Free IP & Network Tools

Instantly reveal your public IPv4 and IPv6 address

Look up any IP address for ISP, location, and ASN details

Check if your connection supports IPv6 addressing

Map IP addresses to country, city, and coordinates

Resolve domain names to their hosting IP addresses

Look up geolocation and ISP data for multiple IPs at once

Find autonomous system number, name, and network prefix

Calculate network, broadcast, and host range from CIDR

Convert IPv4 addresses to IPv4-mapped IPv6 notation

Analyze CIDR blocks — first IP, last IP, and address count

Find your local LAN IP and public IP side by side

See your IP address, city, country, ISP, and map location

Query A, AAAA, MX, TXT, NS, and CNAME records

Detect if your DNS queries bypass your VPN tunnel

Resolve IP addresses to hostnames via PTR records

Resolve a domain name to its hostname and IP addresses

Analyze whether your IP appears to use a VPN or proxy

Detect transparent, anonymous, and elite proxy usage

Check if an IP is listed on spam and abuse blacklists

Validate SSL/TLS certificates and expiration dates

Check if your email appeared in known data breaches

Learn how to hide your IP with VPNs and privacy tools

View detailed browser, OS, and device fingerprint data

Parse and analyze HTTP user-agent strings

Inspect HTTP request and response headers

Parse email headers to trace sender route and authentication

Generate strong random passwords with custom rules

Retrieve domain and IP registration WHOIS records

WHOIS and RDAP registration data for any IP address

Test if common ports are open on a host

Scan common ports (21, 22, 80, 443, 3389…) on any host

Measure latency to any hostname or IP address

Trace the network path packets take to a destination

Measure download, upload, ping, and jitter for your connection

Verify if a URL is reachable and check HTTP status