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 joehuggans.dev 70 scans
  4. #4 stiftelse-forum.se 69 scans
  5. #5 pedago.se 53 scans

Most recent scans

Latest searches across the toolset.

  1. #1 natursalvan.se May 16, 07:40
  2. #2 mc2dn.name May 16, 07:32
  3. #3 nettansenergikalla.se May 16, 07:30
  4. #4 dunkellighting.se May 16, 07:25
  5. #5 rayashop.se May 16, 07:23

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.