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Security report for contera.cz

CONTERA · Real Estate · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

65/100

Risk levelMedium

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

CONTERA is a Czech-based real estate development and investment group specializing in commercial property development across the Czech and Slovak markets. Their portfolio includes industrial parks, retail spaces, office buildings, multifunctional units, and residential projects. The company positions itself as a strong regional player with a focus on sustainable and high-quality developments, supported by certifications such as BREEAM. The website reflects a professional and modern digital presence with clear business information and contact channels. Technically, the website is built on the Webflow platform, utilizing modern JavaScript libraries such as Swiper.js and jQuery, and integrates Google Tag Manager for analytics and marketing. The site is well-optimized for performance, mobile responsiveness, and accessibility, with a comprehensive cookie consent mechanism ensuring GDPR compliance. From a security perspective, the site enforces HTTPS and employs cookie consent best practices. However, it lacks explicit security headers and does not provide a dedicated security policy or incident response contact, which are areas for improvement. The absence of WHOIS data reduces transparency but does not significantly detract from the site's legitimacy given the professional content and business presence. Overall, CONTERA's website demonstrates a mature digital infrastructure and a solid security posture with room for enhancements in security policy transparency and WHOIS data availability. Strategic recommendations include implementing security headers, publishing security policies, and establishing incident response contacts to further strengthen 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

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 Policy found

      GDPR requires clear information about cookie usage

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

  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';…

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

Keep watching contera.cz

This scan found 20 issues across 5 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
47
Security headers
30
Email security
100
DNS health
85
Network security
100
GDPR outside view
25
Average
65

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 contera.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for contera.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

CONTERA operates in the real estate sector focusing on commercial development and investment in the Czech Republic and Slovakia. Their competitive advantage lies in a diversified portfolio spanning industrial parks, retail, office, multifunctional, and residential properties. The business model revolves around property development, leasing, and asset management. Target customers include regional and multinational companies seeking industrial and commercial spaces, as well as residential clients. Growth indicators include expanding portfolio size and ongoing projects. The company maintains partnerships with entities like Organica Ostrava and Citysite, enhancing its market reach. Strategic observations highlight a commitment to sustainability and regional development, positioning CONTERA as a reputable and growing player in the Central European real estate market.

Security posture

The website exhibits a good security maturity level with enforced HTTPS and a robust cookie consent mechanism aligned with GDPR requirements. No exposed sensitive data or vulnerable libraries were detected. However, the absence of security headers such as Content-Security-Policy and X-Frame-Options indicates potential areas of risk. There is no visible incident response or vulnerability disclosure policy, which could hinder timely handling of security incidents. Data protection practices are supported by a comprehensive privacy policy. Overall, the security culture appears professional but could benefit from enhanced transparency and formalized security documentation to meet higher compliance standards such as ISO 27001 or NIST frameworks.

Recommendations

  1. Implement HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance protection against common web attacks.
  2. Publish a dedicated security policy page outlining security practices, compliance, and incident response procedures.
  3. Establish and publicize an incident response contact channel (e.g., security@ or abuse@ email) to facilitate vulnerability reporting and incident management.
  4. Regularly audit and update third-party scripts and libraries to mitigate risks from outdated or vulnerable components.
  5. Enhance WHOIS transparency by ensuring domain registration details are publicly available or justified if privacy protection is used.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CONTERA
Description
Česká developerská a investiční skupina zaměřená na komerční development v Česku a Slovensku, provozující průmyslové parky, kanceláře, retail a rezidenční projekty.
Key services
Průmyslové parky, Retailové prostory, Kancelářské budovy, Multifunkční jednotky, Rezidenční projekty
Content quality
excellent
Branding
consistent

Technology

Stack
Webflow CMS, jQuery 3.5.1, Swiper.js, Google Tag Manager, Finsweet Cookie Consent
Frameworks
Webflow
Platforms
Webflow Hosting
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in mechanism
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google AdWords
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 professional design.
  2. No WHOIS data available, which is unusual but not necessarily suspicious.
  3. Strong cookie consent and privacy policy presence indicating GDPR compliance.
  4. Use of modern web technologies and analytics tools.
  5. No visible security headers detected; opportunity for improvement.
  6. Clear contact information with multiple channels and social media presence.
  7. BREEAM certification indicates commitment to sustainability.
Technical notes

Notes

The website is built using Webflow CMS, leveraging modern JavaScript libraries such as jQuery and Swiper.js for interactive elements. Google Tag Manager is used for analytics and marketing integrations. The site is hosted on Webflow's CDN, ensuring fast load times and global availability. The design is responsive and optimized for mobile devices, with good accessibility features. SEO is supported by appropriate meta tags and Open Graph data. There is no evidence of technical debt or legacy technologies. Opportunities exist to improve security headers and formalize security documentation. Overall, the technical infrastructure supports a professional and performant user experience aligned with current web standards.
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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