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Security report for zendesk.com.br

Zendesk · Technology · Brazil

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

Security score

69/100

Risk levelMedium

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

Zendesk is a leading enterprise software company specializing in AI-powered customer service solutions. The website targets businesses of all sizes, offering a comprehensive suite of services including AI agents, ticketing systems, messaging, voice, and quality assurance. The company maintains a strong market position with a professional and well-branded online presence, supporting multiple languages and international markets. Technically, the site leverages modern frameworks such as Next.js and React, integrates marketing and analytics tools like Marketo and Google Tag Manager, and is hosted with Cloudflare DNS services, ensuring fast performance and mobile optimization. Security posture is robust with HTTPS enforcement, security headers, and cookie consent mechanisms, although explicit incident response and vulnerability disclosure information are not publicly available. Overall, the site demonstrates a mature digital infrastructure and strong business credibility, with minor recommendations to enhance transparency in security policies.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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.com.br

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.

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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
40
DNS health
65
Network security
100
GDPR outside view
95
Average
69

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 SaaS customer service solutions enhanced by AI. Its business model revolves around subscription-based software offerings targeting enterprises and SMBs. The company’s competitive advantage lies in its AI integration and comprehensive product suite. The website reflects a global footprint with localized content for Brazil and other regions. Marketing efforts include events like the Zendesk AI Summit and extensive use of analytics and advertising platforms. The absence of direct contact emails or phone numbers suggests a preference for controlled lead generation via forms. The company maintains a professional ecosystem with partner sites and a strong social media presence, reinforcing its market position and growth orientation.

Security posture

The website exhibits a solid security foundation with HTTPS, strict transport security, X-Frame-Options, and X-XSS-Protection headers. Cookie consent is managed via OneTrust, indicating GDPR compliance. No exposed sensitive data or vulnerable libraries were detected in the analysis. However, the lack of explicit incident response contacts and vulnerability disclosure policies represents a gap in transparency and readiness communication. The security score is high but could be improved by publishing dedicated security policies and contact channels for reporting incidents or vulnerabilities. Overall, Zendesk demonstrates a mature security culture aligned with enterprise standards.

Recommendations

  1. Publish explicit incident response contact information and procedures on the website.
  2. Implement and publicize a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  3. Enhance visibility of security certifications and compliance attestations to build customer trust.
  4. Maintain and regularly update cookie and privacy policies to reflect evolving regulations and practices.
  5. Continue monitoring and updating third-party libraries and scripts to mitigate potential vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Zendesk
Description
Premiado software de atendimento ao cliente viabilizado por IA usado por 200 mil clientes, oferecendo atendimento via mensagem de texto, celular, telefone, e-mail, chat em tempo real e redes sociais.
Key services
Zendesk AI, Agentes de IA, Copilot, Trabalho com tickets, Mensagens e chat em tempo real, Central de Ajuda, Voz, Controle de qualidade, Gerenciamento da força de trabalho
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Marketo, OneTrust, Adobe Web SDK, Cloudflare DNS
Frameworks
Next.js
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Security headers present
  • Cookie consent mechanism
  • No exposed sensitive data detected

Analytics and tracking

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

Advertising

Ad networks
Google Ads
Tracking pixels
Marketo, Google Ads Conversion Tracking
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 professionally presented in Portuguese targeting Brazilian market.
  3. Strong focus on AI-powered customer service solutions.
  4. Multiple language versions and international presence indicated.
  5. Robust use of modern web technologies and marketing tools.
  6. Security headers and HTTPS are properly configured.
  7. Privacy and cookie policies are present and GDPR compliant.
  8. Contact information is available via contact form; no direct emails or phone numbers found.
  9. No explicit incident response or vulnerability disclosure information found.
Technical notes

Notes

The website is built on a modern technology stack including React and Next.js, ensuring server-side rendering and fast load times. Integration with marketing and analytics tools like Marketo, Google Tag Manager, and OneTrust demonstrates advanced digital marketing maturity. Hosting via Cloudflare DNS and CDN services contributes to performance and security. The site is mobile-optimized with responsive design and accessibility features. SEO is well addressed with appropriate meta tags and Open Graph data. No CMS was explicitly detected, suggesting a custom or proprietary solution. Overall, the technical infrastructure supports a scalable and secure enterprise web presence.
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. 70/100Medium28 findingsView report
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