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Security report for airbnb.cz

Airbnb · Hospitality · Czech Republic

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

Security score

58/100

Risk levelMedium

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

Airbnb.cz is the Czech localized version of Airbnb, a leading global online marketplace for short-term vacation rentals and experiences. The platform connects hosts offering homes, apartments, and unique stays with travelers worldwide. The website demonstrates a mature digital infrastructure leveraging modern web technologies such as React, Google Tag Manager, and map services like Mapbox and Gaode. Security is robust with HTTPS enforcement and security headers, although explicit privacy and cookie policies were not found in the provided HTML snippet, indicating room for improvement in privacy compliance visibility. The domain WHOIS data is unavailable, likely due to privacy protection, which is common for large enterprises but reduces transparency. Overall, the site is professional, trustworthy, and well-optimized for user experience and SEO.

Scanned

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.cz

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.

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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
10
Average
58

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 airbnb.cz, from OffSeq Breach.

Total records
3,625
Employees
0
Customers
3,567
Third parties
58
Weak passwords
10%

11 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 airbnb.cz.

Select it in the checkout above.

Breach keeps ingesting new leaks, so these numbers can grow between scans.

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 sector, targeting travelers seeking diverse accommodation options and hosts looking to monetize their properties. The company holds a strong market position as a pioneer and leader in the short-term rental market, with a vast global footprint spanning over 220 countries and regions. Revenue streams include service fees from bookings and experiences. The platform's ecosystem includes multiple regional domains, indicating a well-structured international presence. Strategic partnerships and integrations with mapping and analytics services enhance user experience and operational insights. The absence of direct contact information on the homepage suggests reliance on centralized customer support channels.

Security posture

The website exhibits a strong security posture with HTTPS enforced and multiple security headers implemented, including HSTS and CSP (partially via meta tags). No exposed sensitive data or vulnerable libraries were detected in the HTML content. The use of third-party scripts is managed with Partytown to isolate and optimize script loading. However, the lack of visible privacy and cookie policies and consent mechanisms in the provided content indicates a compliance gap that should be addressed to meet GDPR and other privacy regulations fully. Incident response and vulnerability disclosure information were not found, suggesting these may be handled offsite or in dedicated portals.

Recommendations

  1. Enhance privacy and cookie policy visibility on the homepage and ensure explicit consent mechanisms are implemented.
  2. Publish clear security and incident response policies accessible to users and security researchers.
  3. Implement full Content Security Policy headers server-side to strengthen protection against XSS and related attacks.
  4. Regularly audit and update third-party libraries and scripts to mitigate potential vulnerabilities.
  5. Increase transparency of WHOIS data if possible, or provide clear domain ownership information on the website.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Airbnb
Description
Vyber si pobyt na Airbnb bez ohledu na jeho typ → 7 milionů rekreačních pronájmů → 2 miliony nabídek označených Oblíbené u hostů → přes 220 zemí a regionů po celém světě
Key services
Home rentals, Experiences, Services
Content quality
good
Branding
consistent

Technology

Stack
React 18.3.1, Google Tag Manager, Partytown, Mapbox, Gaode Map, D3.js, OneTrust, CSS with Linaria
Frameworks
React
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of CSP
  • Secure cookies (implied)
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Bugsnag
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Bugsnag
Marketing tools
OneTrust
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. WHOIS data unavailable or privacy protected for the domain www.airbnb.cz.
  3. Website uses modern web technologies and frameworks.
  4. Strong branding and consistent user experience across multiple languages and regions.
  5. No direct contact emails or phone numbers found on the homepage HTML.
  6. Privacy and cookie policies not explicitly found in the provided HTML snippet.
  7. Security headers and HTTPS are properly implemented.
  8. Multiple international Airbnb domains linked via hreflang tags.
  9. No suspicious or malicious content detected.
Technical notes

Notes

The site uses a modern React-based frontend with advanced performance optimizations such as Partytown for third-party script management. Integration with Google Tag Manager and Bugsnag indicates active monitoring and analytics. Mapping services include Google Maps, Mapbox, and Gaode, supporting rich geolocation features. The CSS is managed with Linaria, enabling scoped styling. The site is mobile-optimized and accessible, with ARIA roles and skip links present. SEO is well addressed with canonical URLs, hreflang tags for internationalization, and structured data in JSON-LD format. Performance is moderate, likely due to the complexity and richness of content and scripts. No CMS or hosting provider details were explicitly found in the HTML content.
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. 69/100Medium25 findingsView report
  2. 69/100Medium25 findingsView report
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