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Security report for numberly.com

Numberly · Technology · France

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

Security score

70/100

Risk levelMedium

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

Numberly is a well-established marketing technology company founded in 2005 and operating primarily in France. The company specializes in data-driven marketing solutions including people-based marketing, programmatic advertising, CRM, and big data analytics. Their website reflects a mature digital presence with a professional design and clear business focus on B2B clients seeking to optimize marketing investments. Technically, the site uses modern frameworks such as Vue.js and is hosted with reputable providers, ensuring good performance and mobile optimization. Security posture is solid with HTTPS enforced and domain protections in place, though some security headers and explicit policies could be improved. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms. Overall, Numberly presents a credible and trustworthy business with a strong market position in marketing technology.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

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 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';…

  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

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

Keep watching numberly.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
  • Email delivery with an unlock code
  • 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
67
Security headers
15
Email security
85
DNS health
85
Network security
100
GDPR outside view
68
Average
70

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

Numberly operates in the technology and media sectors, targeting businesses that require advanced marketing technology solutions. Their business model is B2B, focusing on transforming marketing expenses into long-term investments through data and technology. The company is a subsidiary of 1000mercis, indicating a broader corporate structure. Their market positioning is that of an established player with a comprehensive service offering including CRM, DMP, and programmatic advertising. The website content and structure support a professional image aimed at medium to large enterprises. The presence of LinkedIn Insight and other marketing tools suggests active engagement in digital marketing and analytics. No direct revenue streams or financial data are disclosed, but the company’s longevity and parent company relationship indicate stability.

Security posture

The website enforces HTTPS and has domain status flags that prevent unauthorized transfers or deletions, which are positive security indicators. However, DNSSEC is not enabled, which is a recommended enhancement for DNS security. The site lacks explicit security policies or incident response contacts, which could be a gap in transparency and readiness. No exposed sensitive data or vulnerable libraries were detected in the analysis. The presence of tracking scripts like LinkedIn Insight is standard for marketing sites but should be managed carefully for privacy compliance. Overall, the security posture is good but could be improved by adding security headers, publishing a security policy, and enabling DNSSEC.

Recommendations

  1. Enable DNSSEC to enhance DNS security and prevent spoofing.
  2. Implement and verify security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a clear security policy and incident response contact information on the website.
  4. Consider adding a vulnerability disclosure or security.txt file to facilitate responsible reporting.
  5. Regularly audit third-party scripts and tracking tools to ensure privacy compliance and minimize risk.

Contact details published on the site

Addresses
Legal name
Numberly
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Numberly
Description
Numberly is a Marketing Technologist helping its clients to transform their marketing expenses into long-term investments in order to boost performance.
Key services
People-based marketing, Incremental marketing, Programmatic advertising, Digital marketing, Big data analytics, CRM, DMP
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Vue.js, AWS DNS, Web fonts (WOFF, WOFF2), Material Icons
Frameworks
Vue.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • ClientDeleteProhibited and ClientTransferProhibited domain status

Analytics and tracking

Services
LinkedIn Insight
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
LinkedIn Insight Tag
Marketing tools
Programmatic advertising, CRM, DMP
Transparency
basic

Site quality

Design
excellent
User experience
good
Content relevance
excellent
Navigation
good
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. Content is professional and targeted at B2B marketing technology clients.
  3. Strong domain age and consistent WHOIS data support legitimacy.
  4. Privacy and cookie policies are present with consent mechanisms.
  5. No explicit security policy or incident response information found.
  6. Use of modern JavaScript framework (Vue.js) and AWS DNS hosting.
  7. No exposed sensitive data or obvious vulnerabilities detected.
  8. LinkedIn Insight tracking script present indicating marketing analytics.
  9. No suspicious or malicious external domains detected.
Technical notes

Notes

The website is built using Vue.js, a modern JavaScript framework, and uses AWS DNS services for hosting DNS. The site loads multiple web fonts and uses Material Icons for UI elements. The design is responsive and optimized for mobile devices. Performance is moderate with preloading of scripts and fonts to improve load times. SEO is supported by proper meta tags and Open Graph tags for social sharing. Accessibility features are basic but present. The CMS or backend platform is not explicitly identified, suggesting a custom or proprietary solution. Overall, the technical infrastructure is modern and well-implemented with room for security enhancements.
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. 70/100Medium30 findingsView report
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