Skip to main content

Security report for rethmann-gruppe.de

RETHMANN SE & Co. KG · Transportation · Germany

Medium risk. 5 critical or high findings in GDPR outside view and Security headers.

Security score

66/100

Risk levelMedium

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

RETHMANN SE & Co. KG is a well-established German family-owned holding company founded in 1934, operating primarily in the transportation and energy sectors through its subsidiaries REMONDIS, Rhenus, SARIA, and a significant stake in Transdev. The company provides comprehensive services in recycling, logistics, sustainable product manufacturing, and public mobility solutions, targeting industrial clients, municipalities, and private customers. The website is built on TYPO3 CMS, featuring good content quality, clear navigation, and professional design, though it lacks a valid SSL certificate, which is a critical security concern. Privacy policies are comprehensive and GDPR compliant, but no cookie consent mechanism is present. The company demonstrates strong business credibility with detailed contact information and legal disclosures.

Scanned

NIS2 and GDPR posture

GDPR outside view
18/ 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

5 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 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

  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 rethmann-gruppe.de

This scan found 21 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.

Billed monthly to your card. Cancel anytime. See sample alerts.

Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
90
Security headers
35
Email security
70
DNS health
85
Network security
100
GDPR outside view
18
Average
66

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

RETHMANN holds a strong market position as a leading European player in recycling and logistics, leveraging diversified subsidiaries to cover a broad range of environmental and mobility services. Its business model focuses on sustainable growth within a family-owned structure, emphasizing resource conservation and innovative mobility concepts. The company maintains a robust partnership ecosystem, including a 34% stake in Transdev, enhancing its footprint in public transport. Growth indicators include recent press releases about governance changes and infrastructure investments. The company targets B2B and public sector clients, with a focus on environmental responsibility and technological innovation.

Security posture

The website's security posture is currently weak due to the absence of a valid SSL certificate and disabled TLS protocols, exposing users to potential data interception risks. However, the presence of strong email authentication mechanisms (SPF, DMARC) and HSTS indicates some security awareness. The lack of OCSP stapling and session resumption reduces performance and security robustness. No incident response or vulnerability disclosure information is publicly available, which could hinder timely handling of security events. Data protection practices are well documented, with a named data protection officer and clear GDPR compliance, but the missing HTTPS is a critical gap that must be addressed immediately.

Recommendations

  1. Obtain and deploy a valid SSL/TLS certificate to enable HTTPS across the entire website.
  2. Enable modern TLS protocols (TLS 1.2 and TLS 1.3) and disable deprecated versions to enhance security.
  3. Implement OCSP stapling and session resumption to improve SSL performance and security.
  4. Add a cookie consent mechanism to comply with EU cookie laws and enhance user privacy transparency.
  5. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible security reporting.

Contact details published on the site

Addresses
Legal name
RETHMANN SE & Co. KG
VAT number
DE 196 899 706
Registration number
Amtsgericht Dortmund HR A 15431
Technical notes

Notes

The website uses TYPO3 CMS with compressed CSS and JavaScript assets, indicating a modern approach to asset management. Performance is moderate with a page load time of approximately 4 seconds and 51 resources loaded. Mobile optimization is good, with viewport meta tags and responsive design elements. SEO is supported by canonical and hreflang tags for multilingual support. Accessibility is basic but could be improved. Hosting details are limited, with no DNSSEC or CAA records, and the IP address suggests a standard hosting provider. The lack of SSL/TLS is a major technical risk. The site uses JavaScript for slideshows and navigation but no major third-party analytics or marketing tools were detected.
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

Reviews of this site

Share your experience with rethmann-gruppe.de. Every review is verified by email and published after moderation.

Overall rating
Select a rating
4000 characters remaining

We’ll email you to confirm your review and keep your details private.

Community rating

No published reviews yet. Be the first to review rethmann-gruppe.de.

Feedback on this report

Rate this report, add an optional comment, and tell us if you want a security specialist to follow up.

Overall report quality
Select a rating
2000 characters remaining

We only use your feedback to improve Guard reports. Contact details are never shared.