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Security report for sparteo.com

Sparteo · Technology · France

Medium risk. 4 critical or high findings in SSL/TLS and GDPR outside view.

Security score

74/100

Risk levelMedium

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

Sparteo is a technology company specializing in advanced advertising technology solutions tailored for publishers and ad networks. The company offers a suite of AI-powered products including display monetization, consent management, supply side platform services, and audio/video advertising technologies. Sparteo holds a strong market position supported by multiple industry awards and certifications, indicating a reputable and innovative presence in the AdTech sector. Their target audience primarily includes digital publishers and advertising networks seeking to optimize revenue and ensure regulatory compliance. Technically, Sparteo leverages modern web technologies such as Webflow CMS, Matomo analytics, and Google reCAPTCHA, ensuring a fast, mobile-optimized, and accessible website experience. The use of a dedicated consent management platform highlights their commitment to privacy compliance and user consent management. Security-wise, the website enforces HTTPS and integrates bot protection and consent management, though it could benefit from additional explicit security headers and published security policies. The absence of WHOIS data for the subdomain is noted but does not detract significantly from the overall trustworthiness given the strong branding and external validations. Overall, Sparteo demonstrates a mature digital infrastructure with a solid security posture and compliance awareness, positioning it well for continued growth in the AdTech industry.

Scanned

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

4 findings 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 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

      SSL Certificate Expires Soon

      SSL certificate expires in 28 days

      What to do: Renew SSL certificate before expiration

      • NIS2 21(2)(h)
      • IR 2024/2690 9.2(c): Implementing Regulation (EU) 2024/2690, Annex point 9.2(c): Cryptography
      • NIST SC-17: NIST SP 800-53 Rev. 5 SC-17: Public Key Infrastructure Certificates

  2. 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

    • 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

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

Keep watching sparteo.com

This scan found 20 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
62
Security headers
60
Email security
85
DNS health
85
Network security
100
GDPR outside view
53
Average
74

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

Sparteo operates in the competitive AdTech industry, focusing on providing comprehensive solutions that integrate AI-driven optimization and sustainability. Their business model is B2B SaaS, targeting publishers and ad networks to maximize programmatic advertising revenues while ensuring compliance with privacy regulations such as GDPR. The company’s ecosystem includes several subsidiary brands, each specializing in different facets of advertising technology, enhancing their market reach and service diversity. Sparteo’s partnerships and certifications with recognized industry bodies like IAB and Google further strengthen their credibility and competitive advantage. Growth indicators include recent awards and case studies demonstrating significant revenue improvements for clients. The company’s strategic focus on sustainability and responsible advertising aligns with emerging market trends, potentially opening new opportunities. Sparteo’s digital presence is professional and content-rich, supporting lead generation and customer engagement effectively.

Security posture

The security posture of Sparteo’s website is solid, with HTTPS enforced and integration of Google reCAPTCHA to mitigate automated threats. The use of FastCMP for consent management ensures compliance with privacy laws and reduces legal risks. However, the website lacks explicit security headers such as Content-Security-Policy and X-Frame-Options, which are recommended to enhance protection against common web attacks like clickjacking and cross-site scripting. No sensitive data exposure or vulnerable libraries were detected in the HTML content. The absence of a published security policy or incident response contact limits transparency and may hinder rapid response to security incidents. There is no evidence of a vulnerability disclosure program or security.txt file, which are best practices for mature security programs. Overall, Sparteo demonstrates good baseline security but could improve by formalizing and publishing security governance documents and enhancing HTTP security headers.

Recommendations

  1. Implement and publish a comprehensive security policy and incident response contact information on the website.
  2. Add explicit HTTP security headers such as Content-Security-Policy, X-Frame-Options, and Referrer-Policy to strengthen web security.
  3. Establish a vulnerability disclosure program and publish a security.txt file to encourage responsible reporting of security issues.
  4. Regularly audit and update third-party scripts and libraries to mitigate risks from vulnerabilities.
  5. Enhance accessibility features to meet or exceed WCAG standards, improving compliance and user experience.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sparteo
Description
Sparteo empowers publishers and ad networks with a comprehensive and sustainable suite of data-driven advertising technologies powered by artificial intelligence.
Key services
Advertising Technology Platform (Actirise), Consent Management Platform (FastCMP), Supply Side Platform (Meetscale), Video and Audio Advertising Technologies (Viously, Voxeus)
Content quality
excellent
Branding
consistent

Technology

Stack
Webflow CMS, Matomo Analytics, Google reCAPTCHA, FastCMP Consent Management, Swiper.js
Frameworks
Webflow
Platforms
Webflow Hosting
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of Google reCAPTCHA for bot protection
  • Consent management via FastCMP
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Matomo
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Sparteo AdTech Solutions
Tracking pixels
Matomo
Marketing tools
Matomo Analytics, Google reCAPTCHA
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 no blocking or WAF challenges.
  2. Strong focus on AdTech solutions for publishers and ad networks.
  3. Multiple subsidiary brands and partner sites integrated.
  4. Good privacy and cookie compliance with consent management.
  5. Use of modern web technologies and analytics tools.
  6. No exposed sensitive data or obvious security vulnerabilities.
  7. WHOIS data for subdomain not available, but overall trust signals are strong.
Technical notes

Notes

Sparteo’s website is built on a modern technology stack primarily using Webflow CMS, which provides a robust and scalable platform for content management and delivery. The site integrates Matomo for analytics, enabling privacy-conscious data collection, and Google reCAPTCHA for bot mitigation. The use of FastCMP indicates a sophisticated approach to consent management and privacy compliance. Hosting appears to leverage AWS Cloudfront CDN, contributing to fast load times and global availability. The website is well-optimized for mobile devices and accessibility, with clear navigation and professional design. Technical debt appears minimal, with no broken elements or outdated technologies detected. Opportunities for modernization include enhancing security headers and formalizing security governance documentation. Overall, the technical infrastructure supports Sparteo’s business goals effectively with room for incremental improvements.
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. 76/100Low28 findingsView report
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