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Security report for dereza.cz

DEREZA, s.r.o. · Manufacturing · Czech Republic

High risk. 10 critical or high findings in GDPR outside view, Network security and 2 other checks.

Security score

47/100

Risk levelHigh

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

DEREZA, s.r.o. is a Czech construction company established in 2000, specializing in comprehensive building services including technical building equipment, earthworks, and transport. The company has a solid market position supported by references to significant projects such as Rudolfinum and Prague Castle. Their website is built on WordPress using the Avada theme, integrating modern technologies like Google Analytics and reCAPTCHA for security and analytics. While the site is professionally designed and mobile-optimized, it lacks explicit privacy and security policies. Security posture is moderate with HTTPS and reCAPTCHA implemented but missing security headers and incident response information. Overall, the website is trustworthy and functional with room for improvement in privacy compliance and security best practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 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

10 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 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Google APIs

      What to do: Document all third-party data sharing in your privacy policy

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

Keep watching dereza.cz

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.

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
20
Email security
85
DNS health
85
Network security
20
GDPR outside view
10
Average
47

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 company operates in the manufacturing and real estate sectors, targeting clients needing construction and technical building services in the Czech Republic. Their business model is service-oriented with a focus on full-scale construction projects. The website content and references indicate a medium-sized firm with a consistent brand presence and a clear contact strategy. The use of Google Tag Manager and Analytics suggests an interest in marketing and user behavior insights. No partnerships or subsidiaries are explicitly identified beyond the web development partner.

Security posture

The website enforces HTTPS and uses Google reCAPTCHA to protect forms, which are positive security measures. However, the absence of security headers such as Content-Security-Policy and lack of published security policies or incident response contacts indicate gaps in security maturity. No vulnerabilities or exposed sensitive data were detected in the provided content. The cookie consent mechanism is implemented, supporting GDPR compliance to some extent. Overall, the security posture is moderate but could be enhanced by adopting additional best practices and transparency.

Recommendations

  1. Implement and configure security headers like Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to harden the website against common attacks.
  2. Publish a clear privacy policy and terms of service pages to improve legal compliance and user trust.
  3. Add a security.txt file and incident response contact information to facilitate vulnerability reporting and improve security transparency.
  4. Enhance cookie consent details with explicit data retention policies and third-party data sharing disclosures.
  5. Regularly audit and update plugins and themes to mitigate risks from vulnerable components.

Contact details published on the site

Addresses
Legal name
DEREZA, s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DEREZA, s.r.o.
Description
DEREZA, s.r.o. is a construction company offering a full range of construction services including building services, technical building equipment, earthworks, and transport. The company has experience with significant projects such as Rudolfinum, Prague Castle, and various hotels and public buildings. They provide comprehensive construction including equipment and technologies.
Key services
Stavební služby (Construction services), Technické zařízení budov (Technical building equipment), Zemní práce (Earthworks), Autodoprava (Transport services)
Content quality
good
Branding
consistent

Technology

Stack
WordPress 5.8.12, jQuery 3.6.0, Google reCAPTCHA, Google Tag Manager, Slider Revolution 6.5.7, Contact Form 7, 4w-consent-with-cache plugin
Frameworks
Avada Theme
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA integration on forms
  • Cookie consent banner with granular settings

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

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 construction company site in Czech language
  2. Uses WordPress CMS with Avada theme and common plugins
  3. Includes cookie consent with granular user control
  4. No explicit privacy policy or terms of service found
  5. Contact information is clearly presented with emails, phones, and address
  6. No visible security headers or incident response info
  7. Google Analytics and Tag Manager used for tracking
  8. No WAF or blocking detected, site fully accessible
Technical notes

Notes

The website uses a modern WordPress CMS with the Avada theme and several popular plugins including Contact Form 7 and Slider Revolution. It integrates Google services for analytics and tag management, and Google reCAPTCHA for bot protection. The site is mobile-optimized and has a good design quality. Performance is moderate, likely influenced by the use of multiple scripts and external resources. Accessibility is basic but could be improved. No hosting provider details were found in the data. Overall, the technical infrastructure is solid but could benefit from performance tuning and enhanced security configurations.
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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