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Security report for korunni.cz

Karlovarská Korunní, s.r.o. · Other · Czech Republic

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

53/100

Risk levelMedium

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

Karlovarská Korunní, s.r.o. is a Czech company specializing in the production and sale of flavored mineral waters enriched with vitamins and minerals. The company positions itself as a provider of healthy, functional beverages with low sugar content and no artificial additives, targeting health-conscious consumers. The website reflects a well-established brand with consistent messaging and a focus on product benefits. Technically, the site is built on modern frameworks such as Nuxt.js and Vue.js, integrating standard analytics and marketing tools like Google Analytics and Facebook Pixel. The site is mobile-optimized and performs moderately well, with good SEO and accessibility basics. Security posture is solid with HTTPS enforced and standard security headers present, though explicit security policies and incident response contacts are not published. Overall, the domain's WHOIS data is consistent with the business claims, indicating a legitimate and trustworthy entity.

Scanned

NIS2 and GDPR posture

GDPR outside view
73/ 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

6 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 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';…

  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

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

Keep watching korunni.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

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

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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
72
Security headers
15
Email security
60
DNS health
80
Network security
20
GDPR outside view
73
Average
53

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 korunni.cz, from OffSeq Breach.

No leaked records found

Breach holds no records for korunni.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 beverage manufacturing sector, focusing on functional mineral waters. It leverages a direct-to-consumer model via its website and retail distribution. The brand emphasizes health benefits and natural ingredients, appealing to a broad consumer base in the Czech Republic. The business is small-sized, founded in 1999, and maintains active social media presence on Facebook and Instagram. The website supports marketing efforts with tracking and retargeting technologies. No partnerships or subsidiaries are explicitly identified. The company provides clear contact information and complies with GDPR through cookie consent mechanisms and a privacy policy.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and multiple security headers implemented. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. The use of third-party analytics and marketing scripts is standard but should be regularly audited for security. The absence of a published security policy or incident response contact limits transparency. Cookie consent is implemented, supporting GDPR compliance. Overall, the security risk is low but could be improved by adding explicit security documentation and vulnerability disclosure mechanisms.

Recommendations

  1. Publish a dedicated security policy and incident response information to enhance transparency.
  2. Implement a vulnerability disclosure program or security.txt file to encourage responsible reporting.
  3. Enhance accessibility features to improve compliance and user experience for all users.
  4. Regularly review and update third-party scripts to mitigate potential security risks.
  5. Consider adding a terms of service page to clarify user rights and obligations.

Contact details published on the site

Addresses
Legal name
Karlovarská Korunní, s.r.o.
VAT number
CZ18226990
Registration number
18226990
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Karlovarská Korunní, s.r.o.
Description
Karlovarská Korunní produces flavored mineral waters enriched with functional benefits such as vitamins and minerals, targeting consumers seeking balanced hydration with low sugar content and no artificial additives.
Key services
Production and sale of flavored mineral waters, Consumer engagement via promotional campaigns
Content quality
good
Branding
consistent

Technology

Stack
Nuxt.js, Vue.js, Google Tag Manager, Google Analytics, Facebook Pixel, CookieScript
Frameworks
Nuxt.js, Vue.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Facebook Pixel
Marketing tools
CookieScript
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Clear cookie consent mechanism compliant with GDPR.
  3. Contact information is comprehensive and clearly presented.
  4. No terms of service page found.
  5. No explicit security or incident response policies published.
  6. Use of modern web technologies and analytics tools.
  7. No suspicious or malicious content detected.
  8. Good branding and consistent messaging throughout the site.
Technical notes

Notes

The website is built using Nuxt.js and Vue.js frameworks, indicating a modern JavaScript single-page application architecture. It uses Google Tag Manager, Google Analytics, and Facebook Pixel for marketing and analytics. The site is hosted under the REG-GRANSY registrar with multiple nameservers, suggesting a stable hosting environment. Performance is moderate with good mobile optimization and SEO practices. Accessibility is basic and could be improved. The site uses cookie consent management via CookieScript, supporting privacy compliance. No CMS detected, indicating a custom or framework-based solution.
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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