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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

63/100

Risk levelMedium

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

Flix SE operates the FlixBus platform, providing affordable and sustainable bus travel services primarily in Ireland and internationally. The company partners with local coach operators to offer extensive route coverage, with over 6,800 destinations in more than 40 countries. The website is professionally designed, mobile-optimized, and provides a user-friendly booking experience supported by a modern technical infrastructure including React, CDN delivery, and advanced analytics. Security posture is strong with HTTPS, security headers, and consent management implemented, though explicit security policies and incident response contacts are not published. The domain WHOIS data is privacy protected, which is typical for commercial entities, and no suspicious indicators were found. Overall, the site demonstrates a mature digital presence with good compliance and trust indicators.

Scanned

This is an earlier scan of flixbus.ie. View the latest report

NIS2 and GDPR posture

GDPR outside view
73/ 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 24 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
72
Security headers
15
Email security
40
DNS health
75
Network security
100
GDPR outside view
73
Average
63

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

FlixBus holds a leading position in the international bus travel market, leveraging a platform business model that connects travelers with local transport providers. Their extensive network and brand recognition provide competitive advantages. Revenue streams likely include ticket sales and ancillary services. The target audience is broad, encompassing general travelers seeking affordable and eco-friendly transport options. The company maintains a strong partnership ecosystem and invests in digital tools such as mobile apps and real-time trip tracking to enhance customer experience. Growth is supported by geographic expansion and sustainability initiatives.

Security posture

The website exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and a consent management platform ensuring GDPR compliance. No exposed sensitive data or vulnerable libraries were detected in the analyzed content. However, the absence of publicly available security policies or incident response contacts suggests room for improvement in transparency and readiness. The use of multiple third-party scripts necessitates ongoing security audits to mitigate supply chain risks. Overall, the security measures align well with industry best practices for a consumer-facing travel platform.

Recommendations

  1. Publish a dedicated security policy and incident response plan on the website to improve transparency and trust.
  2. Provide explicit contact channels for security incidents such as security@ or abuse@ email addresses.
  3. Regularly review and update third-party scripts and dependencies to minimize vulnerability exposure.
  4. Enhance user privacy controls and clearly communicate data retention policies.
  5. Continue investing in accessibility and mobile optimization to maintain high user experience standards.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Flix SE
Description
FlixBus offers affordable bus travel with over 6,800 destinations in 40+ countries, generous luggage allowance, Wi-Fi and plug sockets onboard. They partner with local coach companies in Ireland to provide seamless travel.
Key services
Bus travel booking, Coach travel in Ireland, Trip tracking, Mobile app for booking and trip management
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, React (Honeycomb React CSS tags), Google Tag Manager, Usercentrics (Consent Management), Datadog RUM, Cloudfront CDN
Frameworks
React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Security headers present
  • Consent management implemented
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics (via GTM), Datadog RUM
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Adtriba
Tracking pixels
Datadog RUM
Marketing tools
Usercentrics Consent Management
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 rich content and interactive features.
  2. Strong brand presence with consistent branding and professional design.
  3. Comprehensive privacy and cookie policies with consent management implemented.
  4. Multiple external trusted domains linked, including social media and corporate sites.
  5. No contact emails or phone numbers explicitly found in the HTML content.
  6. No security or incident response contact information published.
  7. Use of modern web technologies and analytics tools.
  8. No signs of adult or unsafe content.
  9. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built using modern web technologies including React and is hosted on a CDN infrastructure (Amazon Cloudfront), ensuring fast content delivery and scalability. The use of Usercentrics for consent management and Datadog for real user monitoring indicates a mature approach to privacy and performance analytics. The site is mobile-optimized with responsive design and accessibility features. SEO is well addressed with proper meta tags and structured navigation. Technical risks are minimal but include dependency on multiple third-party scripts which require vigilant security management.
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. 58/100Medium37 findingsView report
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