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Security report for peterkoelln.de

Peter Kölln GmbH & Co. KGaA · Retail · Germany

Medium risk. 2 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

Peter Kölln GmbH & Co. KGaA operates a professional e-commerce website specializing in oat-based food products such as flakes, granola, muesli, and porridge. The company is positioned as a reputable German brand with a strong market presence in the retail food sector. The website provides comprehensive product information, recipes, and B2B services, targeting general consumers interested in healthy oat products. Technically, the site is built on the Shopify platform, leveraging modern JavaScript frameworks like Alpine.js and Finsweet attributes, and integrates Microsoft Clarity for analytics. The infrastructure is robust, hosted on Shopify's CDN, ensuring fast performance and excellent mobile optimization. Security posture is strong with HTTPS enforced, multiple security headers present, and no exposed sensitive data. Privacy compliance is well addressed with GDPR-compliant cookie consent and clear privacy policies. However, the site lacks a dedicated security policy and incident response information, which could enhance trust further. Overall, the website is professional, secure, and trustworthy, with minor areas for improvement in security transparency.

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

2 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.

    • 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. 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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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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
75
Security headers
75
Email security
60
DNS health
65
Network security
100
GDPR outside view
73
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

The company maintains a focused business model centered on manufacturing and retailing oat and cereal products, supported by an e-commerce platform. Its market positioning as a traditional yet modern brand is reinforced by consistent branding and high-quality content. The presence of B2B pages indicates diversified revenue streams beyond direct consumer sales. The website's structured data and SEO efforts suggest a strategic approach to digital marketing. The absence of affiliate programs or extensive advertising networks points to a controlled marketing ecosystem. The company appears to prioritize brand integrity and customer trust, leveraging direct sales and informational content to engage its audience.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, comprehensive security headers, and secure integration of payment and analytics services. The use of cookie consent mechanisms aligns with GDPR requirements, indicating awareness of privacy regulations. No vulnerabilities or exposed sensitive data were detected in the HTML content. However, the lack of a published security policy or vulnerability disclosure program limits transparency and may reduce confidence among security-conscious users. Incident response contact channels are not publicly available, which could delay response to security incidents. Overall, the site is secure but could benefit from enhanced security communication and formalized disclosure practices.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and commitments.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide clear incident response contact information such as security@ or abuse@ email addresses.
  4. Regularly review and audit third-party scripts and integrations for security vulnerabilities.
  5. Enhance accessibility features to improve compliance and user experience for all users.

Contact details published on the site

Addresses
Legal name
Peter Kölln GmbH & Co. KGaA
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Peter Kölln GmbH & Co. KGaA
Description
Hafer ist mehr als nur ein Getreide – er ist unser Antrieb, unsere Leidenschaft und das Herzstück von Kölln.
Key services
Retail of oat flakes, granola, muesli, porridge, cereals, Providing recipes and nutritional information, B2B services
Content quality
excellent
Branding
consistent

Technology

Stack
Shopify, Alpine.js, Finsweet Attributes, Microsoft Clarity, Shopify Payment Buttons, Shopify Analytics
Frameworks
Shopify Liquid, Alpine.js
Platforms
Shopify
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • No exposed sensitive data in HTML
  • Use of secure payment integrations

Analytics and tracking

Services
Shopify Analytics, Microsoft Clarity
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Microsoft Clarity, Shopify Analytics
Marketing tools
Shopify Payment Buttons, Shopify Analytics
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and fully accessible.
  2. Uses Shopify platform with modern JavaScript frameworks.
  3. Includes GDPR-compliant cookie consent mechanism.
  4. Provides clear contact information including email, phone, and address.
  5. No security policy or incident response info publicly available.
  6. No vulnerability disclosure or security.txt found.
  7. No suspicious or malicious content detected.
  8. Strong branding and consistent content quality.
  9. Extensive use of structured data for SEO and business info.
Technical notes

Notes

The website is built on the Shopify platform, utilizing modern JavaScript frameworks including Alpine.js and Finsweet attributes for UI enhancements. It integrates Microsoft Clarity for user behavior analytics and Shopify's own analytics and payment button services. The site is hosted on Shopify's CDN, ensuring fast load times and global availability. The HTML and CSS are valid and well-structured, with responsive design optimized for mobile devices. SEO is supported by comprehensive meta tags, Open Graph data, and JSON-LD structured data describing the business. No technical debt or deprecated technologies were observed. The site employs standard security headers and enforces HTTPS, contributing to a secure and performant user experience.
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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