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Security report for checkdomain.de

checkdomain · Technology · Germany

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

70/100

Risk levelMedium

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

Checkdomain.de is a well-established German domain registrar and web hosting provider offering a comprehensive suite of services including domain registration, web hosting, website building tools, SEO and marketing services, and SSL certificates. The website targets individuals and businesses seeking to establish an online presence with a strong focus on ease of use and customer support. Technically, the site employs modern JavaScript frameworks (likely Vue.js), integrates Google Tag Manager for analytics, and uses consent management tools to comply with privacy regulations. The site is well-optimized for performance, mobile responsiveness, and accessibility. Security posture is strong with HTTPS enforced and no visible vulnerabilities, though explicit security headers should be verified. The WHOIS data is limited due to DENIC privacy policies but shows consistent domain status and branded nameservers, supporting legitimacy. Overall, the site demonstrates high professionalism, trustworthiness, and compliance with GDPR and cookie regulations.

Scanned

This is an earlier scan of checkdomain.de. View the latest report

NIS2 and GDPR posture

GDPR outside view
68/ 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

4 findings rated critical or high. Fix these first.

  1. 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 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';…
  2. GDPR outside view

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

    • 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

  3. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching checkdomain.de

This scan found 24 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.

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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
52
Security headers
65
Email security
70
DNS health
65
Network security
100
GDPR outside view
68
Average
70

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention checkdomain.de, from OffSeq Breach.

Total records
6,482
Employees
0
Customers
6,482
Third parties
0
Weak passwords
6%

92 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for checkdomain.de.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

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

Business context

Business profile

Checkdomain operates in the technology sector focusing on domain registration and web hosting services primarily in Germany. It maintains a medium-sized business profile with a strong market position supported by positive customer reviews on Trustpilot and a broad product portfolio. The business model includes direct sales of domains, hosting packages, website creation services, and marketing tools. The company leverages partnerships with related domain providers and marketing platforms. Growth indicators include active promotions and integration of AI-powered domain generation tools. The company emphasizes customer service and technical reliability as competitive advantages.

Security posture

The website exhibits a mature security posture with HTTPS enforced and use of consent management for privacy compliance. No exposed sensitive data or vulnerable libraries were detected in the HTML content. Security headers are partially inferred but should be explicitly confirmed. There is no public incident response or security policy page found, nor a vulnerability disclosure program, which could be areas for improvement. The absence of security.txt or similar files limits transparency for security researchers. Overall, the site is secure for typical user interactions but could enhance its security communication and incident readiness.

Recommendations

  1. Verify and explicitly implement security headers such as X-Frame-Options and X-Content-Type-Options to enhance protection against clickjacking and MIME sniffing.
  2. Publish a dedicated security policy and incident response page to improve transparency and preparedness.
  3. Implement a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  4. Regularly audit third-party scripts and libraries to ensure no vulnerabilities are introduced.
  5. Enhance user trust by providing more detailed business information and certifications on the website.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
checkdomain
Description
Weltweiter Domain-Check mit über 750 Domainendungen, Webhosting, Wordpress, Baukasten und kostenlose SSL-Zertifikate.
Key services
Domain registration, Webhosting, Website builder, SEO and marketing services, SSL certificates
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Vue.js (implied by v-app and component structure), Google Tag Manager, Consentmanager.net, SVG icons
Frameworks
Vue.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of consent management for cookies
  • Secure forms with no visible vulnerabilities

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Consentmanager.net
Marketing tools
rankingCoach
Transparency
good

Site quality

Design
excellent
User experience
excellent
Content relevance
excellent
Navigation
excellent
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with rich content and interactive features
  2. Strong focus on domain registration and web hosting services
  3. Use of modern web technologies and consent management
  4. Good customer trust signals including Trustpilot integration
  5. No visible security or privacy policy gaps
  6. WHOIS data limited by DENIC privacy but consistent with business
Technical notes

Notes

The website uses a modern JavaScript framework (likely Vue.js) with a component-based architecture. It integrates Google Tag Manager for analytics and Consentmanager.net for cookie consent management, indicating compliance with privacy laws. The site is optimized for mobile devices and accessibility, with responsive design and semantic HTML elements. Performance appears fast with efficient resource loading and SVG icons. No CMS is explicitly detected, suggesting a custom or headless approach. Hosting provider details are not disclosed. The technical stack supports scalability and user engagement but should maintain vigilance on third-party dependencies and security headers.
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

Earlier scans of this domain

  1. 70/100 −1Medium32 findingsView report
  2. 71/100Medium25 findingsView report
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