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Security report for airbnb.ch

Airbnb, Inc. · Hospitality · Switzerland

Medium risk. 9 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

62/100

Risk levelMedium

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

Airbnb, Inc. operates a leading global online marketplace for short-term lodging and travel experiences, serving millions of users worldwide including the Swiss market via www.airbnb.ch. The platform offers a wide range of vacation rentals, unique homes, and experiences, targeting travelers and hosts globally. The website demonstrates a mature technical infrastructure leveraging modern web technologies such as React, Google Maps API, and advanced performance monitoring tools, ensuring a fast, accessible, and SEO-optimized user experience. Security posture is strong with HTTPS enforcement, CSP, and error monitoring, although explicit security policies and incident response contacts are not publicly detailed. Privacy compliance is robust with GDPR-aligned policies and cookie consent mechanisms. Overall, the site reflects a professional, trustworthy, and enterprise-grade digital presence.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
35/ 100 · High
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

9 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 airbnb.ch

This scan found 22 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.

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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
90
Network security
100
GDPR outside view
35
Average
62

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 holds a dominant market position in the hospitality sector as a pioneer in peer-to-peer short-term rentals and experiences. Its business model revolves around connecting hosts and guests via a scalable online platform, generating revenue through service fees. The company targets a broad audience of travelers and hosts, with localized sites for many countries including Switzerland. The platform's extensive partner ecosystem and global reach support its growth and competitive advantage. The website content and structure reinforce Airbnb's brand consistency and trustworthiness, although direct contact details are primarily routed through help center forms rather than explicit corporate contacts.

Security posture

The website exhibits a high level of security maturity with enforced HTTPS, use of security headers, and integration of error reporting tools like Bugsnag. However, there is no publicly visible dedicated security policy or vulnerability disclosure program, which could enhance transparency and incident response readiness. No critical vulnerabilities or exposed sensitive data were detected in the analysis. Privacy policies and cookie consent align with GDPR requirements, supporting compliance. The absence of direct security contact channels and security.txt file suggests room for improvement in incident response communication.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and controls.
  2. Implement and publicize a vulnerability disclosure program or security.txt file.
  3. Provide clear incident response contact channels such as security@ or abuse@ emails.
  4. Regularly audit and update third-party scripts and dependencies to mitigate vulnerabilities.
  5. Enhance transparency around data retention policies and user privacy controls.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Airbnb, Inc.
Description
Buche eine Unterkunft auf Airbnb für jede Art von Reise → sieben Millionen Ferienunterkünfte → zwei Millionen Gäste-Favoriten → über 220 Länder und Regionen weltweit
Key services
Vacation rentals, Experiences, Hosting services
Content quality
excellent
Branding
consistent

Technology

Stack
React 18.3.1, Google Tag Manager, Google Maps API, Mapbox, IntersectionObserver, PerformanceObserver, Bugsnag (error reporting), CSS with Aphrodite and Linaria, Video elements with HEVC and WebM codecs
Frameworks
React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • CSRF tokens present (meta tags)
  • Error reporting via Bugsnag
  • Use of IntersectionObserver and PerformanceObserver for performance monitoring

Analytics and tracking

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

Advertising

Tracking pixels
Bugsnag
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 professional, well-structured, and localized for Switzerland (de-CH)
  3. Strong use of modern web technologies and performance optimizations
  4. Comprehensive SEO and accessibility features implemented
  5. No direct company contact emails or phone numbers found on homepage; contact via help center forms
  6. Privacy and cookie policies are present and GDPR compliant
  7. No explicit security policy or incident response contact publicly visible
  8. No vulnerability disclosure or security.txt found
  9. Strong brand consistency and trust indicators present
Technical notes

Notes

The website is built on a modern React framework with extensive use of client-side rendering and asynchronous data loading. It integrates multiple third-party services including Google Tag Manager, Google Maps API, and Bugsnag for analytics and error monitoring. The site employs advanced CSS-in-JS solutions (Aphrodite, Linaria) and video content optimized for multiple codecs. Performance is optimized with preloading scripts and assets, and accessibility features such as skip links and ARIA roles are implemented. Hosting details are not explicit but likely leverage cloud infrastructure. Overall, the technical implementation supports a fast, scalable, and user-friendly platform with minor opportunities for enhanced security transparency.
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. 73/100 +11Medium24 findingsView report
  2. 62/100Medium29 findingsView report
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