Free Online Network Tools
IP lookup, DNS queries, WHOIS, HTTP headers, SSL checks, subnet calculators, and more networking utilities.
IP Lookup
Find your IP address and geolocation info.
DNS Lookup
Query DNS records for any domain (A, AAAA, MX, TXT, NS).
WHOIS Lookup
Look up domain registration and ownership details.
HTTP Headers
View HTTP response headers for any URL.
SSL Checker
Check SSL/TLS certificate details for any domain.
Port Scanner
Check common port status for a given host.
Ping/Speed Test
Test connection speed and latency to various servers.
Subnet Calculator
Calculate subnet masks, IP ranges, and CIDR notation.
MAC Address Lookup
Identify the manufacturer from a MAC address.
User Agent Parser
Parse and analyze browser user agent strings.