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Security report for zendesk.tw

Zendesk · Technology · Taiwan

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

Security score

74/100

Risk levelMedium

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

Zendesk is a globally recognized provider of customer service software solutions, offering a comprehensive AI-powered platform trusted by over 200,000 customers. The Taiwan localized website presents a professional, well-structured, and content-rich portal tailored for enterprise and SMB audiences in the region. Technically, the site leverages modern frameworks such as Next.js and React, hosted on AWS CloudFront CDN, ensuring fast performance and mobile optimization. Security posture is strong with HTTPS enforcement, standard security headers, and cookie consent mechanisms, although there is room for improvement in CSP implementation and incident response transparency. Overall, the domain registration and WHOIS data align well with the business claims, supporting high legitimacy and trustworthiness.

Scanned

This is an earlier scan of zendesk.tw. View the latest report

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.tw

This scan found 18 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

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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
85
Network security
100
GDPR outside view
95
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

Zendesk operates in the technology sector, focusing on SaaS customer service solutions enhanced with AI capabilities. Their business model targets enterprises and small to medium businesses, providing tools for ticketing, messaging, voice, and workforce management. The company maintains a strong global presence with localized sites and multi-language support, indicating a mature partnership ecosystem and strategic market positioning. The website reflects a consistent brand image and professional content, reinforcing Zendesk's market leadership and customer trust.

Security posture

The website demonstrates a mature security posture with HTTPS, security headers like X-Frame-Options and HSTS, and cookie consent compliance. No critical vulnerabilities or exposed sensitive data were detected. However, the absence of a security.txt file and incident response contact details suggests areas for enhancement. Compliance with GDPR is indicated through privacy policies and cookie management. The use of third-party scripts is well managed but requires ongoing monitoring to mitigate supply chain risks.

Recommendations

  1. Implement a Content Security Policy (CSP) header to mitigate cross-site scripting risks.
  2. Publish a security.txt file to facilitate vulnerability reporting and improve transparency.
  3. Provide explicit incident response contact information to enhance trust and readiness.
  4. Disclose security certifications and frameworks (e.g., ISO 27001) to strengthen security posture visibility.
  5. Regularly audit and update third-party scripts and libraries to prevent vulnerabilities.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Zendesk
Description
Zendesk 是屢獲殊榮的客戶服務軟體，深受超過 200,000 家客戶信賴。 透過簡訊、行動裝置、電話、電子郵件、即時交談以及社群媒體提高客戶滿意度。
Key services
人工智慧客服專員, 專員助理, 工單處理, 傳訊與即時交談, 客服中心, 語音, 品質保證, 資料隱私權與保護, 人力管理
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Google Tag Manager, Marketo, OneTrust, Adobe Web SDK, Microsoft Authentication Library (MSAL), Google Identity Services
Frameworks
Next.js
Platforms
AWS 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
Google Analytics, 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 professionally presented in Traditional Chinese targeting Taiwan market.
  3. Strong use of modern web technologies and CDNs for performance.
  4. Comprehensive navigation with multi-language support.
  5. Good privacy and cookie compliance with consent mechanisms.
  6. No exposed sensitive data or obvious security vulnerabilities detected.
  7. WHOIS data supports legitimacy and business credibility.
Technical notes

Notes

The website is built on a modern React/Next.js stack, leveraging AWS CloudFront for CDN delivery, ensuring fast load times and excellent mobile responsiveness. Integration with marketing and analytics tools such as Marketo, Google Tag Manager, and OneTrust indicates a mature digital marketing infrastructure. Accessibility and SEO optimizations are well implemented, contributing to a positive user experience. The technical architecture supports scalability and performance but should maintain vigilance on third-party dependencies for security.
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. 74/100Medium25 findingsView report
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