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Security report for sinma.de

sinma GmbH · Telecommunications · Germany

Medium risk. 5 critical or high findings in GDPR outside view and Security headers.

Security score

66/100

Risk levelMedium

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

sinma GmbH is a small German telecommunications company specializing in providing full-service internet solutions tailored for business customers. Their offerings include fiber optic leased lines, DSL with fixed IPs, web hosting, server housing, virtual servers, backup solutions, VPN networks, and related services such as domain management and firewalls. The company emphasizes high availability and security in their network solutions and has been operating since 1991, indicating a long-standing presence in the market. The website reflects a professional and consistent brand image with clear navigation and relevant business content targeting German business clients. From a technical perspective, the website employs basic web technologies including JavaScript and CSS without modern frameworks or CMS detected. The site is moderately optimized for performance and accessibility but lacks advanced mobile optimization. There is no evidence of analytics or tracking scripts, which suggests minimal user tracking. However, the absence of security headers and explicit SSL/TLS information indicates room for improvement in technical security measures. Security posture evaluation reveals gaps such as missing privacy and cookie policies, lack of security headers, and limited contact information. No incident response or vulnerability disclosure information is provided, which could impact trust and compliance. The WHOIS data shows partial consistency with the website's claims but lacks detailed registrant information, limiting full legitimacy verification. Overall, the site is accessible without WAF or blocking mechanisms, and content safety is rated safe with no adult or questionable content. The overall risk assessment suggests the company maintains a moderate security and compliance posture suitable for its business scale but should prioritize implementing privacy policies, enhancing security headers, and expanding contact information to improve trust and regulatory compliance. Strategic recommendations include publishing comprehensive privacy and cookie policies with consent mechanisms, enforcing HTTPS with proper security headers, and establishing clear incident response and vulnerability disclosure channels.

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

5 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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

  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 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 sinma.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
95
Security headers
35
Email security
70
DNS health
70
Network security
100
GDPR outside view
28
Average
66

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 sinma.de, from OffSeq Breach.

No leaked records found

Breach holds no records for sinma.de right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

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

sinma GmbH operates as a niche full-service internet provider focused on business customers in Germany, leveraging its long history since 1991 to offer stable and secure network solutions. Their competitive advantage lies in tailored network services emphasizing high availability and security, including fiber optic leased lines and VPN networks. The business model centers on providing comprehensive internet and hosting services from a single source, targeting small to medium enterprises requiring reliable connectivity and IT infrastructure support. Revenue streams likely derive from service subscriptions for leased lines, DSL, hosting, and managed network services. The company’s partnership ecosystem is not explicitly detailed, and no related or subsidiary domains were identified. Growth indicators are limited due to sparse public content, but the professional website and service breadth suggest a stable market presence.

Security posture

The current security maturity level of sinma GmbH’s website is basic to moderate. Key strengths include the absence of exposed sensitive data and minimal user tracking, which reduces attack surface and privacy risks. However, significant gaps exist such as the lack of published privacy and cookie policies, no visible security headers, and no incident response or vulnerability disclosure information. These gaps indicate potential compliance issues with GDPR and other data protection regulations. The absence of HTTPS enforcement details and security best practices further lowers the security posture. No vulnerable libraries or exposed credentials were detected in the provided content. The business impact of these gaps includes reduced customer trust and potential regulatory scrutiny. Enhancing security culture by publishing clear policies and implementing technical security controls is recommended.

Recommendations

  1. Publish a comprehensive privacy policy and cookie policy with explicit consent mechanisms to ensure GDPR compliance.
  2. Implement and enforce HTTPS with modern TLS configurations and add essential security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Establish and publish incident response and vulnerability disclosure procedures, including dedicated contact channels like security@ or abuse@ email addresses.
  4. Expand contact information on the website to include phone numbers and physical addresses to improve business credibility and customer trust.
  5. Regularly audit and update website technologies and security configurations to maintain a strong security posture and compliance with evolving regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
sinma GmbH
Description
sinma GmbH is a full-service internet provider focused on business customers, offering tailored network solutions emphasizing high availability and security. Services include fiber optic leased lines, DSL with fixed IPs, web hosting, server housing, virtual servers, backup solutions, VPN networks, domain services, firewalls, and mail.
Key services
Glasfaser-Festanbindungen, ADSL, SDSL, Webhosting, Serverhousing, Virtuelle Server, Backup, VPN-Netzwerke, Domains, Firewalls
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, CSS, HTML
Performance
moderate
Mobile
basic
Accessibility
good
SEO
good

Security

Observed score
40/100

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is accessible and not blocked by WAF or security mechanisms.
  2. No privacy or cookie policy found on the site, which is a compliance gap.
  3. Terms of Service are available as a PDF document.
  4. Contact information is limited to an email in meta author tag; no phone or physical address found.
  5. No social media links or phone numbers detected.
  6. No analytics or tracking scripts detected.
  7. Website uses basic JavaScript and CSS, no modern frameworks detected.
  8. No security headers or explicit SSL/TLS information available from provided data.
  9. Content is business-focused, targeting German business customers in telecommunications.
  10. Site navigation is clear and structured with multiple service and company info pages.
Technical notes

Notes

The website is built using standard HTML, CSS, and JavaScript without modern frameworks or CMS platforms detected. The site includes multiple CSS stylesheets targeting different media types and legacy Internet Explorer versions, indicating some technical debt and older design practices. JavaScript files are custom scripts (nifty.js, layout.js) with no third-party libraries or analytics scripts found. The site structure is clear with semantic HTML elements and accessibility features such as skip links and ARIA roles. Performance is moderate with no explicit optimization techniques evident. Mobile optimization is basic, relying on handheld media stylesheets but lacking responsive design frameworks. Hosting provider details are not disclosed, and no CDN or cloud services are identified. Overall, the technical infrastructure is functional but could benefit from modernization and enhanced security configurations.
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. 66/100Medium30 findingsView report
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