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Security report for tripadvisor.com

Hospitality · N/a

Medium risk. 7 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

70/100

Risk levelMedium

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

The website tripadvisor.com is a globally recognized travel and hospitality platform established in 1999, offering user-generated reviews, travel guides, and booking services. It operates as a large enterprise within the hospitality sector, targeting travelers seeking reliable travel information and booking options. However, the provided HTML content is inaccessible due to an active bot mitigation mechanism (DataDome CAPTCHA), which prevents automated analysis of the site's actual content, policies, and contact information. Technically, the domain is supported by a robust DNS infrastructure utilizing AWS and Google Domains, but DNSSEC is not enabled. The presence of a CAPTCHA indicates a strong security posture against automated threats, though no security headers or privacy-related policies are visible in the snapshot. The WHOIS data confirms the domain's legitimacy and long-standing presence, consistent with a reputable enterprise. Security-wise, the lack of visible security headers and privacy policies in the accessible content limits the assessment. The active WAF/bot mitigation reduces the ability to verify compliance with GDPR or other regulations. Overall, the site demonstrates strong domain legitimacy but lacks publicly accessible security and privacy transparency in the provided data. Given the content blocking, the overall risk assessment is cautious, recommending enhanced transparency of privacy and security policies and the implementation of DNSSEC. Strategic recommendations include publishing clear privacy and cookie policies, exposing security headers, and providing incident response contacts to improve trust and compliance.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
50/ 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

7 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"

    • 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 Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

    • 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

Need hands-on remediation? Email guard@offseq.com

Keep watching tripadvisor.com

This scan found 19 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
82
Security headers
20
Email security
87
DNS health
80
Network security
100
GDPR outside view
50
Average
70

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 tripadvisor.com, from OffSeq Breach.

Total records
89,010
Employees
20
Customers
88,751
Third parties
239
Weak passwords
14%

Latest record dated 2026-06-13 · 89 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 tripadvisor.com.

Select it in the checkout above.

Masked preview

  • –jira.tripadvisor.com2026-06-13
  • –exchange.tripadvisor.com2026-06-13
  • –federate.tripadvisor.com2026-06-12
  • –hipchat.corp.tripadvisor.com2026-06-12
  • –tripadvisor.com2026-02-07

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

Tripadvisor holds a leading position in the travel and hospitality industry, leveraging user-generated content to drive engagement and monetization through advertising and affiliate bookings. Its business model capitalizes on a large global user base seeking travel reviews and booking services. The company benefits from a mature domain and robust DNS infrastructure, indicating operational stability. However, the lack of visible contact and policy information in the accessible content suggests opportunities to improve user trust and regulatory compliance. The absence of detected partner or subsidiary domains in the snapshot limits insights into its broader ecosystem.

Security posture

The website employs advanced bot mitigation via DataDome CAPTCHA, indicating a proactive approach to mitigating automated threats and scraping. However, the absence of visible security headers and privacy policies in the accessible content limits the evaluation of comprehensive security practices. DNSSEC is not enabled, which is a recommended enhancement for DNS security. No incident response or vulnerability disclosure information is publicly visible. The WHOIS data is consistent and legitimate, with no suspicious patterns detected. Overall, the security posture appears cautious but lacks transparency in publicly accessible security and privacy documentation.

Recommendations

  1. Publish comprehensive and easily accessible privacy and cookie policies to enhance GDPR compliance and user trust.
  2. Enable DNSSEC to improve DNS security and prevent spoofing.
  3. Implement and expose standard security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security.
  4. Provide clear contact information for security incidents, including a dedicated security or abuse email address.
  5. Increase transparency around data collection, user consent mechanisms, and vulnerability disclosure processes.
Site observations

Automated reading of the public site. Ratings are indicative.

Generic detected. Website content is blocked by a security mechanism (DataDome CAPTCHA) indicating a WAF or bot mitigation service is active. These observations may be incomplete. For a fuller analysis, contact guard@offseq.com.

Business

Description
Tripadvisor is a travel and hospitality website providing user-generated reviews, travel guides, and booking services.
Key services
User reviews, Travel guides, Hotel and restaurant bookings
Content quality
poor

Technology

Stack
Cloudflare, DataDome CAPTCHA, AWS DNS, Google Domains DNS

Analytics and tracking

Site quality

Design
poor
User experience
poor
Content relevance
poor
Navigation
poor
Professionalism
poor
Trustworthiness
low

Key observations

  1. Website content is inaccessible due to a bot mitigation CAPTCHA (DataDome).
  2. No visible privacy, cookie, or terms of service policies in the provided HTML snapshot.
  3. No contact information or forms detected in the provided content.
  4. WHOIS data indicates a well-established domain with no DNSSEC enabled.
  5. Multiple authoritative DNS providers used, indicating robust DNS infrastructure.
  6. No security headers or meta tags detected in the minimal HTML content.
  7. Website likely uses advanced bot protection, limiting automated content analysis.
Technical notes

Notes

The domain tripadvisor.com is supported by a multi-provider DNS infrastructure including AWS and Google Domains, indicating high availability and resilience. The presence of DataDome CAPTCHA scripts suggests the use of advanced bot mitigation technology to protect site content and user data. However, the minimal HTML content and lack of meta tags or structured data in the snapshot limit the assessment of SEO, accessibility, and mobile optimization. The site does not currently enable DNSSEC, which is a recommended security enhancement. Overall, the technical infrastructure appears robust but could benefit from improved transparency and modern security header implementations.
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. 70/100Medium29 findingsView report
  2. 70/100Medium28 findingsView report
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