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Security report for c-ctrip.com

携程旅行网 (Ctrip) · Transportation · China

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

70/100

Risk levelMedium

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

Ctrip (携程旅行网) is a leading Chinese online travel service provider offering a comprehensive range of travel-related services including hotel bookings, flight reservations, train tickets, car rentals, and vacation packages. The platform serves over 90 million members and is positioned as a major player in the Chinese travel market with a broad service ecosystem. The website demonstrates a mature digital infrastructure with modern JavaScript frameworks, integration of multiple analytics and marketing tools, and mobile-friendly design. Security posture is generally strong with HTTPS enforcement and use of service workers, though explicit security headers and privacy policies are not clearly presented in the analyzed content. The absence of WHOIS data for the domain is unusual but does not detract significantly from the overall trustworthiness given the extensive branding and service presence. Strategic recommendations include enhancing privacy compliance transparency, adding vulnerability disclosure mechanisms, and improving security header implementations to further strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 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

5 findings rated critical or high. Fix these first.

  1. 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 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';…
  2. GDPR outside view

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

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

  3. 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 SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

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

Keep watching c-ctrip.com

This scan found 21 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
70
Security headers
25
Email security
85
DNS health
85
Network security
100
GDPR outside view
53
Average
70

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 c-ctrip.com, from OffSeq Breach.

Total records
175
Employees
0
Customers
144
Third parties
31
Weak passwords
22%

6 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 c-ctrip.com.

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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

Ctrip operates as an essential enterprise in the transportation and hospitality sectors, targeting Chinese and international travelers. Its business model revolves around online travel agency services, leveraging a large user base and diversified offerings such as group tours, visa services, and insurance. The company benefits from a strong brand presence and a wide partner ecosystem including flight, train, and car rental services. Growth indicators include extensive marketing and retargeting efforts via major ad networks and analytics platforms. The platform's comprehensive service portfolio and user engagement position it competitively in the Chinese travel market.

Security posture

The website enforces HTTPS and employs modern web technologies including service workers, which enhance security and performance. However, explicit security headers such as Content Security Policy (CSP), HSTS, and X-Frame-Options were not detected in the provided HTML snapshot, representing an area for improvement. No exposed sensitive data or known vulnerabilities were observed. The lack of a visible security policy or incident response contact information limits transparency. Privacy compliance indicators are minimal, with no clear cookie consent mechanisms or GDPR-related disclosures found. Overall, the security posture is solid but could be enhanced by adopting best practices in header configuration and privacy transparency.

Recommendations

  1. Implement and publish comprehensive privacy and cookie policies with user consent mechanisms to improve compliance and user trust.
  2. Add and enforce security headers such as CSP, HSTS, and X-Frame-Options to mitigate common web vulnerabilities.
  3. Establish a publicly accessible vulnerability disclosure or security.txt page to facilitate responsible reporting.
  4. Enhance accessibility features to meet recognized standards and improve user experience for all users.
  5. Increase visibility of contact information for security incidents and data protection inquiries to strengthen trust and compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
携程旅行网 (Ctrip)
Description
中国领先的在线旅行服务公司,向超过9000万会员提供酒店预订、酒店点评及特价酒店查询、机票预订、飞机票查询、时刻表、票价查询、航班查询、度假预订、商旅管理等全方位旅行服务。
Key services
酒店预订, 机票预订, 旅游度假, 商旅管理, 火车票, 汽车票, 船票, 租车, 签证, 保险
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, React (implied by data-reactroot attributes), Google Tag Manager, Baidu Analytics, Google Analytics, Service Workers, WebP image format support
Frameworks
React
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Use of Service Workers with fallback
  • Content Security Policy not explicitly detected in HTML

Analytics and tracking

Services
Google Analytics, Baidu Analytics
Tracking level
extensive
Privacy practices
basic

Advertising

Ad networks
Baidu Ads, Google Ads
Tracking pixels
Baidu Analytics
Marketing tools
Baidu Marketing Scripts
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 navigation.
  2. No explicit privacy or cookie policy found in the provided HTML snapshot.
  3. WHOIS data is missing or unavailable, which is unusual for a large enterprise domain.
  4. Website uses multiple third-party analytics and marketing scripts.
  5. No security.txt or vulnerability disclosure information detected.
  6. No explicit contact emails or phone numbers found in the HTML snapshot.
  7. Website is primarily in Chinese language targeting Chinese travel consumers.
  8. Strong branding and consistent UI/UX design observed.
  9. No adult or NSFW content detected.
  10. HTTPS is enforced with modern security practices.
Technical notes

Notes

The website uses a modern JavaScript stack with React components, asynchronous script loading, and service workers for offline capabilities and performance optimization. It integrates multiple third-party analytics and marketing tools including Google Analytics, Baidu Analytics, and Google Tag Manager. The site is mobile-optimized with responsive design elements and supports modern image formats like WebP. Performance is moderate with room for improvement in loading speed and accessibility compliance. The absence of a detected CMS suggests a custom or proprietary platform. Hosting details are not explicitly available from 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. 70/100Medium30 findingsView report
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