Free Network Tools
13 free tools for network diagnostics, IP intelligence, and security analysis. No signup required — just enter a hostname, IP, or domain and get instant results.
What Is My IP
See your public IP, location, ISP, and browser info instantly.
IP Lookup
Look up geolocation, ISP, and network details for any IP.
VPN/Proxy Detector
Check if an IP is behind a VPN, proxy, or datacenter.
DNS Lookup
Query A, AAAA, MX, NS, TXT, and CNAME records.
WHOIS Lookup
Find domain and IP registration details via RDAP.
Reverse DNS
Find the hostname (PTR record) for any IP address.
Blacklist Check
Check if an IP is on spam or abuse blacklists.
CIDR Calculator
Calculate subnet details, host ranges, and netmasks from CIDR notation.
ASN Lookup
Look up organization, country, and IP ranges for any ASN.
HTTP Header Check
Analyze HTTP security headers and get a security grade for any URL.
SSL Certificate Checker
Check SSL/TLS certificate validity, expiry date, and chain details.
Port Scanner
Check open ports on any host. Scan common TCP ports instantly.
Ping Test
Test host latency and packet loss with ICMP ping.
About These Tools
All tools run server-side against our infrastructure — no browser extensions, no downloads, no installation. Results are fetched from the same API that powers our commercial geolocation service, so they reflect real-time data from our fused multi-source database.
Public tools are rate-limited to prevent abuse (15 lookups per day per IP). Need higher limits? Create a free account for 1,000 daily lookups, or check our API pricing for production use.
Network Diagnostic Suite
Our tools cover the full spectrum of network diagnostics: What Is My IP for quick self-checks, IP Lookup for geolocation, DNS Lookup for record queries, Port Scanner for service discovery, Ping Test for latency measurement, and SSL Checker for certificate validation. Use them together to get a complete picture of any host or domain.