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Security report for penny.cz

PENNY Market Česká republika · Retail · Czech Republic

Medium risk. 4 critical or high findings in GDPR outside view and SSL/TLS.

Security score

75/100

Risk levelMedium

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

PENNY Market Česká republika operates as a major retail supermarket chain in the Czech Republic, providing grocery and household products to a broad consumer base. The website serves as a digital storefront and information portal, featuring store locations, promotions, and company information. It is part of the REWE Group, a large European retail conglomerate, which supports its market position and brand recognition. The site targets general consumers in the Czech market with a focus on retail grocery shopping. Technically, the website employs modern frontend technologies such as Vue.js and uses Google Fonts and Material Icons for UI consistency. The site is mobile-optimized and demonstrates moderate performance with good SEO and accessibility basics. Security best practices are observed with HTTPS enforcement and standard security headers, though some advanced security disclosures and policies are absent. The security posture is solid with no detected vulnerabilities or exposed sensitive data. Privacy compliance is well addressed with comprehensive privacy and cookie policies, including consent mechanisms aligned with GDPR requirements. Contact information is clearly provided, enhancing business credibility. However, the lack of WHOIS transparency due to privacy protection limits domain registration visibility. Overall, the website presents a professional, trustworthy, and secure digital presence for PENNY Market in the Czech Republic. Strategic improvements could include publishing explicit security policies, incident response contacts, and vulnerability disclosure mechanisms to further enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

4 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

      Third-party services without privacy policy

      Detected services: Facebook, YouTube, Google APIs

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

  2. 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

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Keep watching penny.cz

This scan found 18 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.

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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
62
Security headers
90
Email security
70
DNS health
85
Network security
100
GDPR outside view
40
Average
75

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

PENNY Market is positioned as a large retail supermarket chain within the Czech Republic, operating under the umbrella of the REWE Group. Its business model focuses on retail grocery sales with an emphasis on promotions and customer convenience. The company targets everyday consumers seeking affordable and accessible supermarket services. The website supports this by providing store locators, promotional information, and customer service contacts. The absence of detailed financial or corporate structure data on the site limits deeper business intelligence, but the brand's association with REWE Group indicates strong market presence and operational scale. The company maintains active social media channels to engage customers and promote brand loyalty.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and multiple security headers implemented, including HSTS, X-Content-Type-Options, and Content-Security-Policy. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. Privacy policies and cookie consent mechanisms are in place, supporting GDPR compliance. However, the site lacks a dedicated security policy page and incident response contact information, which are important for transparency and readiness. No vulnerability disclosure or security.txt files were found, which could be improved to encourage responsible reporting of security issues. Overall, the site is secure for typical retail operations but could enhance its security culture and communication.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and publish a vulnerability disclosure policy or security.txt file.
  4. Enhance accessibility features to improve compliance and user experience for all users.
  5. Maintain transparency by providing more detailed company registration and domain ownership information if possible.

Contact details published on the site

Addresses
Legal name
PENNY Market ČR, s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
PENNY Market Česká republika
Description
PENNY Market is a retail supermarket chain operating in the Czech Republic offering groceries and household products.
Key services
Retail grocery sales, Promotions and discounts, Store locator
Content quality
good
Branding
consistent

Technology

Stack
Vue.js, Google Fonts, Material Icons, JavaScript, CSS
Frameworks
Vue.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Security headers present

Analytics and tracking

Tracking level
minimal
Privacy practices
good

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website content is fully accessible and not blocked by WAF.
  2. WHOIS data is unavailable or privacy protected, limiting domain registration transparency.
  3. Site uses modern frontend technology (Vue.js) and standard web fonts.
  4. Privacy and cookie policies are present and appear GDPR compliant.
  5. Contact information including email, phone, and address is available.
  6. No explicit security policy or incident response information found.
  7. No vulnerability disclosure or security.txt file detected.
  8. No suspicious or malicious content detected.
  9. Site is a professional retail supermarket website targeting Czech Republic consumers.
Technical notes

Notes

The website uses a modern JavaScript framework (Vue.js) for dynamic content rendering, combined with Google Fonts and Material Icons for UI consistency. The site is responsive and optimized for mobile devices, with a moderate performance profile. SEO is supported by appropriate meta tags and structured data, although no JSON-LD structured data was explicitly detected in the truncated HTML. The absence of a detected CMS suggests a custom or proprietary platform. Hosting provider details are not evident from the HTML content. The site employs standard security headers and HTTPS, indicating good technical hygiene. Opportunities exist to improve accessibility and to implement advanced SEO and performance optimizations.
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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