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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

73/100

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 cybersecurity solutions tailored for business customers. The company positions itself as a top-tier B2B service provider with a strong focus on high-speed, reliable connectivity and comprehensive security offerings. Their market presence is reinforced by multiple industry certifications and awards, reflecting a commitment to quality and customer satisfaction. Technically, the website demonstrates a mature digital infrastructure leveraging Drupal CMS, modern JavaScript modules, and integrated analytics and marketing tools such as Google Analytics, Google Tag Manager, and LinkedIn Insight. The site is well-optimized for mobile devices, accessible, and SEO-friendly, indicating a high level of digital maturity. From a security perspective, the site enforces HTTPS, employs cookie consent mechanisms compliant with GDPR, and integrates anti-bot measures in forms. While explicit security headers are not fully confirmed, the overall posture is strong with no visible vulnerabilities or exposed sensitive data. The absence of a public WHOIS record suggests privacy protection, common for enterprises, and does not detract from legitimacy. Overall, the risk profile is low with strong trust indicators, professional content, and robust compliance practices. Strategic recommendations include enhancing transparency of security headers, publishing a vulnerability disclosure policy, and maintaining ongoing compliance with evolving data protection regulations.

Scanned

This is an earlier scan of versatel.de. View the latest report

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 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.

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
67
Security headers
40
Email security
70
DNS health
75
Network security
100
GDPR outside view
83
Average
73

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

1&1 Versatel operates in the telecommunications sector, targeting medium to large business customers in Germany. Their competitive advantage lies in offering high-performance fiber optic connections combined with integrated security solutions, positioning them as a one-stop provider for digital business infrastructure. The business model focuses on B2B service contracts, including internet access, telephony, cloud services, and managed security. Revenue streams likely derive from subscription-based services and value-added offerings such as professional services and hardware partnerships. The company benefits from being a subsidiary of United Internet AG, leveraging a broad partnership ecosystem and brand recognition. Growth indicators include ongoing fiber network expansion and multiple industry awards. The company maintains a comprehensive digital presence with clear customer engagement channels and a focus on compliance and quality assurance.

Security posture

The security maturity of 1&1 Versatel's website is solid, with enforced HTTPS and GDPR-compliant cookie consent mechanisms. The presence of managed firewall and DDoS protection services advertised on the site reflects a strong internal security culture. However, explicit security headers such as X-Frame-Options and X-Content-Type-Options are not visibly confirmed in the provided data, representing a minor gap. No incident response or security contact information is publicly highlighted, which could be improved for transparency and readiness. The site uses anti-bot measures in forms to prevent spam and integrates reputable third-party analytics and marketing scripts, which should be regularly audited for vulnerabilities. Overall, the site demonstrates good security hygiene with room for enhancements in header policies and incident response visibility.

Recommendations

  1. Implement and explicitly confirm security headers like X-Frame-Options and X-Content-Type-Options to enhance protection against clickjacking and MIME sniffing.
  2. Publish a security.txt file or dedicated vulnerability disclosure policy to facilitate responsible reporting of security issues.
  3. Enhance visibility of incident response contacts or security team emails to improve transparency and readiness.
  4. Regularly audit third-party scripts and tracking tools to mitigate risks from external dependencies.
  5. Maintain and update cookie consent mechanisms to comply with evolving privacy regulations and user expectations.

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-Direktanschlüsse, Business DSL, IP-Telefonielösungen, Vernetzungslösungen (SD-WAN, VPN, Ethernet), Sicherheitslösungen (Managed Firewall, DDoS Protect), Cloud-Lösungen, Housing, Microsoft 365 Lösungen, Hosting, Hardware Kooperationen
Content quality
excellent
Branding
consistent

Technology

Stack
Drupal CMS, Google Analytics, Google Tag Manager, Google Ads, LinkedIn Insight Tag, Leadinfo tracking, JavaScript ES6 modules
Frameworks
Drupal, Google Tag Manager
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Secure forms with anti-bot measures
  • Cookie consent mechanism with categories
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, LinkedIn Insight
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads, DoubleClick
Tracking pixels
LinkedIn Insight, Leadinfo
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 compliance mechanisms implemented.
  4. Multiple awards and certifications displayed enhancing trust.
  5. Use of modern web technologies and analytics tools.
  6. Clear contact information including phone, email, physical address, and contact form.
  7. No adult or questionable content detected.
  8. WHOIS data unavailable publicly, likely due to privacy protection.
Technical notes

Notes

The website is built on Drupal CMS, utilizing modern JavaScript modules and integrating multiple analytics and marketing technologies such as Google Analytics, Google Tag Manager, LinkedIn Insight, and Leadinfo tracking. The site is mobile-optimized with responsive design and accessibility features, ensuring a good user experience across devices. Performance appears fast with efficient content delivery. The use of structured data (JSON-LD) enhances SEO and semantic understanding. No hosting provider details are explicitly found, but the presence of United Internet AG branding suggests hosting within a professional infrastructure. The technical stack is modern and well-maintained, supporting the company's digital business objectives effectively.
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. 72/100Medium27 findingsView report
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