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Security report for flixbus.ie

Flix SE · Transportation · Ireland

Medium risk. 7 critical or high findings in Email security, Security headers and 2 other checks.

Security score

58/100

Risk levelMedium

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

Flix SE operates the website www.flixbus.ie, providing affordable and extensive bus travel services across Ireland and internationally. The company partners with local coach operators and offers a large network of over 8,000 destinations in more than 40 countries. The website is professionally designed, mobile-optimized, and provides comprehensive travel information, booking capabilities, and real-time trip tracking. The technical infrastructure leverages modern technologies including Drupal CMS, cloud CDN, and advanced analytics tools. Security posture is strong with HTTPS, security headers, and consent management in place, though explicit incident response and vulnerability disclosure policies are not publicly found. Overall, the site demonstrates a mature digital presence with high trustworthiness and user experience quality.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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. Email security

    SPF, DKIM and DMARC stop others sending email that looks like it comes from your domain, a common route to phishing and invoice fraud.

    • Critical

      No email authentication configured

      Domain is vulnerable to email spoofing

      What to do: Implement SPF, DKIM, and DMARC immediately

  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';…

  3. GDPR outside view

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

    • High

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

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

Keep watching flixbus.ie

This scan found 28 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
67
Security headers
15
Email security
40
DNS health
60
Network security
100
GDPR outside view
68
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 flixbus.ie, from OffSeq Breach.

No leaked records found

Breach holds no records for flixbus.ie right now. New leaks arrive continuously, so monitoring on Breach alerts you if that changes.

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

Flix SE holds a leading position in the international bus transportation market, leveraging a broad global network and multiple subsidiaries such as FlixTrain and Greyhound. The business model focuses on online ticket sales and partnerships with local operators, targeting general consumers seeking affordable and sustainable travel options. The company maintains a strong brand presence with extensive social media engagement and a clear focus on sustainability. Growth is supported by a wide geographic footprint and a user-friendly digital platform. Strategic partnerships and a comprehensive service offering position Flix SE well in the competitive transportation sector.

Security posture

The website employs robust security measures including HTTPS, multiple security headers, and a consent management platform for GDPR compliance. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the absence of publicly available incident response or vulnerability disclosure information represents a gap in transparency. The company should consider publishing these policies and providing clear security contact channels to enhance trust and preparedness. Overall, the security posture is strong but could be improved with better communication of security governance.

Recommendations

  1. Publish a dedicated incident response and vulnerability disclosure policy page with clear contact information.
  2. Enhance transparency by providing a security contact email or form for reporting issues.
  3. Regularly audit third-party scripts and libraries to ensure no vulnerabilities are introduced.
  4. Maintain and communicate compliance with GDPR and other relevant data protection regulations.
  5. Continue investing in mobile optimization and accessibility to maintain excellent user experience.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Flix SE
Description
FlixBus offers affordable bus travel with over 8,000 destinations in 40+ countries, generous luggage allowance, Wi-Fi and plug sockets onboard. It partners with local coach operators in Ireland and globally to provide extensive bus and train routes.
Key services
Bus ticket booking, Bus routes and schedules, Real-time trip tracking, Mobile app for booking and travel management, Onboard services including Wi-Fi
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Usercentrics CMP, Datadog RUM, Honeycomb UI components, Cloudfront CDN
Frameworks
Drupal (implied by asset paths)
Platforms
Web, Mobile app (promoted)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • Consent management platform for cookies
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Datadog RUM, Pulse CRO
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Adjust
Tracking pixels
Datadog RUM, Usercentrics CMP, Pulse CRO
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 rich content and interactive features.
  2. Strong focus on user experience and mobile optimization.
  3. Comprehensive privacy and cookie policies with consent management.
  4. No direct contact emails or phone numbers found on main pages.
  5. Use of multiple external trusted domains and CDNs.
  6. No signs of suspicious or malicious content.
  7. WHOIS data unavailable, likely due to privacy protection.
Technical notes

Notes

The website is built on Drupal CMS and utilizes a modern tech stack including JavaScript frameworks, cloud CDN (Amazon Cloudfront), and advanced analytics tools such as Datadog RUM and Usercentrics CMP for consent management. Performance is optimized with preloading, preconnect hints, and asynchronous script loading. The site is mobile responsive and includes accessibility features such as skip links and ARIA attributes. SEO is supported by canonical links, hreflang tags for multilingual support, and structured navigation. No technical debt or major risks were identified, indicating a well-maintained and modern infrastructure.
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. 63/100Medium33 findingsView report
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