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Security report for dns-lookup.com

CircleCell · Technology · N/a

Medium risk. 7 critical or high findings in Email security, Security headers and 2 other checks.

Security score

61/100

Risk levelMedium

0–100, higher is better. How it is calculated

DNS-Lookup.com is a specialized online tool operated by CircleCell that provides free DNS and IP lookup services. It targets developers, IT professionals, and users seeking detailed DNS record information. The website offers a straightforward user experience with a clean design and functional navigation, supported by advertising revenue. The domain is mature, having been registered since 2002, and uses Cloudflare for DNS and likely hosting services, ensuring reliable performance and security. The technical infrastructure includes modern web technologies and integration with Google Analytics and BuySellAds for tracking and monetization. Security posture is adequate with HTTPS enforced and domain transfer protection enabled, but lacks DNSSEC and security headers, which are recommended improvements. Privacy compliance is basic, with a privacy policy present but no cookie consent mechanism or GDPR indicators. No contact emails or phone numbers are explicitly provided, though a contact form is available. Overall, the site is legitimate, functional, and serves a niche market effectively, but could enhance security and privacy practices to improve trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 100 · Medium
Checks completed
7of 7

NIS2 Art. 21(2)

  1. (a) Risk analysis and security policies: Not visible from outside
  2. (b) Incident handling: One indicator
  3. (c) Business continuity, backups and crisis management: Not visible from outside
  4. (d) Supply chain security: Not visible from outside
  5. (e) Secure acquisition, development and maintenance, including vulnerability handling: Partly checked
  6. (f) Assessing the effectiveness of security measures: Not visible from outside
  7. (g) Cyber hygiene and security training: Not visible from outside
  8. (h) Cryptography and encryption: Partly checked
  9. (i) HR security, access control and asset management: One indicator
  10. (j) Multi-factor authentication and secured communications: Not visible from outside

This scan rated NIS2 with an earlier keyword method that is no longer shown; rescan for the per-article view. Risk management, continuity, supply chain, training, MFA, management oversight (Art. 20) and incident reporting (Art. 23) need internal evidence, and Guard cannot tell whether NIS2 applies to this organisation.

GDPR is indicative only, based on publicly visible signals: Articles 7, 12, 13 and 32 of Regulation (EU) 2016/679 and Article 5(3) of the ePrivacy Directive. Not a certification or legal assessment.

Priority findings

7 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  2. Security headers

    Security headers are instructions your web server sends to every visitor’s browser. Missing ones leave visitors more exposed to attacks such as clickjacking and injected scripts.

    • High

      Missing X-Frame-Options header

      Prevents clickjacking attacks

      What to do: Add "X-Frame-Options: DENY" or "X-Frame-Options: SAMEORIGIN"

    • High

      Missing Content-Security-Policy header

      Controls resources the browser is allowed to load

      What to do: Implement a Content-Security-Policy appropriate for your application

      • ASVS V3.4.3
      • OWASP Secure Headers: OWASP Secure Headers Project recommends Content-Security-Policy: default-src 'self'; form-action 'self'; base-uri 'self'; object-src 'none';…

  3. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

Need hands-on remediation? Email guard@offseq.com

Keep watching dns-lookup.com

This scan found 26 issues across 6 checks. Monitoring re-runs those checks daily, emails you when something material changes and records each fix, so you can show progress.

Daily monitoring

Recommended

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  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

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Results by check

Each check with its score, findings and the evidence it collected.

How this score is calculated

The security score runs 0–100, higher is better. It is the plain average of the security checks that completed in this scan, each counted equally. A check that could not run is left out: it counts neither as a pass nor as a fail.

Counted in this score

SSL/TLS
75
Security headers
25
Email security
40
DNS health
70
Network security
100
GDPR outside view
53
Average
61

Not counted

  • NIS2 outside view: Re-weights evidence from the TLS, email, DNS, network and hygiene checks, so counting it would count that evidence twice. Shown on its own.
  • OffSeq Observations: An AI reading of the site, useful context but not reproducible evidence. Shown on its own.

Findings that cap the score at 49

Each of these is serious on its own, so while any is present the site cannot rate better than high risk, however good the other checks are.

  • The certificate is not trusted by browsers
  • The website is not served over HTTPS
  • A database, remote desktop, file-sharing or Telnet service is reachable from the internet
  • The page loads a script from a compromised source
  • The domain registration has expired
  • SPF authorises every server to send mail as the domain

Partial scans

When the site blocks Guard or most checks cannot run, the score covers only the checks that ran (usually DNS and email), is capped at 75 and is shown as partial, without a risk level.

Risk levels

  • Critical0–25
  • High26–49
  • Medium50–75
  • Low76–100

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The business operates in the technology sector, focusing on providing DNS lookup tools as a free service supported by advertising. Its competitive advantage lies in offering a professional, easy-to-use interface with detailed DNS record insights. The business model relies on ad revenue through BuySellAds and user traffic. The target audience includes developers and IT professionals who require DNS data for troubleshooting and configuration. The company maintains transparency by publishing source code on GitHub, which may foster trust and community engagement. Growth potential depends on expanding tool offerings and improving compliance with privacy regulations. Partnerships appear limited to advertising networks, with no evident subsidiaries or parent companies beyond CircleCell. The website's consistent branding and content quality support its market position as a reliable DNS utility provider.

Security posture

The website demonstrates a moderate security maturity level. HTTPS is enforced, and the domain status includes clientTransferProhibited, which helps prevent unauthorized domain transfers. However, the absence of DNSSEC leaves DNS queries vulnerable to certain attacks. No security headers such as Content-Security-Policy or Strict-Transport-Security were detected, which could mitigate risks like clickjacking or protocol downgrade attacks. There is no published security policy or incident response contact, limiting transparency and preparedness for security incidents. The site does not expose sensitive data or use vulnerable libraries based on the HTML content. Privacy compliance is minimal, lacking cookie consent mechanisms and GDPR indicators. Overall, the security posture is functional but could be significantly improved by adopting recommended best practices and publishing relevant policies.

Recommendations

  1. Enable DNSSEC on the domain to enhance DNS query security and integrity.
  2. Implement standard security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Add a cookie consent banner and update privacy policy to reflect GDPR compliance requirements.
  4. Publish a dedicated security policy and incident response contact information to improve transparency and trust.
  5. Regularly audit and update third-party scripts and dependencies to avoid vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CircleCell
Description
DNS Lookup is an online tool that finds the IP address and performs deep DNS lookups of any URL, providing in-depth details on common DNS record types.
Key services
DNS record lookup, IP address resolution, Information on DNS record types (A, MX, NS, SOA, TXT)
Content quality
good
Branding
consistent

Technology

Stack
HTML5, CSS, JavaScript, Google Analytics, BuySellAds advertising, Cloudflare DNS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • Domain status clientTransferProhibited
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
BuySellAds
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is a professional DNS lookup tool with clear purpose and utility.
  2. Content is technical and targeted at developers and IT users.
  3. No contact emails or phone numbers explicitly listed; contact form is present.
  4. No cookie consent banner or explicit GDPR compliance visible.
  5. Advertising is present via BuySellAds but not intrusive.
  6. No security policy or incident response information published.
  7. No security headers detected in HTML content; HTTPS is used.
  8. WHOIS data shows domain is stable and not privacy protected.
  9. No adult or questionable content detected.
Technical notes

Notes

The website uses a straightforward technology stack with HTML5, CSS, and JavaScript, integrating Google Analytics for traffic analysis and BuySellAds for monetization. Hosting and DNS are managed via Cloudflare, providing performance and security benefits. The site is mobile optimized with responsive design and includes SEO best practices such as meta tags and Open Graph data. No CMS or complex frameworks are detected, indicating a lightweight and maintainable infrastructure. Performance is moderate, with asynchronous loading of scripts and deferred JavaScript usage. Accessibility is basic but functional. Opportunities exist to improve security headers and privacy compliance to reduce technical risks and enhance user trust.
Standards and sources

Reference chips under each finding point to the standard, regulation or specification the finding relates to. They are taken from the official datasets below and mapped conservatively: a finding with no defensible link shows none. NIS2 and GDPR references mark where a finding is relevant evidence, not a compliance verdict. Implementing Regulation (EU) 2024/2690 binds digital infrastructure and digital service providers; for other entities it is the most detailed public reading of the Article 21 measures. WCAG, EN 301 549, European Accessibility Act and Web Accessibility Directive references name the requirement an automated accessibility rule relates to; they are not a conformance verdict.

Retrieved 2026-10-25

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