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Security report for marriott.com

Marriott International · Hospitality · United States

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

Security score

72/100

Risk levelMedium

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

Marriott International operates a globally recognized hospitality brand with a comprehensive portfolio of hotels, resorts, and vacation rentals. The website serves as a primary booking platform for Marriott Bonvoy members and general travelers, offering direct booking, loyalty program information, and promotional offers. The site demonstrates a mature digital infrastructure leveraging modern web technologies such as React (Next.js), Adobe Experience Manager, and advanced analytics and personalization tools. Security posture is strong with HTTPS enforcement, content security policies, and cookie consent mechanisms, although additional security headers could enhance protection. Privacy compliance is well addressed with clear policies and consent management. The absence of WHOIS data is notable but likely due to registry restrictions rather than malicious intent. Overall, the website is professional, trustworthy, and well-optimized for user experience and performance.

Scanned

This is an earlier scan of marriott.com. View the latest report

NIS2 and GDPR posture

GDPR outside view
58/ 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 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 Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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 marriott.com

This scan found 20 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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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
30
Email security
92
DNS health
85
Network security
100
GDPR outside view
58
Average
72

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

Marriott holds a leading position in the hospitality industry with a large enterprise-scale operation. Its business model focuses on direct hotel bookings, loyalty rewards, and credit card partnerships, targeting a broad audience of leisure and business travelers worldwide. The company leverages a strong partnership ecosystem including vacation home rentals and customer support services. The website reflects Marriott's global reach and brand consistency, supporting multiple languages and regions. Marketing and analytics tools are extensively used to optimize customer engagement and conversion. The company shows strong growth indicators and a strategic focus on digital transformation.

Security posture

The website exhibits a high level of security maturity with enforced HTTPS, content security policies, and cookie consent frameworks. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. However, some standard security headers like Strict-Transport-Security and X-Frame-Options are not explicitly observed and could be added to strengthen defenses. Incident response and vulnerability disclosure information are not publicly visible, which is a potential gap in transparency. Overall, the security posture is robust but could benefit from enhanced header policies and published security policies.

Recommendations

  1. Implement additional HTTP security headers such as Strict-Transport-Security, X-Frame-Options, and X-Content-Type-Options.
  2. Publish a clear security policy and vulnerability disclosure program to improve transparency and trust.
  3. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  4. Enhance visibility of incident response contacts and procedures on the website.
  5. Continue investing in privacy compliance and user consent management to maintain regulatory adherence.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Marriott International
Description
Marriott International operates a global portfolio of hotels and related lodging facilities, offering luxury, resorts, extended stay, and pet-friendly hotels worldwide.
Key services
Hotel bookings, Loyalty program (Marriott Bonvoy), Credit card rewards, Vacation home rentals
Content quality
excellent
Branding
consistent

Technology

Stack
React (Next.js), Adobe Launch (Tag Manager), Dynatrace monitoring, OneTrust cookie consent, Google Maps API, Various JavaScript libraries
Frameworks
Next.js, Adobe Experience Manager (AEM)
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Content Security Policy present
  • Cookie consent mechanism implemented
  • No exposed sensitive data detected in HTML

Analytics and tracking

Services
Adobe Analytics, Dynatrace
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Adobe Target, Dynatrace
Tracking pixels
Adobe Analytics, OneTrust, Dynatrace
Marketing tools
Adobe Target, Adobe Launch, OneTrust Cookie Consent
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 rich content and interactive features
  2. Strong branding and consistent user experience
  3. Comprehensive privacy and cookie policies with consent mechanisms
  4. Use of modern web technologies and performance optimization
  5. No visible security or content safety issues
  6. WHOIS data unavailable, possibly due to registry restrictions
Technical notes

Notes

The website is built on a modern technology stack including React with Next.js for server-side rendering, Adobe Experience Manager as CMS, and Adobe Launch for tag management. Performance optimizations such as image preloading, font preloading, and asynchronous script loading are implemented. The site is mobile-optimized and accessible with ARIA roles and keyboard navigation support. Analytics and personalization are powered by Adobe Analytics, Dynatrace, and OneTrust. Hosting details are not explicitly identified but likely involve enterprise-grade cloud infrastructure. The technical implementation is advanced with minor opportunities for further security header 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. 75/100 +21Medium26 findingsView report
  2. 54/100Medium25 findingsView report
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