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Security report for diseven.cz

D.I.SEVEN, a.s. · Other · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

51/100

Risk levelMedium

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

D.I.SEVEN, a.s. is a well-established Czech security agency operating since 1995, providing comprehensive security and cleaning services across the Czech Republic. The company employs over 2500 professionals and serves more than 600 clients, leveraging proprietary security technologies such as a centralized protection control panel (PCO), electronic gatehouse systems, and patrol tracking solutions. Their market position is strong, supported by a significant annual turnover exceeding 1 billion CZK and active social responsibility initiatives. Technically, the website employs modern analytics and tracking tools including Google Tag Manager, Google Analytics, Facebook Pixel, and Google reCAPTCHA v3, indicating a mature digital infrastructure. The site is well-designed, mobile-optimized, and offers clear navigation and rich content. Security posture is solid with HTTPS enforced and secure form handling, though improvements are recommended in security headers and incident response transparency. The absence of WHOIS data reduces domain registration trust signals but does not detract from the evident legitimacy and professionalism of the business. Overall, the website and business demonstrate a high level of credibility and operational maturity.

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

8 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

    • 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

  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 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 diseven.cz

This scan found 23 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

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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
62
Security headers
40
Email security
85
DNS health
75
Network security
20
GDPR outside view
25
Average
51

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 diseven.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for diseven.cz right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

Monitor on Breach (opens in a new tab)

Technical appendix

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

Business context

Business profile

The company operates in the security and facility management sector, targeting corporate and institutional clients in the Czech Republic. Their business model integrates physical security services, advanced security technology development, cleaning services, and facility/property management, including compliance with employment quotas for persons with disabilities through 'náhradní plnění'. The firm maintains a diversified portfolio of subsidiaries and partner sites, enhancing service breadth. Revenue streams are primarily from service contracts with over 600 clients. The company emphasizes employee training, certification, and career development, which supports service quality and client satisfaction. Their marketing and outreach include active social media presence and participation in high-profile events such as the Karlovy Vary International Film Festival. Strategic observations highlight a focus on innovation, social responsibility, and comprehensive client support, positioning D.I.SEVEN as a market leader in Czech security services.

Security posture

The website demonstrates a mature security posture with mandatory HTTPS, secure contact forms protected by Google reCAPTCHA v3, and no visible exposure of sensitive data. However, the absence of explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options suggests room for enhancement to mitigate common web vulnerabilities. No public vulnerability disclosure or security.txt file is present, which could improve transparency and incident response readiness. The company maintains insurance coverage for liability, indicating risk management awareness. GDPR compliance indicators are minimal on the website, with no explicit privacy policy page found, though cookie consent is implemented. Overall, the security maturity is good but could benefit from formalized policies and enhanced header configurations.

Recommendations

  1. Publish a comprehensive privacy policy page detailing GDPR compliance and data handling practices.
  2. Implement and configure security headers (CSP, X-Frame-Options, X-Content-Type-Options) to strengthen web security.
  3. Create and publish a security.txt file to facilitate vulnerability reporting and improve incident response transparency.
  4. Provide explicit contact information for security incidents or abuse reports to enhance trust and compliance.
  5. Enhance accessibility features to meet recognized standards and improve user experience for all visitors.

Contact details published on the site

Addresses
Legal name
D.I.SEVEN, a.s.
VAT number
CZ63077337
Registration number
63077337
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
D.I.SEVEN, a.s.
Description
Bezpečnostní agentura D.I.SEVEN poskytuje bezpečnostní služby a úklidové práce po celé České republice od roku 1995. Má více než 2500 zaměstnanců a více než 600 spokojených klientů. Společnost vyvíjí vlastní moderní bezpečnostní technologie včetně pultu centralizované ochrany (PCO), elektronické vrátnice a obchůzkového systému Active Track.
Key services
Bezpečnostní služby, Bezpečnostní technologie, Úklidové služby, Facility Management, Náhradní plnění
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery, Google Tag Manager, Google Analytics, Facebook Pixel, Google reCAPTCHA v3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA v3 on contact form
  • No exposed sensitive data in HTML
  • Secure contact form with validation

Analytics and tracking

Services
Google Analytics, Facebook Pixel, Seznam Retargeting
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Facebook Pixel, Seznam Retargeting
Marketing tools
Facebook Pixel, Seznam Retargeting
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 navigation.
  2. No WHOIS data available, possibly due to registry or privacy protection.
  3. Strong presence of social media and external references.
  4. Use of modern tracking and analytics tools.
  5. Contact information is comprehensive and clearly presented.
  6. No explicit privacy policy page found, but cookie consent is implemented.
  7. Security headers are not explicitly visible in HTML; recommend review.
  8. No visible vulnerability disclosure or security.txt file.
  9. Content is professional, business-focused, and safe for general audiences.
Technical notes

Notes

The website uses a modern technology stack including jQuery, Google Tag Manager, Google Analytics, Facebook Pixel, and Google reCAPTCHA v3, indicating a well-maintained digital infrastructure. The site is mobile-optimized and features responsive design with clear navigation menus and structured content. Performance is moderate, with some image lazy loading and asynchronous script loading to improve speed. No CMS is explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not evident from the HTML content. Technical debt appears low, but the lack of visible security headers and incomplete privacy documentation represent areas for modernization. Overall, the technical implementation supports business goals effectively with opportunities for security and compliance enhancements.
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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