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Security report for rosendahl-berlin.de

Rosendahl Borngräber · Media · Germany

Medium risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

70/100

Risk levelMedium

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

Rosendahl Borngräber is a Berlin-based agency specializing in brand and communication design, serving a diverse clientele including companies, institutions, and non-profit organizations. Established in 1998, the agency offers a broad range of services such as branding, corporate design, digital and publication design, signage, and website development. Their market position is reinforced by multiple prestigious design awards, reflecting a strong reputation in the media and design industry. Technically, the website is built on the CELLMS content management system and employs a modern technology stack including jQuery, Lottie animations, and device detection scripts. The site is hosted on flatservice.de nameservers, optimized for mobile devices, and demonstrates good SEO and accessibility practices, though some improvements in accessibility and security headers could be made. From a security perspective, the site uses HTTPS with a good SSL configuration and implements a cookie consent mechanism compliant with GDPR. However, explicit security policies and incident response information are not published, and security headers are not detected, indicating areas for enhancement. No vulnerabilities or exposed sensitive data were found. Overall, the website presents a professional, trustworthy, and well-maintained digital presence with a strong focus on privacy compliance and user experience. Strategic improvements in security policy transparency and technical security controls would further strengthen the site's security posture and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
83/ 100 · Low
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

3 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 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. 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 rosendahl-berlin.de

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.

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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
72
Security headers
35
Email security
70
DNS health
60
Network security
100
GDPR outside view
83
Average
70

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

Rosendahl Borngräber operates as a specialized design and branding agency with a clear focus on strategic brand development and communication design. Their competitive advantage lies in their long-standing experience since 1998, award-winning portfolio, and comprehensive service offerings that cover both traditional and digital media. The agency targets a professional audience including public institutions, cultural organizations, and NGOs, positioning itself as a trusted partner for authentic brand experiences. Revenue streams likely derive from project-based contracts in branding, publication, digital design, and signage. The company maintains a lean structure (small size) with no subsidiaries or parent company indicated. Their partnership ecosystem includes social media platforms and trusted third-party services like Google Analytics and Vimeo for marketing and analytics. Strategically, the agency benefits from consistent branding and a professional online presence that supports client acquisition and retention. Growth opportunities may include expanding digital services and enhancing security and compliance transparency to meet evolving client expectations.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enforced and a GDPR-compliant cookie consent mechanism. The absence of explicit security policies, incident response contacts, and vulnerability disclosure mechanisms suggests limited transparency in security governance. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. The use of third-party libraries such as jQuery 2.0.3 and jQuery Migrate 1.2.1, which are older versions, may pose potential risks if not regularly updated. Security headers like Content-Security-Policy and X-Frame-Options are not observed, representing an area for improvement to mitigate common web attacks. Incident response readiness is not publicly documented, and no security.txt file is present, which could hinder coordinated vulnerability reporting. Overall, the security posture is adequate for a design agency but could be enhanced by adopting best practices in security headers, library updates, and incident response transparency.

Recommendations

  1. Implement comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web vulnerabilities.
  2. Publish explicit security and incident response policies on the website, including dedicated contact channels for security issues.
  3. Introduce a security.txt file to facilitate responsible vulnerability disclosure and improve security transparency.
  4. Upgrade third-party libraries such as jQuery to the latest stable versions to reduce exposure to known vulnerabilities.
  5. Enhance accessibility features to meet recognized standards and improve user experience for all visitors.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Rosendahl Borngräber
Description
Rosendahl Borngräber is an agency for brand and communication design based in Berlin. They develop strategies, designs, and campaigns that are effective and inspiring. The agency specializes in visual communication, brand strategies, and authentic brand experiences for companies, institutions, and non-profit organizations. They combine design quality with clear thinking for impactful brands.
Key services
Branding, Corporate Design, Communication Design, Publication Design, Digital Design, Signage, Websites, Illustrations
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 2.0.3, jQuery Migrate 1.2.1, jQuery Cookie, jQuery StorageAPI, Lottie animations, MobileEsp device detection
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enabled
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of secure cookies for session and device recognition

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
YouTube embedded videos, Vimeo embedded videos, Google Maps
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Comprehensive cookie consent and privacy policy implemented.
  3. No terms of service page found.
  4. Contact information is clearly presented with phone and email.
  5. Multiple award badges enhance trustworthiness.
  6. Use of modern web technologies and CMS CELLMS.
  7. Good mobile optimization and responsive design.
  8. Security headers not explicitly detected; opportunity for improvement.
  9. No explicit security or incident response policies published.
  10. No vulnerability disclosure or security.txt found.
Technical notes

Notes

The website is built on the CELLMS content management system and utilizes a technology stack including jQuery 2.0.3, jQuery Migrate, jQuery Cookie, jQuery StorageAPI, and Lottie animations for interactive content. Device detection is handled via MobileEsp scripts to serve device-specific CSS, improving mobile responsiveness. Hosting is managed through flatservice.de nameservers, indicating a professional hosting environment. Performance is moderate with room for optimization, especially in script loading and caching strategies. SEO is supported by proper meta tags and Open Graph data, enhancing social media sharing and search engine visibility. Technical debt is minimal but updating legacy libraries and improving security headers would modernize the infrastructure and reduce risk. The site is mobile-optimized with responsive design elements, though accessibility could be improved for compliance and inclusivity.
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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