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Security report for seedtag.com

Seedtag · Technology · Spain

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

71/100

Risk levelMedium

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

Seedtag is a global leader in neuro-contextual advertising, leveraging advanced machine learning and AI technologies to deliver innovative advertising solutions to global brands and publishers. The company positions itself as a privacy-first, technology-driven advertising platform with a strong focus on delivering impactful and contextually relevant ad experiences. Their website reflects a mature digital infrastructure, utilizing modern frameworks such as React and WordPress, and integrates Google Tag Manager for analytics and marketing purposes. The site is well-optimized for mobile and SEO, with comprehensive privacy and cookie policies that align with GDPR requirements. Security posture is strong with HTTPS enforcement and security headers, although explicit security policies and incident response details are not publicly disclosed. The absence of WHOIS data reduces transparency but does not detract significantly from the overall trustworthiness given the professional presentation and certifications. Strategic recommendations include publishing detailed security policies, adding vulnerability disclosure mechanisms, and enhancing direct contact options for security and business inquiries.

Scanned

NIS2 and GDPR posture

GDPR outside view
85/ 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

5 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. GDPR outside view

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

    • 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

  3. 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
    • 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 seedtag.com

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

Email alerts on material changes and an exportable JSON history of every change.

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Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
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  • Lifetime access to this report

Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
57
Security headers
30
Email security
75
DNS health
80
Network security
100
GDPR outside view
85
Average
71

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

Seedtag operates in the advertising technology sector, focusing on contextual and neuro-contextual advertising solutions that combine neuroscience and AI to optimize ad targeting and engagement. Their business model centers on providing premium advertising placements across a network of over 11,000 trusted publishers, serving global brands across various industries. The company demonstrates strong market positioning with partnerships involving major brands such as NBA, JetBlue, Gillette, and Unilever. Their offerings include an in-house design studio and a specialized content strategy service called Seedtag LAB. The company targets advertisers and publishers seeking privacy-compliant, high-impact advertising solutions. Growth indicators include recent acquisitions and a robust content marketing strategy with case studies, research, and a dedicated press room. The partnership ecosystem and certifications further reinforce their credibility and industry standing.

Security posture

Seedtag exhibits a solid security posture with HTTPS enforced site-wide and implementation of key security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security. No exposed sensitive data or vulnerable libraries were detected in the site content. However, the absence of a published security policy, incident response plan, or vulnerability disclosure program limits transparency and preparedness visibility. No direct security contact emails were found, which could hinder timely incident reporting. The site complies with GDPR and provides cookie consent mechanisms, indicating attention to privacy and data protection. Overall, the security maturity is good but could be enhanced by formalizing and publishing security governance documents and contact channels.

Recommendations

  1. Publish a dedicated security policy and incident response plan on the website.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide direct security contact information such as security@ or abuse@ email addresses.
  4. Regularly audit and update third-party scripts and libraries to mitigate vulnerabilities.
  5. Enhance transparency on data retention policies and user data handling practices.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Seedtag
Description
Seedtag offers a suite of Neuro-Contextual Advertising solutions based in Machine Learning and Artificial Intelligences to global brands.
Key services
Neuro-contextual advertising, Machine learning powered ad targeting, In-house design studio, Seedtag LAB content strategy service
Content quality
excellent
Branding
consistent

Technology

Stack
React, WordPress, Google Tag Manager, Swiper.js, Frontity
Frameworks
React, WordPress
Platforms
Web
Performance
moderate
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with no visible vulnerabilities

Analytics and tracking

Services
Google Analytics (implied via Site Kit by Google)
Tracking level
moderate
Privacy practices
good

Advertising

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 presence of social media and partner logos indicating established business relationships.
  3. Use of modern web technologies and frameworks.
  4. Comprehensive privacy and cookie policies with consent mechanisms.
  5. No direct company emails or phone numbers found on the main site; contact primarily via forms.
  6. WHOIS data unavailable, limiting domain registration transparency.
Technical notes

Notes

The website is built on a modern technology stack combining React for frontend interactivity and WordPress as the CMS backend. It uses Google Tag Manager for analytics and marketing tag management, and Swiper.js for interactive sliders. The site is mobile-optimized with responsive design and good accessibility features. Performance is moderate, with some room for optimization in loading times. SEO is well addressed with proper meta tags, Open Graph data, and structured JSON-LD schema for organization and website. The hosting provider is not explicitly identified from the data. Overall, the technical infrastructure supports a professional and scalable digital presence with opportunities to improve performance and security transparency.
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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