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Security report for dentsu.com

dentsu · Media · Finland

Low risk. 3 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

84/100

Risk levelLow

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

Dentsu Finland presents itself as a professional marketing and communications agency focused on brand growth, business transformation, and responsible development. The website content is business-oriented, targeting brands and enterprises seeking digital and strategic growth. The company appears to be part of the global dentsu group, with a consistent branding approach and use of modern web technologies including Kentico CMS and analytics tools such as Microsoft Clarity and Google Tag Manager. However, the absence of WHOIS data for the domain www.dentsu.com raises concerns about domain registration legitimacy or privacy protection. The website lacks explicit privacy, cookie, and terms of service policies, which impacts compliance and user trust. Security headers and SSL configuration details are not evident, suggesting room for improvement in security posture. Overall, the site is professional and safe but requires enhancements in transparency, security, and compliance to strengthen trust and credibility.

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

3 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 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 dentsu.com

This scan found 14 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
82
Security headers
70
Email security
80
DNS health
85
Network security
100
GDPR outside view
85
Average
84

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 dentsu.com, from OffSeq Breach.

Total records
2,006
Employees
242
Customers
1,038
Third parties
726
Weak passwords
8%

Latest record dated 2026-06-15 · 14 subdomains affected

See the 10 newest leaked credentials

A one-off add-on to this report that lists the most recent identifier and password pairs OffSeq Breach holds for dentsu.com.

Select it in the checkout above.

Masked preview

  • –myapps.dentsu.com2026-06-15
  • –myapps.dentsu.com2026-06-14
  • –myapps.dentsu.com2026-06-14
  • –myapps.dentsu.com2026-06-13
  • –myapps.dentsu.com2026-06-13

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)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

Dentsu operates in the media sector, providing essential marketing and transformation services to businesses. The company leverages a global brand presence and targets enterprise clients. The business model centers on agency services that help brands grow responsibly in a changing world. The website reflects a mature digital presence with integrated analytics and tracking, although it lacks detailed business contact information and compliance documentation. The absence of WHOIS data is unusual for a company of this scale and may indicate privacy protection or domain registration issues. No subsidiary or partner domains were identified from the content. The marketing ecosystem includes standard tracking and analytics tools but no evident affiliate or retargeting programs.

Security posture

The website uses HTTPS and includes modern analytics scripts but lacks visible security headers and explicit security policies. No vulnerabilities or exposed sensitive data were detected in the provided content. The absence of privacy and cookie policies, as well as incident response contacts, indicates gaps in compliance and security transparency. The WHOIS data absence is a significant concern for domain legitimacy. Recommendations include implementing comprehensive security headers, publishing privacy and cookie policies with consent mechanisms, and providing clear security incident contacts. Overall, the security posture is moderate but requires improvements to meet enterprise standards and regulatory compliance.

Recommendations

  1. Publish comprehensive privacy and cookie policies with GDPR compliance and consent mechanisms.
  2. Implement and verify security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  3. Provide clear contact information including security incident response and data protection officer contacts.
  4. Investigate and resolve the absence of WHOIS data to ensure domain registration legitimacy and transparency.
  5. Enhance website accessibility and SEO optimization to improve user experience and discoverability.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
dentsu
Description
Me olemme dentsu. Joukko optimisteja, visionäärejä ja edelläkävijöitä. Jatkuvasti muuttuvassa maailmassa me autamme brändejä kasvamaan, transformoitumaan ja kehittämään liiketoimintaansa vastuullisesti.
Key services
brand growth, business transformation, responsible business development
Content quality
good
Branding
consistent

Technology

Stack
Google Tag Manager, Microsoft Clarity, Multiple Select Vanilla, js-sha256, CookieLaw.org Banner SDK
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
50/100

Analytics and tracking

Services
Microsoft Clarity, Google Tag Manager
Tracking level
moderate
Privacy practices
poor

Advertising

Tracking pixels
Microsoft Clarity
Marketing tools
Microsoft Clarity
Transparency
basic

Site quality

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

Key observations

  1. Website content is accessible and professional.
  2. No WHOIS data available for domain, raising questions about domain registration status.
  3. No explicit privacy, cookie, or terms of service policies found in the analyzed content.
  4. Use of modern tracking and analytics tools without clear privacy disclosures.
  5. No explicit contact emails or phone numbers found in the provided content.
  6. Site uses Kentico CMS and includes multiple external scripts for analytics and UI.
  7. No security headers or SSL configuration details provided in the data.
  8. No evidence of security or incident response policies or contacts.
  9. Content is business-focused and safe for general audiences.
Technical notes

Notes

The website is built on Kentico CMS and uses modern JavaScript libraries and analytics tools including Microsoft Clarity and Google Tag Manager. External resources are loaded from reputable CDNs and service providers. The site includes responsive design elements and meta tags for SEO and social media sharing. Performance is moderate with room for optimization. No CMS version or hosting provider details were found. The technical stack supports a professional digital presence but lacks visible advanced security configurations. Technical debt appears low but transparency and compliance features need enhancement.
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. 79/100Low18 findingsView report
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