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 137 scans
  2. #2 nerdtools.co.uk 57 scans
  3. #3 8.8.8.8 37 scans
  4. #4 tcpcheck.com 25 scans
  5. #5 prosys.net 25 scans

Most recent scans

Latest searches across the toolset.

  1. #1 kitchenaidattachments.net Feb 6, 20:20
  2. #2 polkcountyne.org Feb 6, 20:20
  3. #3 nellosscottsdale.org Feb 6, 20:20
  4. #4 art2arch.net Feb 6, 20:19
  5. #5 smartdogz.se Feb 6, 20:18

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.