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Security report for airbnb.nl

Airbnb · Real Estate · Netherlands

Medium risk. 10 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

55/100

Risk levelMedium

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

Airbnb is a leading global online marketplace specializing in vacation home rentals, experiences, and hosting services. The platform connects travelers with hosts worldwide, offering millions of listings across over 220 countries and regions. The website targets a broad audience of travelers and hosts, providing a seamless booking experience with a strong brand presence and consistent design. Technically, the site leverages modern web technologies including React, Google Maps API, and advanced performance monitoring tools, ensuring a fast, mobile-optimized, and accessible user experience. Security measures such as HTTPS, CSRF tokens, and security headers are implemented, reflecting a mature security posture. However, explicit privacy and cookie policies were not detected in the provided content, indicating room for improvement in privacy compliance. Overall, Airbnb's website demonstrates high professionalism, trustworthiness, and technical sophistication, supporting its market leadership in the hospitality sector.

Scanned

This is an earlier scan of airbnb.nl. View the latest report

NIS2 and GDPR posture

GDPR outside view
10/ 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

10 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 airbnb.nl

This scan found 25 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
62
Security headers
15
Email security
70
DNS health
75
Network security
100
GDPR outside view
10
Average
55

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

Airbnb operates a platform business model in the hospitality and real estate sectors, generating revenue primarily through service fees on bookings. Its competitive advantage lies in its extensive global network, diverse listing inventory, and integrated experiences offering. The company targets both leisure and business travelers, as well as hosts seeking to monetize their properties. Strategic partnerships and integrations with payment processors and mapping services enhance its ecosystem. Growth indicators include continuous feature experimentation and technology upgrades. The absence of explicit contact and compliance information in the HTML suggests these may be located elsewhere or require better visibility. Airbnb's brand consistency and trust signals support strong customer confidence.

Security posture

The website exhibits a strong security posture with enforced HTTPS, presence of security headers, and use of CSRF tokens. Error reporting via Bugsnag and performance monitoring indicate proactive operational security. No vulnerabilities or exposed sensitive data were identified in the analyzed content. However, the lack of a publicly visible security policy or incident response contact points limits transparency. Compliance with GDPR is implied but not explicitly documented in the content. The site would benefit from publishing a vulnerability disclosure policy and clear security contact channels to enhance trust and incident handling readiness.

Recommendations

  1. Publish and link comprehensive privacy and cookie policies prominently on the website.
  2. Provide explicit contact information for security incidents and general inquiries.
  3. Establish and publicize a vulnerability disclosure program or security.txt file.
  4. Regularly audit third-party scripts and dependencies for vulnerabilities.
  5. Enhance transparency around data protection officer and compliance certifications.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Airbnb
Description
Boek een accommodatie op Airbnb voor elk type reis → 7 miljoen vakantiewoningen → 2 miljoen Favorieten van gasten → Meer dan 220 landen en regio's wereldwijd
Key services
Vacation home rentals, Experiences, Hosting services
Content quality
good
Branding
consistent

Technology

Stack
React 18.3.1, Google Tag Manager, Google Maps API, Mapbox, D3.js, OneTrust (cookie management), Bugsnag (error reporting), PerformanceObserver API, CSS with Aphrodite and Linaria
Frameworks
React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • CSRF tokens present (meta tags)
  • Error reporting with Bugsnag
  • Use of security headers
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Tag Manager, Bugsnag
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Bugsnag
Transparency
basic

Site quality

Design
excellent
User experience
excellent
Content relevance
good
Navigation
good
Professionalism
excellent
Trustworthiness
high

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is relevant to vacation rentals and travel services.
  3. No explicit privacy or cookie policies found in the provided HTML snippet.
  4. No direct contact emails or phone numbers found in the HTML content.
  5. Use of modern web technologies and frameworks.
  6. Strong security posture with HTTPS and security headers.
  7. No signs of WAF or content blocking.
  8. Good SEO practices with structured data and meta tags.
  9. No adult or questionable content detected.
Technical notes

Notes

The website uses a modern React-based frontend with advanced client-side performance and error monitoring tools. Integration with multiple map providers and analytics services indicates a complex but well-managed infrastructure. The site is mobile-optimized with good accessibility features and SEO structured data. No CMS or hosting provider details were explicitly detected. Performance is fast, supported by preloading scripts and optimized assets. Technical risks are minimal but continuous monitoring of third-party dependencies is recommended to mitigate supply chain risks.
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. 66/100 +8Medium27 findingsView report
  2. 58/100Medium32 findingsView report
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