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Security report for sonntag-wp.de

SONNTAG Wirtschaftsprüfung · Finance · Germany

Medium risk. 4 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

70/100

Risk levelMedium

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

SONNTAG Wirtschaftsprüfung is a medium-sized professional services firm based in Germany specializing in auditing, tax consulting, legal advice, and related financial services. The company emphasizes a risk-oriented auditing approach aligned with international standards and offers comprehensive consulting services including business valuation, restructuring, and IFRS transition support. Affiliated with the international MOORE network, SONNTAG positions itself as a reliable partner for both local and cross-border clients. The website reflects a professional and consistent brand image with clear service descriptions and contact information. Technically, the site is built on WordPress with modern plugins and demonstrates good mobile optimization and SEO practices. Security posture is solid with HTTPS enforced and cookie consent implemented, though some security headers could be improved. Overall, the site is trustworthy and well-maintained, supporting the company's credible market position.

Scanned

NIS2 and GDPR posture

GDPR outside view
48/ 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 Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

  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 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';…

  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 sonntag-wp.de

This scan found 22 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
67
Security headers
65
Email security
75
DNS health
65
Network security
100
GDPR outside view
48
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

The company operates in the finance sector, targeting corporate clients requiring auditing, tax, and consulting services. Its business model revolves around professional services with revenue streams from statutory and voluntary audits, consulting projects, and valuation services. The affiliation with MOORE enhances its competitive advantage by providing international reach. The website's clear navigation and detailed service offerings indicate a mature digital presence. The company maintains multiple office locations in Germany, supporting regional client engagement. Social media channels and a dedicated career site suggest active engagement with stakeholders and talent acquisition efforts.

Security posture

The website employs HTTPS and a cookie consent mechanism, indicating compliance with basic security and privacy standards. Use of the Borlabs Cookie plugin suggests attention to GDPR compliance. No exposed sensitive data or vulnerable libraries were detected in the provided content. However, the absence of explicit security headers such as Content Security Policy or HSTS is a minor gap. No incident response or security policy pages were found, which could be improved to enhance transparency and readiness. Overall, the security posture is good for a professional services website but could benefit from additional hardening and documentation.

Recommendations

  1. Implement and enforce security headers like CSP, HSTS, X-Frame-Options to strengthen site security.
  2. Publish a dedicated security policy and incident response information to improve transparency and trust.
  3. Consider adding a vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  4. Regularly audit and update third-party plugins and themes to mitigate potential vulnerabilities.
  5. Enhance accessibility features to comply with standards and improve user experience for all visitors.

Contact details published on the site

Addresses
Legal name
S & P GmbH Wirtschaftsprüfungsgesellschaft
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SONNTAG Wirtschaftsprüfung
Description
Wirtschaftsprüfer - Steuerberater - Rechtsanwälte. Im Bereich der Wirtschaftsprüfung verfolgen wir den risikoorientierten Prüfungsansatz entsprechend internationaler Vorgaben. Wir übernehmen gesetzlich vorgeschriebene und freiwillige Abschlussprüfungen einschließlich der Prüfung von Konzernabschlüssen nach den Vorschriften des HGB und der internationalen Rechnungslegung (IAS/IFRS, US-GAAP) sowie Sonderprüfungen und Ordnungsmäßigkeitsprüfungen. Im Rahmen der wirtschaftsprüfungsnahen Unternehmensberatung gehören unter anderem zu unserem Aufgabenspektrum die Unternehmensbewertung einschließlich der Erstellung von Bewertungsgutachten gemäß IDW S1, die Erstellung integrierter Unternehmensplanungen, die Sanierungs- und Restrukturierungsberatung einschließlich der Erstellung von Sanierungsgutachten gemäß IDW S6 sowie die Beratung öffentlicher Unternehmen und die Durchführung von komplexen Projekten zur Umstellung der handelsrechtlichen auf internationale Rechnungslegung (IFRS).
Key services
Wirtschaftsprüfung (auditing), Steuerberatung (tax consulting), Rechtsberatung (legal advice), Unternehmensbewertung (business valuation), Sanierung und Restrukturierung (restructuring consulting), IT-Systemprüfung (IT system auditing), Financial Services, IFRS consulting
Content quality
good
Branding
consistent

Technology

Stack
WordPress 6.8.3, jQuery, MediaElement.js, Borlabs Cookie plugin, Kallyas theme, Font Awesome icons
Frameworks
WordPress
Platforms
PHP-based CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data detected
  • Use of security plugins (Borlabs Cookie)

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
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 is professionally designed and content-rich.
  2. Clear business focus on auditing, tax, and consulting services.
  3. Strong presence of legal and privacy documentation.
  4. Use of modern web technologies and cookie consent mechanisms.
  5. No signs of malicious or suspicious activity.
  6. Social media presence on Facebook, LinkedIn, Instagram.
  7. International network affiliation enhances credibility.
Technical notes

Notes

The website is built on WordPress 6.8.3 using the Kallyas theme and child theme with custom fonts and styling. It uses jQuery and MediaElement.js for video playback, although the video player shows a media error indicating possible misconfiguration or unsupported formats. The Borlabs Cookie plugin manages cookie consent, reflecting GDPR compliance efforts. The site is responsive with CSS media queries for various screen sizes, ensuring good mobile usability. SEO is supported by meta tags, canonical links, and structured JSON-LD data. Performance appears moderate; optimization opportunities include fixing video playback issues and improving caching strategies. No hosting provider details were detected from the content. Overall, the technical infrastructure is modern and suitable for the business needs.
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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