Skip to main content

Security report for billwerk.plus

billwerk plus · Technology · N/a

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

58/100

Risk levelMedium

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

Billwerk+ is a technology company specializing in subscription and payment management solutions designed to help businesses grow, innovate, and optimize their operations. With a customer base exceeding 4000 companies, Billwerk+ positions itself as a reliable SaaS provider in the subscription economy space. The website reflects a mature digital presence with multilingual support and comprehensive content tailored to business clients. Technically, the site is built on WordPress using modern plugins and themes, with integrations for analytics and cookie consent management, indicating a focus on compliance and user experience. Security posture is solid with HTTPS and cookie consent mechanisms, though there is room for improvement in security headers and explicit security policies. Overall, the domain's privacy-protected WHOIS data is typical for commercial SaaS providers and does not raise legitimacy concerns. The site is professional, trustworthy, and well-optimized for SEO and mobile use.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 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

7 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 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';…

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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: Google Analytics, Facebook, LinkedIn, YouTube

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

Need hands-on remediation? Email guard@offseq.com

Keep watching billwerk.plus

This scan found 20 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
77
Security headers
15
Email security
85
DNS health
85
Network security
20
GDPR outside view
65
Average
58

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

Billwerk+ operates in the technology sector, providing subscription and payment solutions primarily targeting businesses that require scalable SaaS platforms for recurring revenue management. Their business model is subscription-based SaaS, with a strong emphasis on compliance and customer empowerment. The company leverages partnerships and integrations, as evidenced by external domains and tracking tools, to enhance service delivery. The multilingual website and structured data usage suggest a strategy to capture international markets. The presence of professional contact information, legal company data, and a significant client base indicates a stable market position with growth potential.

Security posture

The website demonstrates a good security baseline with enforced HTTPS and cookie consent mechanisms aligned with GDPR requirements. However, the absence of explicit security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and others suggests potential areas for enhancement. No security policy or incident response information is publicly available, which could be improved to increase transparency and trust. The use of third-party scripts like Google Tag Manager and Matomo is managed with consent, reducing privacy risks. Overall, the security posture is adequate for a SaaS business website but could benefit from additional hardening and disclosure.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a dedicated security policy and incident response page to improve transparency and customer trust.
  3. Conduct regular security audits of third-party scripts and plugins to mitigate vulnerabilities.
  4. Enhance accessibility features to improve compliance and user experience for all visitors.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.

Contact details published on the site

Addresses
Legal name
billwerk GmbH
VAT number
DE 815 273 888
Registration number
HRB 182 982 B
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
billwerk plus
Description
Billwerk+ provides subscription and payment solutions to successfully grow, innovate, optimize, and transform businesses. They empower more than 4000+ companies and organizations.
Key services
Subscription management, Payment solutions, Business growth enablement
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Avada Theme, jQuery, Slider Revolution, Google Tag Manager, Matomo Analytics, Borlabs Cookie, QuadMenu
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Matomo, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Matomo
Marketing tools
Borlabs Cookie
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. Content is business-focused, targeting subscription and payment management customers.
  3. Strong use of structured data and SEO best practices.
  4. Privacy and cookie policies are present with consent mechanisms.
  5. WHOIS data is privacy protected, limiting registrant visibility.
  6. No explicit security policy or incident response pages found.
  7. No vulnerability disclosure or security.txt detected.
  8. Multiple languages supported via WPML plugin.
  9. Use of modern WordPress plugins and themes indicates active maintenance.
Technical notes

Notes

The website is built on a WordPress CMS platform using the Avada theme and several modern plugins such as Slider Revolution, Borlabs Cookie for consent management, and QuadMenu for navigation. Analytics are handled via Matomo and Google Tag Manager, indicating a balanced approach to data collection and privacy. The site is optimized for mobile devices and SEO, with structured data (JSON-LD) implemented for enhanced search engine understanding. Performance is moderate, with some room for optimization in loading speed and accessibility. The technical stack is current and well-maintained, supporting a professional online presence for the business.
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 billwerk.plus. 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 billwerk.plus.

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.