NerdTools Fast, free online tools for sysadmins, developers, and nerds.

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Scan any domain or IP in seconds.

Run WHOIS, DNS, SSL, security headers, blacklist checks, and more from a single interface. No registration required.

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Scan leaderboard

Most searched domains and IPs.

  1. #1 google.com 153 scans
  2. #2 nerdtools.co.uk 78 scans
  3. #3 joehuggans.dev 61 scans
  4. #4 stiftelse-forum.se 46 scans
  5. #5 pedago.se 40 scans

Most recent scans

Latest searches across the toolset.

  1. #1 burfordbarn.co.uk Mar 26, 11:17
  2. #2 fescoonlinebill.se Mar 26, 11:16
  3. #3 sven-play.se Mar 26, 11:00
  4. #4 fusigi.net Mar 26, 10:56
  5. #5 stiftelse-forum.se Mar 26, 10:56

Why NerdTools?

Everything in one place

Stop juggling browser tabs. Run WHOIS, DNS, SSL, security headers, blacklist checks, and more from a single page.

Built for speed

Results load fast. No sign-up walls, no waiting around. Just enter a domain and go.

Free to use

Core scans are completely free. Create an account to unlock uptime monitoring, screenshot tracking, and saved reports.