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Security report for tariffuxx.de

TARIFFUXX GmbH · Telecommunications · Germany

Low risk. 1 critical or high finding in SSL/TLS.

Security score

82/100

Risk levelLow

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

TARIFFUXX GmbH operates a German-language online platform specializing in independent comparisons of mobile phone tariffs and fixed-line internet offers such as DSL and cable. The company positions itself as a customer service-oriented intermediary providing updated tariff information, contract cancellation assistance, and affiliate marketing services. The website targets German consumers seeking cost-effective telecommunications solutions. Technically, the site employs modern web technologies including Bootstrap, jQuery, and multiple analytics tools such as Matomo, Microsoft Clarity, and Mouseflow, hosted behind Cloudflare DNS infrastructure. The site is mobile-optimized, fast-loading, and SEO-friendly with structured data enhancing search engine visibility. Security-wise, HTTPS is enforced and cookie consent is comprehensive, though HTTP security headers are not explicitly detected. No critical vulnerabilities or exposed sensitive data were found. Privacy compliance is strong with GDPR-aligned cookie management and privacy policies. Overall, the website demonstrates a mature digital presence with good business credibility and trust indicators.

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

1 finding rated critical or high. Fix these first.

  1. 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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching tariffuxx.de

This scan found 16 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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Recommended

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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
75
Security headers
80
Email security
85
DNS health
70
Network security
100
GDPR outside view
83
Average
82

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

TARIFFUXX GmbH holds a solid position in the German telecommunications comparison market, leveraging affiliate partnerships and customer service to generate revenue. The business model focuses on providing transparent, updated tariff comparisons for mobile and fixed-line internet services, appealing to price-conscious consumers. The company maintains active social media channels and offers contract cancellation services, enhancing customer engagement and retention. The absence of direct contact emails or phone numbers on the homepage suggests a preference for managed customer service channels. The use of Cloudflare for DNS and content delivery indicates a focus on performance and security. No parent or subsidiary relationships were identified, indicating an independent medium-sized enterprise.

Security posture

The website exhibits a good security posture with mandatory HTTPS and a detailed cookie consent mechanism that respects user privacy and GDPR requirements. The use of multiple analytics and tracking tools is balanced with transparency and user control. However, the lack of visible HTTP security headers such as Content Security Policy (CSP), HSTS, or X-Frame-Options represents an area for improvement. No incident response or security policy pages were found, which could enhance trust and preparedness. No vulnerabilities or exposed sensitive data were detected in the HTML content. Overall, the security maturity is good but could be elevated by implementing additional HTTP headers and publishing security policies.

Recommendations

  1. Implement HTTP security headers including Content Security Policy (CSP), Strict-Transport-Security (HSTS), and X-Frame-Options to enhance protection against common web attacks.
  2. Publish a dedicated security policy and incident response contact information to improve transparency and readiness for security incidents.
  3. Consider adding a security.txt file at the root domain to facilitate responsible vulnerability disclosure.
  4. Review and minimize tracking cookies where possible to reduce user tracking footprint and enhance privacy compliance.
  5. Maintain regular security audits and update third-party libraries to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
TARIFFUXX GmbH
Description
TARIFFUXX bietet unabhängigen Vergleich für Handytarife und Festnetz-Internet (Kabel, DSL) mit 100% Kundenservice.
Key services
Mobile tariff comparison, Handy with contract offers, Fixed-line internet tariff comparison, Customer service support, Contract cancellation service
Content quality
good
Branding
consistent

Technology

Stack
Bootstrap CSS, jQuery, Matomo Analytics, Microsoft Clarity, Mouseflow, Cloudflare DNS and Nameservers
Frameworks
Bootstrap
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with detailed options
  • No exposed sensitive data in HTML
  • Use of security-conscious cookie settings

Analytics and tracking

Services
Matomo, Microsoft Clarity, Mouseflow
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Facebook Pixel, Google Ads, TikTok Pixel
Tracking pixels
Facebook Pixel, Google Ads, TikTok Pixel, Matomo, Microsoft Clarity, Mouseflow
Marketing tools
Facebook Pixel, Google Ads, TikTok Pixel, Matomo, Microsoft Clarity, Mouseflow
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 no blocking or WAF challenges.
  2. Content is professionally presented in German language targeting German telecom consumers.
  3. Comprehensive cookie consent mechanism with detailed cookie categories and descriptions.
  4. Use of multiple analytics and tracking tools with clear privacy disclosures.
  5. No direct company emails or phone numbers found on the main page; contact is via service page and forms.
  6. Social media presence on TikTok, Instagram, and Facebook confirmed.
  7. No explicit security policy or incident response contact found.
  8. No visible security headers detected in provided data; recommend adding.
  9. Business information is consistent and credible with clear branding.
Technical notes

Notes

The website is built on a modern technology stack featuring Bootstrap for responsive design and jQuery for client-side scripting. It leverages Cloudflare for DNS and likely CDN services, contributing to fast load times and reliable availability. The site includes advanced analytics tools such as Matomo, Microsoft Clarity, and Mouseflow, enabling detailed user behavior analysis and optimization. SEO is supported by proper meta tags, Open Graph data, and JSON-LD structured data. The site is mobile-optimized with good accessibility features. No CMS was explicitly detected, suggesting a custom or proprietary platform. Overall, the technical infrastructure is robust with opportunities to enhance security headers and streamline tracking technologies.
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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