length	32 bits	128 bits
Notation	192.168.1.1	2001:0db8:85a3::8a2e:0370:7334
Address space	~4.3 billion	~340 undecillion
Header size	20–60 bytes	40 bytes (fixed)
NAT required
Built-in IPsec
Auto-configuration (SLAAC)
Internet adoption	100%	~45% (growing)

IPv4 and IPv6 run in parallel — modern networks and devices support both (dual-stack). Our service detects both address types.

Who needs an IP checker

Four types of users who rely on IPChecker Pro every day

IT administrators

Network diagnostics, server availability checks, open ports, WHOIS domain lookups, DNS record audits, SSL certificate validation.

Gamers

Find game server IPs, measure ping and internet speed, detect VPN/proxy opponents, troubleshoot connection issues.

Developers

Verify VPN tunnels, test APIs across regions, debug DNS after changes, monitor production servers, perform WHOIS lookups.

Everyday users

Find your own IP, verify VPN operation, identify your ISP, see what websites know about you, check a static IP.

Why choose IPChecker Pro

Three reasons why thousands of users trust us with IP checks every day

Results in 1 second

Instant IP detection, geolocation, ISP and DNS records — no delays, no CAPTCHAs.

Fully private

We do not store check history, do not sell data, and never require login. Everything is processed anonymously.

No signup, no ads in reports

No popups, no mandatory subscriptions. All tools are free with no request limits.

Frequently asked questions about IP checking

Answers to the most popular questions from our users

Open our homepage — your public IP address will be detected automatically in 1 second. You will see the IP itself, country, city, ISP, ASN, timezone, and a location on the map. To check another IP or domain, enter it in the search field and click "Check".

What our network diagnostic tools do

A full suite of free utilities for IT pros, marketers, gamers and everyday users. Everything runs in the browser — no install needed.

IP and domain lookup

Find your public IP and get detailed information about any IPv4/IPv6 address: geolocation (country, city, coordinates), ISP, ASN, timezone, DNS records, VPN/proxy/Tor detection. Domain names are automatically resolved to IPs so you can look up a site's hosting data.

Keywords: my IP, IP lookup, check IP address, IP geolocation

WHOIS Lookup — domain owner check

Get full domain registration data: owner, registration date, expiration, registrar, name servers. Works for .ru, .com, .net, .org, .io and 300+ other TLDs. Useful when vetting suspicious sites, buying domains, or investigating fraud.

Keywords: WHOIS, domain owner, registrar, domain age

DNS Lookup — all DNS records

Inspect every DNS record type for a domain: A, AAAA, MX, TXT, CNAME, NS, SOA, CAA. Great for configuring email (SPF, DKIM, DMARC), migrating a site, debugging CDN, and troubleshooting mail delivery. Answers in a second straight from authoritative servers.

Keywords: DNS records, A record, MX record, SPF DKIM, NS lookup

Port Checker — open port scan

Check TCP/UDP ports on any IP or domain: 22 (SSH), 80/443 (HTTP/S), 25/465/587 (SMTP), 3306 (MySQL), 3389 (RDP), 5432 (Postgres), game ports and more. Diagnose firewall issues, confirm router port forwarding, and verify that services are reachable from the internet.

Keywords: port checker, open port, TCP port, UDP port, port forwarding

Speed Test — internet speed measurement

Accurate connection test: download, upload, ping and jitter. Runs right in your browser — no Flash, Java or native apps. Works for Wi-Fi, wired, and mobile, and is great for gauging quality of service to gaming and streaming providers.

Keywords: speed test, ping test, internet speed, wifi speed

Security Check — connection audit

Full connection security check: VPN/proxy/Tor detection, DNS and WebRTC leak test (when a VPN exposes your real IP), and IP threat reputation lookup against public blocklists. Ideal for auditing a VPN provider and validating your anonymity.

Keywords: DNS leak, WebRTC leak, VPN detection, anonymity check

Internet Cemetery — dead sites archive

A unique catalog of shut-down internet services: why Google Reader closed, what happened to Vine, the fate of Yahoo! Answers. An archive of internet history with reasons, dates and screenshots — nostalgic and educational.

Keywords: dead sites, internet history, shut down services, internet archive