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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, enabling millions of travelers across Europe and the UK to search, compare, and book train and bus tickets. The company positions itself as a market leader with a comprehensive service offering that includes journey planning and travel information. The website is professionally designed, mobile-optimized, and integrates modern technologies such as React, New Relic monitoring, and Branch.io for marketing and analytics. Security measures include HTTPS enforcement, Content Security Policy, and bot protection via DataDome, reflecting a mature security posture. However, the absence of publicly available WHOIS data and explicit security policy pages slightly reduce trust. Overall, the platform demonstrates strong business credibility and technical maturity, serving a large user base with reliable services.

Scanned

This is an earlier scan of thetrainline.com. View the latest report

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.

Select it in the checkout above.

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's market position as a leading independent ticketing platform is supported by its extensive network of over 270 train and bus operators across 45 countries. The business model focuses on online ticket sales and journey management, targeting travelers seeking convenient and cost-effective transportation options. The company maintains multiple physical offices in London, Paris, and Edinburgh, indicating a significant operational footprint. Social media presence and customer service channels are well established, enhancing customer engagement and trust. The relationship with subsidiaries such as Capitaine Train further strengthens its market reach. The platform's use of advanced analytics and marketing tools suggests a data-driven approach to growth and customer acquisition.

Security posture

The website employs strong security practices including HTTPS, security headers, and bot mitigation technologies. Monitoring and performance tools like New Relic are integrated for real-time security and performance insights. Despite these strengths, the lack of a dedicated security policy page and incident response contact information represents a gap in transparency and preparedness. No vulnerabilities or exposed sensitive data were detected in the analysis. The security score is high, but improvements in policy disclosure and incident response readiness are recommended to enhance overall security posture and compliance.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and compliance.
  2. Provide clear incident response contact channels such as security@ or abuse@ email addresses.
  3. Implement and publish a vulnerability disclosure program or security.txt file.
  4. Regularly review and audit third-party scripts and libraries for vulnerabilities.
  5. Enhance accessibility features to improve inclusivity and compliance with standards.

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, Journey planning, Travel information
Content quality
excellent
Branding
consistent

Technology

Stack
React, JavaScript, New Relic monitoring, Branch.io SDK, Google Tag Manager, DoubleClick Ads, Content Delivery Network (CDN)
Frameworks
React
Platforms
Web
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of Content Security Policy
  • Use of security event monitoring (New Relic)
  • Bot protection via DataDome

Analytics and tracking

Services
New Relic, Google Analytics (implied via GTM)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google DoubleClick
Tracking pixels
New Relic, Branch.io
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 rich content and professional design
  2. Strong presence of privacy and cookie policies with consent mechanisms
  3. Multiple verified physical addresses and customer service phone number provided
  4. Use of modern web technologies and performance monitoring tools
  5. No signs of WAF blocking or security challenge pages
  6. WHOIS data unavailable, which is unusual but not uncommon for large companies using privacy protection
  7. Social media and trustpilot links indicate active customer engagement
  8. No explicit security policy or incident response contact found
  9. No vulnerability disclosure or security.txt detected
Technical notes

Notes

The website is built on a modern React framework with extensive use of JavaScript and asynchronous loading for performance optimization. It leverages third-party services such as Branch.io for marketing, Google Tag Manager for analytics, and New Relic for monitoring. The site is mobile-optimized with responsive design and accessibility considerations. Performance is fast with preloading of critical assets and use of CDNs. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting details are not explicitly available but the use of global CDNs and monitoring indicates a robust infrastructure. Technical risks are minimal, with recommendations focusing on continuous security monitoring and policy 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. 88/100Low21 findingsView report
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