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

Scan any domain or IP in seconds.

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

Hide results ? When enabled, this scan will not appear in the most recent searches or the scan leaderboard.

Scan leaderboard

Most searched domains and IPs.

  1. #1 google.com 174 scans
  2. #2 nerdtools.co.uk 84 scans
  3. #3 stiftelse-forum.se 72 scans
  4. #4 joehuggans.dev 71 scans
  5. #5 pedago.se 54 scans

Most recent scans

Latest searches across the toolset.

  1. #1 ice-systems.net May 22, 18:00
  2. #2 thenutshouse.se May 22, 18:00
  3. #3 scaleorder.se May 22, 18:00
  4. #4 growfeedcare.net May 22, 18:00
  5. #5 zrely.sk May 22, 18:00

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. Short links are available when you need them.