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Security report for tripadvisor.dk

Hospitality · Denmark

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

61/100

Risk levelMedium

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

The website tripadvisor.dk is currently inaccessible due to an active CAPTCHA challenge implemented by a third-party security service (captcha-delivery.com). This prevents extraction of meaningful content, metadata, or contact information. The domain is registered since 2005 with CSC Digital Brand Service, Inc, indicating a legitimate and established presence consistent with Tripadvisor's global brand. Due to the blocking mechanism, no direct assessment of privacy policies, cookie consent, or security headers is possible. The site likely serves the Danish market for hospitality and travel reviews, consistent with Tripadvisor's business model. The technical infrastructure includes bot mitigation services but lacks visible details on CMS or hosting. Security posture cannot be fully evaluated but domain registration data suggests legitimacy. Overall, the site is enterprise scale, serving hospitality sector users in Denmark, but the current WAF challenge limits detailed analysis.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
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

8 findings rated critical or high. Fix these first.

  1. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

    • 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

  2. 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';…

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

Keep watching tripadvisor.dk

This scan found 23 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

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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
70
DNS health
70
Network security
100
GDPR outside view
25
Average
61

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

Tripadvisor.dk is part of the Tripadvisor brand, a major player in the hospitality and travel review industry. The domain age and registrar data support its authenticity. The business model revolves around user-generated content, reviews, and travel planning services targeting consumers and travelers in Denmark. The site likely generates revenue through advertising, affiliate marketing, and partnerships with travel providers. The presence of CAPTCHA indicates a focus on protecting the site from automated abuse, reflecting a mature operational environment. No direct partner or subsidiary domains were identified in the provided content. The lack of visible contact or policy pages in the sample limits deeper business intelligence extraction.

Security posture

The website employs a CAPTCHA challenge from captcha-delivery.com, indicating an active web application firewall or bot mitigation service to prevent automated attacks and scraping. However, no security headers or SSL configuration details were available for review. The absence of visible privacy or security policies in the provided content is a gap, though this may be due to content blocking. No vulnerabilities or exposed sensitive data were detected in the limited HTML. Incident response and vulnerability disclosure mechanisms could not be confirmed. Overall, the security posture appears to rely heavily on perimeter defenses but lacks visible transparency in policies or contact channels.

Recommendations

  1. Provide accessible versions of key policy pages (privacy, cookie, terms) without CAPTCHA blocking to improve transparency and compliance.
  2. Implement and expose standard security headers (CSP, HSTS, X-Frame-Options) to enhance security posture.
  3. Publish clear contact information and incident response channels to improve trust and compliance.
  4. Consider integrating GDPR-compliant cookie consent mechanisms visible to users.
  5. Regularly audit third-party scripts and security configurations to ensure no vulnerabilities or privacy risks.
Site observations

Automated reading of the public site. Ratings are indicative.

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

Business

Technology

Stack
captcha-delivery.com script

Analytics and tracking

Site quality

Trustworthiness
low

Key observations

  1. Website content is inaccessible due to a CAPTCHA challenge.
  2. No metadata, forms, or contact information visible in the provided HTML.
  3. No privacy, cookie, or terms of service policies detected in the provided content.
  4. WHOIS data indicates a legitimate, long-standing domain registration.
  5. External scripts related to CAPTCHA service detected, no other third-party scripts visible.
  6. No visible security headers or SSL configuration details available from provided data.
Technical notes

Notes

The site uses a third-party CAPTCHA service (captcha-delivery.com) to protect against bots, indicating a focus on security. No CMS or platform details are visible, nor are there any meta tags or structured data in the provided HTML snippet. The domain is well aged and registered with a reputable registrar. Performance, mobile optimization, and SEO cannot be assessed due to content blocking. The technical stack appears minimal in the sample, likely due to the blocking page. Hosting provider details are not available. The site would benefit from improved metadata and structured data for SEO and accessibility.
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

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