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Security report for doplnuj.cz

Other · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

63/100

Risk levelMedium

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

The website doplnuj.cz is currently a domain sale landing page, indicating that the domain is available for purchase. It provides a simple interface with a prominent message in Czech language and an email contact for offers. The site also lists numerous other domains available for sale, each with a brief descriptive note. The business model is focused on domain reselling or brokerage, targeting potential buyers or investors interested in acquiring domain names. The domain is newly registered in 2024 and hosted by a Czech hosting provider, consistent with the website's content and purpose. From a technical perspective, the website is built with basic HTML and CSS, featuring a responsive design suitable for mobile devices. There is no evidence of advanced frameworks, CMS, or analytics tools. Performance is likely moderate given the minimal content and simple structure. However, there is a lack of security headers and no visible HTTPS/SSL confirmation, which could pose risks or reduce trustworthiness. Security posture is minimal with no privacy or cookie policies, no incident response contacts, and no vulnerability disclosure mechanisms. The site does not collect user data via forms or tracking scripts, reducing exposure but also limiting business credibility. The WHOIS data is consistent and legitimate for a domain sale page, with no suspicious patterns detected. Overall, the site is low risk but also low trust and professionalism. Strategic recommendations include implementing HTTPS, adding privacy and cookie policies, enhancing security headers, and providing clearer business and security contact information to improve trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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

9 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

  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 Strict-Transport-Security header

      Forces HTTPS connections

      What to do: Add "Strict-Transport-Security: max-age=31536000; includeSubDomains; preload"

      • CWE-319
      • OWASP A04:2025
      • ASVS V3.4.1
    • 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';…

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

Keep watching doplnuj.cz

This scan found 19 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

€25per month

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

Email alerts on material changes and an exportable JSON history of every change.

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Full report

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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
85
Security headers
15
Email security
65
DNS health
85
Network security
100
GDPR outside view
25
Average
63

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 domain doplnuj.cz is positioned as a domain sales asset within a portfolio of domains offered by the same entity. The business operates as a domain reseller or broker, targeting buyers interested in acquiring short, descriptive, or niche Czech domains. The revenue model is likely based on domain sales or auctions. The target customers are businesses or individuals seeking domain names for technology, lifestyle, sports, education, or other sectors as indicated by the diverse domain list. The company appears small and newly established, with no visible parent or subsidiary relationships. The lack of detailed business information or certifications limits competitive advantage and market trust. The domain portfolio approach suggests a strategy of holding and selling valuable domain names rather than operating active business websites.

Security posture

The security maturity of the website is low. There is no evidence of HTTPS enforcement or SSL certificate usage, which is a critical security gap. No security headers such as Content-Security-Policy or X-Frame-Options are present, increasing risk of common web attacks. The absence of privacy and cookie policies indicates non-compliance with GDPR and related regulations. No incident response or abuse contact information is provided, limiting the ability to handle security incidents effectively. The site does not collect user data via forms, reducing attack surface but also limiting user engagement. Overall, the site lacks basic security best practices and should prioritize implementing HTTPS, security headers, and compliance documentation.

Recommendations

  1. Implement HTTPS with a valid SSL certificate to secure user connections and improve trust.
  2. Add comprehensive privacy and cookie policies to comply with GDPR and inform users.
  3. Configure standard security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Provide clear contact information for security incidents or abuse reporting to enhance incident response readiness.
  5. Consider adding a vulnerability disclosure policy or security.txt file to encourage responsible reporting and improve security culture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Description
The website is a placeholder page indicating that the domain doplnuj.cz is for sale. It also lists many other domains available for sale with brief descriptions.
Key services
Domain sales
Content quality
basic
Branding
moderate

Technology

Stack
HTML5, CSS3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
30/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

Design
basic
User experience
basic
Content relevance
basic
Navigation
basic
Professionalism
basic
Trustworthiness
low

Key observations

  1. Website is a simple domain sale landing page with minimal content.
  2. No privacy, cookie, or terms of service policies present.
  3. Only contact method is an email address for offers.
  4. No forms or interactive elements present.
  5. No security headers or advanced security measures detected.
  6. No analytics or tracking scripts detected.
  7. Mobile responsive design is implemented via CSS.
  8. No social media or phone contact information found.
  9. WHOIS data is consistent and domain is newly registered.
  10. No adult or explicit content present.
Technical notes

Notes

The website is a simple static HTML and CSS page hosted by REG-WEDOS, a Czech hosting provider. It uses no detectable CMS or JavaScript frameworks. The design is minimal but mobile responsive. There are no analytics or tracking scripts, which limits data-driven insights but enhances privacy. The site performance is likely moderate due to minimal content. However, the lack of HTTPS and security headers represents technical debt and security risk. There is an opportunity to modernize the site by adding HTTPS, improving SEO metadata, and implementing accessibility features. The current technical setup is sufficient for a placeholder domain sale page but inadequate for a professional business presence.
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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