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Security report for varta.energy

VARTA AG · Energy · Germany

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

Security score

71/100

Risk levelMedium

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

VARTA.energy is a digital portal operated by VARTA AG, a well-known energy storage solutions provider. The portal offers customers and certified partners access to monitor energy storage data, manage settings, and register warranties. The website is professionally designed, mobile-optimized, and provides comprehensive product information and user guidance. Technically, the site uses TYPO3 CMS, integrates Google Tag Manager and Analytics, and employs a modern cookie consent manager (Klaro) ensuring GDPR compliance. Security posture is good with HTTPS enforced and no visible vulnerabilities, though security headers could be improved. WHOIS data is unavailable due to malformed responses or privacy protection, which slightly impacts domain trust but the website content and branding strongly indicate legitimacy. Overall, the site is safe, professional, and well-suited for its target audience in the energy sector.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

4 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. GDPR outside view

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

    • 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

  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 varta.energy

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.

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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
80
Network security
100
GDPR outside view
68
Average
71

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

VARTA.energy targets private customers, commercial clients, and certified partners with a B2C and B2B portal for energy storage management. The company leverages its established brand in the energy storage market to provide digital services enhancing customer experience and warranty management. The portal supports multiple product lines and integrates with a mobile app for convenience. The business model focuses on product ecosystem support and customer retention through digital engagement. The website links to the parent company domain (varta-ag.com), reinforcing brand consistency. No direct contact information is provided on the portal homepage, suggesting a focus on registered users. The company appears large and established in Germany with a strong market position in energy storage solutions.

Security posture

The website enforces HTTPS and uses a reputable cookie consent manager, indicating good privacy and security awareness. Google Tag Manager and Analytics are implemented with consent mechanisms. No security headers were detected in the HTML content, which is an area for improvement. No exposed sensitive data or vulnerable libraries were found. The absence of contact emails for security or abuse reporting is a minor gap. Overall, the security posture is solid but could be enhanced by adding security headers and explicit incident response contacts. The site is free from WAF blocks or security challenges, allowing full content access and analysis.

Recommendations

  1. Implement HTTP security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options to enhance protection.
  2. Publish explicit security and incident response policies including abuse and security contact emails.
  3. Enhance accessibility features to improve compliance and user experience for all users.
  4. Regularly audit third-party scripts and update CMS components to mitigate vulnerabilities.
  5. Consider publishing terms of service and more detailed business information to improve transparency.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
VARTA AG
Description
VARTA.energy provides an online portal for managing energy storage systems, including data monitoring, settings management, and warranty registration. The portal targets private customers, commercial customers, and certified partners.
Key services
Energy storage data monitoring, Settings management, Warranty registration, App integration (VARTA.home)
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Klaro Cookie Consent, Google Tag Manager, Google Analytics, TYPO3 CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent management
  • No exposed sensitive data in HTML

Analytics and tracking

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

Advertising

Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content about energy storage products and portal services.
  2. No security challenge or blocking detected.
  3. WHOIS data is unavailable, limiting domain trust verification.
  4. Cookie consent and privacy policy are well implemented and GDPR compliant.
  5. No contact emails or phone numbers explicitly found on the main page.
  6. Website uses modern cookie consent management and analytics tools.
  7. Content is professional, relevant, and safe for general audiences.
Technical notes

Notes

The website is built on TYPO3 CMS with a modern front-end using JavaScript and CSS. It integrates Klaro for cookie consent management and Google Tag Manager for analytics and marketing tags. The site is mobile-optimized with responsive images and layouts. Performance appears moderate with no obvious blocking scripts or errors. SEO is supported by proper meta tags and Open Graph data. No advanced frameworks or platforms beyond TYPO3 and standard web technologies were detected. Hosting provider details are not disclosed. The site could benefit from enhanced accessibility and security header implementation to reduce technical risks.
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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