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Security report for thetrainline.com

Trainline.com Limited · Transportation · United Kingdom

Low risk. 1 critical or high finding in SSL/TLS.

Security score

88/100

Risk levelLow

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

Trainline.com Limited operates a leading independent rail and coach travel platform, providing users across Europe and the UK with the ability to search, compare, and purchase train and bus tickets. The company holds a strong market position as a trusted intermediary with over 270 operators and coverage in 45 countries. Their digital presence is supported by a modern, performant website and mobile app, enabling seamless journey management for millions of travelers. The platform emphasizes user convenience and competitive pricing, with a clear focus on the transportation sector. Technically, the website leverages contemporary web technologies including React, JavaScript, and integrates advanced analytics and monitoring tools such as New Relic and Google Tag Manager. The presence of anti-bot services like Datadome and tracking via Branch.io indicates a mature digital infrastructure designed for performance and security. The site is well optimized for mobile devices and accessibility, with good SEO practices evident from metadata and structured data. From a security standpoint, the website enforces HTTPS with strong SSL configuration and employs multiple security headers including CSP and HSTS. The use of bot mitigation and monitoring tools further strengthens its security posture. However, explicit security policies and incident response contacts are not publicly disclosed, representing an area for improvement. No vulnerabilities or exposed sensitive data were detected in the analysis. Overall, Trainline.com demonstrates a high level of professionalism, technical maturity, and business credibility. The lack of public WHOIS data is consistent with privacy protection practices common among large enterprises. The platform is safe for general audiences, with no adult or questionable content. Strategic recommendations include enhancing transparency around security policies and incident response to further build user trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 100 · Low
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

1 finding rated critical or high. Fix these first.

  1. SSL/TLS

    TLS encrypts the connection and proves the site is really yours. Weak or expiring certificates trigger browser warnings and put traffic at risk.

    • High

      Weak Protocols Supported

      Server supports weak protocols: TLSv1.1

      What to do: Disable TLS 1.0, TLS 1.1, and all SSL versions

      • CWE-327
      • OWASP A04:2025
      • ASVS V12.1.1

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Keep watching thetrainline.com

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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
82
Security headers
85
Email security
85
DNS health
85
Network security
100
GDPR outside view
88
Average
88

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 thetrainline.com, from OffSeq Breach.

Total records
70,368
Employees
13
Customers
70,281
Third parties
74
Weak passwords
0%

Latest record dated 2026-06-05 · 52 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 thetrainline.com.

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Masked preview

  • –fs.thetrainline.com2026-06-05
  • –fs.thetrainline.com2026-06-03
  • –fs.thetrainline.com2026-05-15
  • –fs-corp.thetrainline.com2025-11-25
  • –fs.thetrainline.com2025-11-25

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

Open in Breach(opens in a new tab)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

Trainline holds a competitive advantage as a leading independent travel platform specializing in rail and coach ticketing across Europe. Its business model centers on aggregating multiple operators to offer users comprehensive travel options and competitive pricing. Revenue streams likely include commissions from ticket sales and partnerships. The company targets a broad customer base of travelers seeking convenient and cost-effective transportation solutions. Growth indicators include a wide geographic footprint and a strong digital ecosystem supported by mobile apps and web services. Partnerships and subsidiaries, such as Capitaine Train, expand its market reach. The company maintains a robust online presence with active social media channels and customer engagement platforms, reinforcing its market position.

Security posture

Trainline exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and integration of anti-bot and monitoring services. The use of Datadome for bot mitigation and New Relic for performance and error monitoring indicates proactive security management. However, the absence of a publicly accessible security policy or incident response contact limits transparency. No signs of vulnerabilities or data exposure were found, suggesting effective security controls. Compliance with GDPR is implied through privacy and cookie policies with consent mechanisms. To enhance security maturity, publishing explicit security policies and vulnerability disclosure programs is recommended.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and compliance.
  2. Provide clear incident response contact information for security issues.
  3. Implement and publicize a vulnerability disclosure or security.txt file to encourage responsible reporting.
  4. Regularly review and update privacy and cookie policies to maintain GDPR compliance.
  5. Enhance transparency around data retention and user data handling practices.

Contact details published on the site

Addresses
Legal name
Trainline.com Limited
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Trainline.com Limited
Description
Trainline is the world's leading independent rail and coach travel platform selling rail and coach tickets to millions of travellers worldwide, enabling them to seamlessly search, book and manage their journeys all in one place via its highly rated website and mobile app.
Key services
Train ticket booking, Bus ticket booking, Travel information, Mobile app for ticket management
Content quality
excellent
Branding
consistent

Technology

Stack
React, JavaScript, Google Tag Manager, New Relic, Branch.io, Datadome
Frameworks
React
Platforms
Web
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of CSP
  • Use of anti-bot service (Datadome)
  • Use of New Relic monitoring

Analytics and tracking

Services
New Relic, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google DoubleClick
Tracking pixels
New Relic, Branch.io, Trustpilot
Marketing tools
Branch.io
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 challenge.
  2. Content is professionally presented and relevant to train and bus ticket booking.
  3. Strong use of modern web technologies and analytics.
  4. Privacy and cookie policies are present with consent mechanisms.
  5. WHOIS data is not publicly available, likely due to privacy protection.
  6. No security policy or incident response contact page found.
  7. No vulnerability disclosure or security.txt detected.
  8. Multiple official social media and trust signals present.
Technical notes

Notes

The website is built on a modern React framework with extensive use of JavaScript and asynchronous loading for performance optimization. Integration with analytics and monitoring tools such as New Relic and Google Tag Manager supports operational insights and user behavior tracking. The presence of Branch.io indicates advanced marketing and user engagement capabilities. The site is mobile optimized and accessible, with good SEO metadata and structured data enhancing search engine visibility. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting details are not explicit but the use of CDN and third-party services indicates a scalable infrastructure. Overall, the technical implementation supports a fast, reliable, and user-friendly experience.
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. 88/100Low20 findingsView report
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