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Security report for zendesk.nl

Zendesk · Technology · Netherlands

Medium risk. 4 critical or high findings in Security headers, Email security and 1 other check.

Security score

73/100

Risk levelMedium

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

Zendesk is a leading enterprise SaaS provider specializing in AI-driven customer service solutions. The company offers a comprehensive suite of products including AI agents, ticketing systems, messaging, voice, and workforce management, targeting businesses of all sizes globally. The website is professionally designed, multilingual, and optimized for performance and accessibility, reflecting a mature digital infrastructure. Security posture is strong with HTTPS enforcement, security headers, and cookie consent mechanisms, though some additional headers could enhance protection. The domain registration is consistent with the company's history and operations, supporting legitimacy. Overall, Zendesk presents a trustworthy and professional online presence aligned with its market position.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 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

4 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"

  2. 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.

    • High

      No SPF record found

      SPF helps prevent email spoofing

      What to do: Add SPF record: "v=spf1 include:_spf.yourmailprovider.com ~all"

  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 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 zendesk.nl

This scan found 19 issues across 5 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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Recommended

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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
75
Security headers
40
Email security
50
DNS health
70
Network security
100
GDPR outside view
100
Average
73

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

Zendesk operates in the technology sector, focusing on customer service software with AI integration. Its business model is SaaS, serving enterprises, SMBs, and startups across various industries including retail, finance, healthcare, and government. The company leverages partnerships and a global presence with localized sites. Revenue streams likely include subscription fees for software tiers and professional services. The website content and structure emphasize innovation, customer trust, and comprehensive service offerings, positioning Zendesk as a market leader with strong brand consistency.

Security posture

The website demonstrates a high level of security maturity with HTTPS, X-Frame-Options, HSTS, and X-XSS-Protection headers. No critical vulnerabilities or exposed sensitive data were detected. The presence of cookie consent and privacy policies indicates compliance with GDPR. However, the absence of some modern headers like CSP and Referrer-Policy suggests room for improvement. Incident response and vulnerability disclosure information are not explicitly found, which could be enhanced to improve transparency and readiness. Overall, the security posture is robust but could benefit from additional best practices.

Recommendations

  1. Implement Content Security Policy (CSP) to mitigate XSS risks.
  2. Add Referrer-Policy and Permissions-Policy headers for enhanced privacy and security.
  3. Publish explicit vulnerability disclosure and incident response policies.
  4. Regularly audit third-party scripts and dependencies for vulnerabilities.
  5. Enhance visibility of security certifications and compliance attestations on the website.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Zendesk
Description
Ontdek onze AI-gedreven bekroonde klantenservicesoftware, vertrouwd door 200.000 klanten. Zorg voor tevreden klanten via sms, mobiele apparaten, telefoon, e-mail, live chat en social media.
Key services
AI agents, Copilot, Ticketing system, Messaging and live chat, Helpcenter, Voice, Quality assurance, Workforce management
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Marketo, OneTrust, Adobe Web SDK, Segment Analytics
Frameworks
Next.js
Platforms
Cloudfront CDN
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Security headers present
  • Cookie consent mechanism
  • No exposed sensitive data detected

Analytics and tracking

Services
Segment Analytics, Google Analytics (via GTM), Marketo
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Ads
Tracking pixels
Marketo, OneTrust
Marketing tools
Marketo, OneTrust
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. Content is comprehensive and professionally presented in Dutch.
  3. Strong focus on AI-driven customer service solutions.
  4. Multiple language versions and regional sites available.
  5. Good security headers and HTTPS enforced.
  6. Use of modern web technologies and marketing/analytics tools.
  7. Clear privacy and cookie policies with consent mechanisms.
  8. No exposed sensitive data or obvious vulnerabilities detected.
Technical notes

Notes

Zendesk's website uses a modern tech stack including React and Next.js, hosted on Amazon Cloudfront CDN for performance and scalability. The site is well-optimized for mobile and accessibility, with comprehensive SEO metadata and structured navigation. Integration with marketing and analytics tools like Marketo, Google Tag Manager, and Segment Analytics supports data-driven decision making. The technical infrastructure is robust, supporting a fast and reliable user experience. Opportunities exist to further modernize security headers and streamline third-party script management to reduce potential risks.
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. 73/100Medium26 findingsView report
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