Free IT tools

Troubleshoot DNS, email, and connectivity problems faster.

Run practical diagnostics for the issues IT teams hit every day: unreachable hosts, DNS lookup problems, open ports, mail server misconfiguration, blacklist checks, and domain intelligence.

Run Ping Check Mail Server Inspect Domain
Network diagnostics Ping, DNS lookup, traceroute, port checks, WHOIS, and IP research. Email diagnostics MX tests, mailbox checks, POP3/IMAP tests, and blacklist lookups. Need automation too? Use the DNS API when troubleshooting should become a repeatable workflow.

Web Tech
Identify website/server technology from headers, HTML fingerprints, and DNS data.
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