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Security report for sensic.net

GfK SE · Technology · Germany

Medium risk. 8 critical or high findings in Email security, Security headers and 2 other checks.

Security score

56/100

Risk levelMedium

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

SENSIC is a service platform operated by GfK SE, providing clients with access to data measurement and tracking tools such as Stream Measurement for video and audio content and Site Tracking services. The website serves as a help center offering implementation guides, privacy policy information, and displays certifications from recognized industry bodies such as Google Ads, IAB, and AMP. The target audience primarily consists of business clients and partners requiring access to these specialized services. The platform leverages GfK's established brand and certifications to maintain market credibility. From a technical perspective, the website is built with basic HTML and CSS without advanced frameworks or CMS detected. The site performance is moderate with basic mobile optimization and accessibility features. SEO and navigation are functional but minimal. No advanced analytics or tracking scripts were identified, indicating a low level of user tracking. Security posture is moderate but could be improved. The site uses HTTPS (assumed from domain), but no security headers were detected in the provided data. There is no visible security policy or incident response information, and no cookie consent mechanism is present, which may impact GDPR compliance. The site does not expose sensitive data or vulnerable libraries, but improvements in security headers and privacy compliance are recommended. Overall, the website is functional and professional but basic in content and technical sophistication. The lack of cookie policy and terms of service pages, as well as limited security disclosures, suggest areas for improvement to enhance trust and compliance. The business credibility is strong due to the association with GfK SE and visible certifications.

Scanned

This is an earlier scan of sensic.net. View the latest report

NIS2 and GDPR posture

GDPR outside view
53/ 100 · Medium
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

8 findings rated critical or high. Fix these first.

  1. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  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';…

  3. GDPR outside view

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

    • 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

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

Keep watching sensic.net

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
52
Security headers
15
Email security
40
DNS health
75
Network security
100
GDPR outside view
53
Average
56

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 sensic.net, from OffSeq Breach.

No leaked records found

Breach holds no records for sensic.net 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

GfK SE operates SENSIC as a B2B service platform focused on data measurement and tracking solutions. The company leverages its established market position and certifications to serve clients requiring accurate media measurement tools. The business model centers on providing access to proprietary measurement services via a secure portal. The target customers are likely media companies, advertisers, and research partners. The presence of official contact details and corporate branding supports a professional image. However, the website content is minimal and primarily serves as a gateway to other GfK services, indicating a focused but narrow digital presence. No direct revenue streams or e-commerce functions are evident on this site. The partnership ecosystem includes technology providers like MaxMind and certification bodies such as IAB and Google Ads.

Security posture

The current security maturity level of the website is moderate. HTTPS is presumably enabled, but no security headers such as Content Security Policy, HSTS, or X-Frame-Options were detected, which are important for mitigating common web vulnerabilities. There is no published security policy or incident response contact information, which limits transparency and preparedness for security incidents. The absence of a cookie consent mechanism and cookie policy may expose the company to GDPR compliance risks. No vulnerable libraries or exposed sensitive data were found, indicating a basic level of security hygiene. Overall, the site would benefit from enhanced security controls, formalized policies, and improved privacy compliance to strengthen its security posture and reduce business risk.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, and X-Frame-Options to improve protection against common web attacks.
  2. Publish a cookie policy and deploy a consent mechanism to ensure GDPR compliance and enhance user trust.
  3. Add a terms of service page to clarify user rights and obligations, improving legal compliance and transparency.
  4. Develop and publish a security policy and incident response contact information to demonstrate security maturity and readiness.
  5. Enhance mobile optimization and accessibility features to improve user experience and broaden accessibility.

Contact details published on the site

Addresses
Legal name
GfK SE
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
GfK SE
Description
SENSIC is a service platform by GfK SE providing implementation guides and access to measurement tools such as Stream Measurement (Video & Audio) and Site Tracking. The site also provides privacy policy information and displays certifications and technology partners.
Key services
Stream Measurement (Video & Audio), Site Tracking
Content quality
basic
Branding
consistent

Technology

Stack
HTML5, CSS3
Performance
moderate
Mobile
basic
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • No visible exposed sensitive data
  • No vulnerable libraries detected

Analytics and tracking

Tracking level
minimal
Privacy practices
basic

Advertising

Ad networks
Google Ads
Transparency
basic

Site quality

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

Key observations

  1. Website is a corporate help center for SENSIC by GfK SE.
  2. Content is primarily in German with some English links.
  3. No cookie policy or consent mechanism found.
  4. No terms of service page detected.
  5. Contact information is clearly provided in footer.
  6. Certifications and technology partners are displayed prominently.
  7. No visible security policy or incident response information.
  8. No social media links detected.
  9. No scripts or advanced technologies detected in HTML content.
  10. External links point to trusted domains related to GfK and Microsoft Forms.
Technical notes

Notes

The website is constructed using basic HTML and CSS without detectable use of modern JavaScript frameworks or CMS platforms. The design is simple and functional but lacks advanced features or dynamic content. Performance is moderate with no explicit indicators of optimization or caching strategies. The site includes external links to trusted domains related to GfK and Microsoft Forms for access requests. No analytics or tracking scripts were identified, suggesting minimal user tracking. The absence of security headers and cookie consent mechanisms indicates technical debt in security and privacy compliance. Opportunities exist to modernize the tech stack, improve SEO, and enhance accessibility to align with current best practices.
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. 58/100Medium36 findingsView report
  2. 58/100Medium36 findingsView report
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