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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 282 scans
  2. #2 joehuggans.dev 176 scans
  3. #3 nerdtools.co.uk 174 scans
  4. #4 stiftelse-forum.se 156 scans
  5. #5 pedago.se 127 scans

Most recent scans

Latest searches across the toolset.

  1. #1 redleader.co.uk May 26, 17:12
  2. #2 adv-lab.net May 26, 17:12
  3. #3 caspublishing.org May 26, 17:12
  4. #4 mountain-west.net May 26, 17:12
  5. #5 majorsmatter.net May 26, 17:11

Canonical Scan Page

Scan results for theodorclaussen.se

theodorclaussen.se risk: low (28/100). Security headers report 5 issue(s); strengthen CSP/HSTS and related headers. SPF configuration has advisories; tighten sender policy and lookup usage. SEO checks found 4 advisory item(s); address indexing and metadata issues. Last scanned 2026-05-26 17:06 UTC.

LOW RISK 28/100

Highlights

Key Facts

  • Blacklists: clear (8 checked).
  • Security headers issues: 5.
  • SEO advisories: 4.
  • SPF has advisories.

Coverage

6 of 5 required scan signals are currently cached for theodorclaussen.se.

Last summary update: 2026-05-26 17:06 UTC

Full scan page Canonical public report for theodorclaussen.se. Blacklist Check Supporting detail view for the canonical scan page. DMARC Check Supporting detail view for the canonical scan page. DNS Lookup Supporting detail view for the canonical scan page. IP Info Supporting detail view for the canonical scan page. IP Reputation Supporting detail view for the canonical scan page. MX Check Supporting detail view for the canonical scan page. SEO Check Supporting detail view for the canonical scan page. Ping Supporting detail view for the canonical scan page. Port Scan Supporting detail view for the canonical scan page. SPF Check Supporting detail view for the canonical scan page. SSL Check Supporting detail view for the canonical scan page. Security Headers Supporting detail view for the canonical scan page. WHOIS Lookup Supporting detail view for the canonical scan page.

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.