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Security report for versatel.de

1&1 Versatel GmbH · Telecommunications · Germany

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

Security score

72/100

Risk levelMedium

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

1&1 Versatel GmbH is a leading German telecommunications provider specializing in fiber optic internet, telephony, networking, and security solutions for business customers. The company operates under the umbrella of United Internet AG and targets medium to large enterprises seeking high-performance digital infrastructure. Their website reflects a mature digital presence with comprehensive service offerings and strong branding consistency. Technically, the site is built on Drupal CMS with modern frontend technologies, optimized for mobile and accessibility. Security posture is solid with HTTPS and cookie consent mechanisms, though some improvements in security headers and vulnerability disclosure are recommended. Overall, the domain's WHOIS data is unavailable, which slightly impacts trust but does not detract from the company's legitimacy given the strong business signals and market position.

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 versatel.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.

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

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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
62
Security headers
40
Email security
70
DNS health
75
Network security
100
GDPR outside view
83
Average
72

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 versatel.de, from OffSeq Breach.

Total records
1,638
Employees
25
Customers
1,575
Third parties
38
Weak passwords
45%

Latest record dated 2026-05-28 · 36 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 versatel.de.

Select it in the checkout above.

Masked preview

  • –service.versatel.de2026-05-28
  • –webmail.versatel.de2026-05-11
  • –www.versatel.de2026-03-20
  • –service.versatel.de2026-03-20
  • –service.versatel.de2026-03-04

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

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

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 holds a strong market position as a fiber optic specialist in Germany's B2B telecommunications sector. Their business model focuses on providing tailored connectivity and security solutions, including SD-WAN, VPN, managed firewalls, and cloud services. The website showcases multiple industry awards and certifications, reinforcing credibility. The presence of detailed product and service menus, customer references, and dedicated business contact channels indicates a well-structured sales and support ecosystem. Partnerships with United Internet AG and related domains like 1und1.de suggest a broad operational footprint. Growth indicators include recent awards and a comprehensive service portfolio targeting various industry verticals.

Security posture

The website enforces HTTPS and implements a cookie consent mechanism compliant with GDPR. Forms include spam protection via a custom security question. However, no explicit security headers (e.g., CSP, HSTS) were detected in the provided data, and no vulnerability disclosure or security.txt file is published. Incident response contacts or dedicated security policy pages are absent. These gaps suggest room for improvement in transparency and defense-in-depth. No vulnerabilities or exposed sensitive data were observed. Overall, the security posture is good but could be enhanced by adopting additional best practices and publishing clear security policies.

Recommendations

  1. Implement and enforce security headers such as Content-Security-Policy, Strict-Transport-Security, and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a vulnerability disclosure policy or security.txt file to facilitate responsible reporting and improve transparency.
  3. Provide explicit contact information for data protection officers and incident response teams to comply with GDPR and NIS2 requirements.
  4. Regularly audit third-party scripts and tracking technologies to minimize security risks and ensure privacy compliance.
  5. Enhance WHOIS domain registration transparency or clarify domain usage to improve trust and reduce suspicion.

Contact details published on the site

Addresses
Legal name
1&1 Versatel GmbH
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
1&1 Versatel GmbH
Description
1&1 Versatel ist der Glasfaser-Spezialist und einer der führenden Anbieter von Daten-, Internet- und Sprachdiensten für Firmenkunden in Deutschland.
Key services
Glasfaser Internet, Business DSL, IP-Telefonie, Vernetzungslösungen (SD-WAN, VPN, Ethernet), Sicherheitslösungen (Managed Firewall, DDoS Protect), Cloud-Lösungen, Hosting, Microsoft 365 Lösungen, Professional Services
Content quality
excellent
Branding
consistent

Technology

Stack
Drupal CMS, JavaScript, Google Tag Manager, Swiper.js slider, CSS3, HTML5
Frameworks
Drupal
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • Spam protection on contact form (captcha-like security question)

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Google, LinkedIn
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected.
  2. Strong focus on B2B telecommunications services with fiber optic internet and security solutions.
  3. Comprehensive cookie consent and privacy mechanisms implemented.
  4. Multiple awards and certifications displayed enhancing trust.
  5. Contact form includes spam protection via a custom security question.
  6. Social media presence on LinkedIn, YouTube, Xing.
  7. No explicit security.txt or vulnerability disclosure found.
  8. WHOIS data unavailable for domain www.1und1.net, possibly due to domain aliasing or privacy.
  9. Website uses Drupal CMS with modern frontend technologies.
  10. Good mobile optimization and accessibility features.
Technical notes

Notes

The website is powered by Drupal CMS, leveraging modern JavaScript libraries such as Swiper.js for sliders and Google Tag Manager for analytics and marketing. The site is well-structured with valid HTML and CSS, optimized for mobile devices and accessibility. Performance appears fast with responsive images and deferred script loading. SEO is supported by comprehensive meta tags, Open Graph data, and structured JSON-LD organization schema. The technical stack is mature and suitable for a large enterprise telecommunications provider. Opportunities exist to improve security headers and implement a formal vulnerability disclosure process.
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

Earlier scans of this domain

  1. 73/100Medium26 findingsView report
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