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 153 scans
  2. #2 nerdtools.co.uk 75 scans
  3. #3 joehuggans.dev 55 scans
  4. #4 stiftelse-forum.se 40 scans
  5. #5 8.8.8.8 37 scans

Most recent scans

Latest searches across the toolset.

  1. #1 coursgolf.net Mar 17, 21:07
  2. #2 gaido.net Mar 17, 21:07
  3. #3 allerheiligen.net Mar 17, 20:56
  4. #4 turkalemi.net Mar 17, 20:54
  5. #5 landa-nu.se Mar 17, 20:32

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.