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

About Support Blog Sign in Register

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 155 scans
  2. #2 nerdtools.co.uk 78 scans
  3. #3 joehuggans.dev 65 scans
  4. #4 stiftelse-forum.se 58 scans
  5. #5 pedago.se 48 scans

Most recent scans

Latest searches across the toolset.

  1. #1 bespoke-eng.net Apr 11, 12:13
  2. #2 tptc.co.uk Apr 11, 12:09
  3. #3 otsuki.net Apr 11, 12:02
  4. #4 wnh-th.net Apr 11, 11:49
  5. #5 navalhistory.co.uk Apr 11, 11:06

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.