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 168 scans
  2. #2 nerdtools.co.uk 80 scans
  3. #3 stiftelse-forum.se 71 scans
  4. #4 joehuggans.dev 70 scans
  5. #5 pedago.se 53 scans

Most recent scans

Latest searches across the toolset.

  1. #1 quizgamer.se May 16, 15:34
  2. #2 acumenassessments.net May 16, 15:31
  3. #3 baastrup.se May 16, 15:19
  4. #4 first-comm.net May 16, 15:19
  5. #5 vedfan.nu May 16, 15:19

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.