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Security report for siptrunk.de

SIPTRUNK.DE · Telecommunications · Germany

Medium risk. 7 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

58/100

Risk levelMedium

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

SIPTRUNK.DE operates as a German-language online comparison portal specializing in SIP trunk telephone connections for businesses. The platform offers country-specific filtering and provider listings aimed at helping companies select appropriate telephony solutions. The website is small in scale with a niche market focus within the telecommunications sector in Germany. The content is basic and primarily informational, with limited interactive elements or advanced features. Technically, the site uses legacy JavaScript libraries such as jQuery 1.11.3, Backbone.js, and Underscore.js, alongside Google Tag Manager for analytics and tracking. The site lacks modern SEO optimization and accessibility features, and mobile optimization is basic. Performance is moderate but could benefit from modernization and improved responsiveness. From a security perspective, the site does not present visible security headers or cookie consent mechanisms, which are important for GDPR compliance and overall security posture. The use of outdated JavaScript libraries introduces potential vulnerabilities. No forms or email contacts are present, limiting attack surface but also reducing user engagement options. The domain WHOIS data shows a consistent registration status without privacy protection, supporting legitimacy but lacking detailed registrant information. Overall, the website is functional but basic, with moderate trustworthiness. Security and privacy compliance improvements are recommended to enhance user trust and regulatory adherence.

Scanned

NIS2 and GDPR posture

GDPR outside view
28/ 100 · High
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

7 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • 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

  2. 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';…

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

Keep watching siptrunk.de

This scan found 27 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
77
Security headers
15
Email security
70
DNS health
60
Network security
100
GDPR outside view
28
Average
58

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

SIPTRUNK.DE positions itself as a specialized comparison portal within the telecommunications industry, targeting business customers seeking SIP trunk telephone solutions. Its business model revolves around providing comparative information and filtering options by country, likely monetized through provider partnerships or advertising. The platform's competitive advantage lies in its niche focus and localized content for German-speaking markets. However, the lack of comprehensive content, limited contact options, and minimal marketing transparency may constrain growth. The absence of social media presence and limited technical modernization suggest a small-scale operation with potential for expansion through enhanced digital marketing and platform features.

Security posture

The current security posture of SIPTRUNK.DE is basic and exhibits several gaps. The absence of security headers such as Content-Security-Policy and X-Frame-Options reduces protection against common web attacks. The use of an outdated jQuery version exposes the site to known vulnerabilities, increasing risk. No cookie consent or explicit privacy compliance mechanisms are visible, which is a compliance gap under GDPR. Incident response and security policies are not publicly documented, limiting transparency. While no critical vulnerabilities or exposed sensitive data were detected, the site would benefit from upgrading libraries, implementing security headers, and establishing clear privacy and incident response protocols to improve resilience and compliance.

Recommendations

  1. Upgrade all JavaScript libraries, especially jQuery, to current secure versions to mitigate known vulnerabilities.
  2. Implement comprehensive cookie consent mechanisms to comply with GDPR and enhance user privacy transparency.
  3. Add essential security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen security posture.
  4. Publish clear security and incident response policies to improve transparency and preparedness.
  5. Enhance website content quality, mobile responsiveness, and SEO optimization to improve user experience and market reach.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
SIPTRUNK.DE
Description
A comparison portal for telephone connections tailored for businesses, focusing on SIP trunking services.
Key services
SIP trunk comparison, Provider listings, Country-specific filtering
Content quality
basic
Branding
moderate

Technology

Stack
jQuery 1.11.3, underscore.js, backbone.js, Google Tag Manager
Frameworks
Backbone.js
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
poor

Security

Observed score
40/100
Good practices seen
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
poor

Site quality

Design
basic
User experience
basic
Content relevance
basic
Navigation
basic
Professionalism
basic
Trustworthiness
moderate

Key observations

  1. Website is a German-language SIP trunk comparison portal targeting business customers.
  2. No privacy or cookie consent banners detected despite GDPR relevance.
  3. Uses outdated JavaScript libraries which may pose security risks.
  4. No visible forms or email contacts on main page; contact via phone only.
  5. Legal pages present but privacy policy is basic and cookie policy absent.
  6. No security headers detected in provided data; SSL status unknown.
  7. Google Tag Manager used for analytics and tracking.
  8. No social media links or email addresses found in HTML content.
  9. Navigation and content are minimal and basic in quality.
Technical notes

Notes

The website employs a legacy technology stack including jQuery 1.11.3, Backbone.js, and Underscore.js, which are functional but outdated and potentially insecure. Google Tag Manager is used for analytics and tracking, indicating some level of marketing integration. The site lacks a detected CMS, suggesting a custom or static site architecture. Performance is moderate with basic mobile optimization and accessibility features. SEO is minimal, with meta tags present but no Open Graph or structured data detected. The absence of security headers and modern security practices indicates technical debt and modernization opportunities. Hosting provider details are not discernible from the data provided.
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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