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Security report for swb.de

swb · Energy · Germany

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

75/100

Risk levelMedium

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

swb is a regional energy and telecommunications provider based in Bremen, Germany, offering a broad range of utility services including electricity, natural gas, water, heating, IT, and telecom solutions. The company positions itself as a key regional player serving private customers with a comprehensive portfolio. The website reflects a mature digital presence with professional design, clear navigation, and GDPR-compliant cookie consent mechanisms. Technically, the site employs modern tools such as Google Tag Manager and Cookiebot for analytics and consent management, hosted on a regional German provider's infrastructure. Security posture is adequate with HTTPS enforced and CSRF protections indicated, though additional security headers and explicit incident response policies are absent. Overall, the site demonstrates good privacy compliance and business credibility, though opportunities exist to enhance transparency and security documentation.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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

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 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. 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 swb.de

This scan found 19 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
82
Security headers
20
Email security
85
DNS health
70
Network security
100
GDPR outside view
95
Average
75

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

Breach exposure

Leaked credentials and lookalike domains from OffSeq Breach. The counts are free; the detailed lists are paid add-ons.

Dark web exposure

Add-on

Leaked records that mention swb.de, from OffSeq Breach.

Total records
1,170
Employees
0
Customers
1,170
Third parties
0
Weak passwords
6%

8 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for swb.de.

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Breach keeps ingesting new leaks, so these numbers can grow between scans.

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

swb operates in the essential energy and telecommunications sectors, targeting private customers primarily in Bremen and surrounding areas. The business model focuses on regional utility supply and related services, leveraging partnerships such as with EWE. The website's content and cookie disclosures indicate a strong adherence to GDPR requirements, reflecting a customer-centric approach. The use of multiple analytics and marketing platforms suggests active engagement in digital marketing and customer insights. The absence of explicit contact emails or phone numbers in the HTML suggests reliance on contact forms for customer interaction. The company appears well-established with consistent branding and a professional online presence.

Security posture

The website enforces HTTPS and uses secure cookies including CSRF tokens, indicating awareness of common web security practices. Cookie consent is granular and compliant with GDPR, including disclosures about data transfers to the USA and associated risks. However, the lack of visible security headers such as Content-Security-Policy or X-Frame-Options reduces defense-in-depth. No explicit security policy or incident response contacts are published, which could hinder rapid response to security events. The presence of multiple third-party scripts necessitates ongoing monitoring for vulnerabilities. Overall, the security posture is solid but could be improved with enhanced transparency and technical controls.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and controls.
  2. Add security headers like Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Provide explicit incident response contact information such as security@ or abuse@ email addresses.
  4. Regularly audit and update third-party scripts to mitigate vulnerabilities.
  5. Enhance accessibility features and provide a terms of service page for legal completeness.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
swb
Description
swb – Ihr regionaler Ver- und Entsorger aus Bremen mit Produkten und Dienstleistungen rund um Strom, Erdgas, Wasser, Wärme, IT und Telekommunikation.
Key services
Electricity supply, Natural gas supply, Water supply, Heating services, IT services, Telecommunications
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Cookiebot, HTML5, CSS3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in/out
  • CSRF token usage (indicated by __RequestVerificationToken cookie)

Analytics and tracking

Services
Google Analytics, Microsoft Analytics
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Google, IntelliAd, LinkedIn, TikTok
Tracking pixels
Microsoft tracking pixels, Cookiebot tracking
Marketing tools
Cookiebot
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Comprehensive cookie consent mechanism implemented with detailed cookie categories.
  3. Use of multiple third-party analytics and marketing services with clear consent.
  4. No explicit contact emails or phone numbers found in the provided HTML snippet; contact likely via form.
  5. No visible security headers in provided data; recommend adding for enhanced security.
  6. No terms of service page detected.
  7. No explicit security or incident response policies published.
  8. WHOIS data limited but consistent with hosting provider and domain usage.
Technical notes

Notes

The website uses a modern tech stack including Google Tag Manager and Cookiebot for analytics and consent management. Hosting is provided by Ewetel, a regional German provider, which aligns with the company's regional focus. The site is mobile optimized and uses responsive design principles. Performance is moderate, with potential for improvement through optimization of third-party scripts and assets. SEO is supported by proper meta tags and canonical URLs. Accessibility is basic but could be enhanced. No CMS was explicitly detected, suggesting a custom or proprietary platform. Overall, the technical infrastructure supports the business needs but has room for modernization and security hardening.
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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