Network Tools

One box for every lookup: enter a domain, IP, email, URL or ASN and jump straight to DNS, WHOIS, SSL, blacklist, email-auth and security checks.

Ping any hostname or IP address to verify connectivity and measure round-trip time. Essential for diagnosing network issues and checking server availability.

Trace the route packets take to reach any destination. See every hop, identify bottlenecks, and diagnose routing problems with our visual traceroute tool.

Scan any host to discover open ports and identify running services. Essential for security audits, firewall testing, and network troubleshooting.

Discover the optimal MTU size for any network path. Avoid fragmentation, reduce overhead, and optimize network performance with accurate MTU detection.

See network latency to locations around the world displayed on an interactive heatmap. Identify high-latency regions and optimize your network strategy.

Fingerprint remote hosts to identify running services, operating systems, and software versions. Useful for security assessments and network reconnaissance.

Test your internet connection to measure download speed, upload speed, ping, and jitter. Get accurate results and compare against your ISP's promised speeds.

Look up any MAC address to identify its manufacturer and device vendor. Our OUI lookup queries the IEEE registry to reveal hardware maker details instantly.

Generate random, valid MAC addresses (locally-administered or vendor-prefixed) in bulk and any format. A free MAC address generator for testing and labs.

Free IPv6 toolkit: compress and expand addresses (RFC 5952), build ip6.arpa reverse DNS, convert to integer, calculate CIDR blocks, and generate Global, ULA & Link-Local addresses.