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Security report for idos.cz

CHAPS spol. s r.o. · Transportation · Czech Republic

High risk. 11 critical or high findings in GDPR outside view, Email security and 3 other checks.

Security score

45/100

Risk levelHigh

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

IDOS.cz is a well-established Czech online platform specializing in public transportation timetable searches and ticketing services. Operated by CHAPS spol. s r.o., the website offers comprehensive search capabilities for trains, buses, urban public transport (MHD), and flights, including real-time vehicle location tracking. The platform targets general travelers within the Czech Republic and holds a leading market position in its sector. The business model revolves around providing free timetable information combined with integrated ticket purchasing options, enhancing user convenience and service integration. Technically, the website employs a modern JavaScript-based stack with integrations such as Google Analytics, Facebook SDK, Leaflet.js for mapping, and a consent management platform (Didomi) to ensure GDPR compliance. Hosting is provided by Webglobe, and the site demonstrates good mobile optimization and SEO practices. Performance is moderate, with room for improvements in accessibility and explicit security headers. From a security perspective, the site enforces HTTPS and uses consent management for privacy compliance. No critical vulnerabilities or exposed sensitive data were detected. However, explicit security policies and incident response contacts are not publicly available, which could be improved to enhance trust and readiness. Advertising and tracking are transparently managed with user consent, leveraging reputable ad networks and analytics services. Overall, IDOS.cz presents a professional, trustworthy, and user-friendly service with strong business credibility and compliance posture. Strategic enhancements in security policy transparency and technical security headers would further strengthen its security posture and user trust.

Scanned

This is an earlier scan of idos.cz. View the latest report

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
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

11 findings rated critical or high. Fix these first.

  1. GDPR outside view

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

    • Critical

      EU business without adequate privacy measures

      EU businesses are subject to strict GDPR requirements

      What to do: Implement comprehensive GDPR compliance including privacy policy, cookie consent, and data protection measures

  2. 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

  3. 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';…

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

Keep watching idos.cz

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.

Daily monitoring

Recommended

€25per month

  • 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
20
Email security
60
DNS health
75
Network security
20
GDPR outside view
10
Average
45

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

Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

IDOS.cz operates as a critical infrastructure service in the Czech transportation sector, providing essential timetable and ticketing services. Its competitive advantage lies in comprehensive coverage of multiple transport modes and real-time data integration. Revenue likely stems from ticket sales commissions and advertising partnerships. The platform serves a broad customer base including daily commuters, tourists, and occasional travelers. The presence of a dedicated helpdesk and integration with multiple ad and analytics partners indicates a mature operational ecosystem. Growth potential exists in expanding digital services and enhancing user personalization while maintaining compliance with evolving data protection regulations.

Security posture

The website demonstrates a mature security posture with enforced HTTPS, use of a consent management platform, and secure form implementations. No critical vulnerabilities or sensitive data exposures were identified. However, the absence of a publicly stated security policy and incident response contacts represents a compliance gap. The integration of multiple third-party scripts necessitates ongoing vulnerability management. Security headers such as X-Frame-Options and X-Content-Type-Options are not explicitly detected and should be implemented to mitigate clickjacking and MIME sniffing risks. Overall, the security maturity is good but can be improved with enhanced transparency and technical controls.

Recommendations

  1. Publish a clear security policy and incident response contact information on the website.
  2. Implement and verify security headers including X-Frame-Options and X-Content-Type-Options.
  3. Conduct regular audits of third-party scripts and dependencies to identify and mitigate vulnerabilities.
  4. Enhance accessibility features to improve compliance and user experience for all users.
  5. Maintain transparent and user-friendly privacy and cookie management aligned with GDPR and other regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
CHAPS spol. s r.o.
Description
IDOS umožňuje vyhledání spojení v jízdních řádech vlaků, autobusů, MHD a letadel. Vyhledává spojení různých dopravců a zobrazuje aktuální polohy vlaků a autobusů. Pro vyhledané spojení lze zakoupit jízdenky přímo v aplikaci IDOS.
Key services
Public transport timetable search, Real-time vehicle location, Ticket purchase
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, jQuery UI Autocomplete, Google Tag Manager, Google Analytics, Facebook SDK, Leaflet.js, Mapy.cz API, Prebid.js, Didomi Consent SDK
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management platform (Didomi)
  • No exposed sensitive data in HTML
  • Secure forms with validation

Analytics and tracking

Services
Google Analytics, Gemius
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Gemius, Adform, CPEX
Tracking pixels
Gemius, Facebook Pixel
Marketing tools
Didomi Consent Management
Transparency
good

Site quality

Design
good
User experience
good
Content relevance
excellent
Navigation
good
Professionalism
good
Trustworthiness
high

Key observations

  1. Website is a mature, well-established Czech public transport timetable and ticketing platform.
  2. Comprehensive cookie consent and privacy mechanisms are implemented.
  3. Multiple external analytics and advertising services are integrated with user consent.
  4. No signs of blocking or WAF challenges; content fully accessible.
  5. WHOIS data supports legitimacy and long-term operation.
  6. No explicit security policy or incident response information found on site.
  7. Forms include autocomplete and validation, enhancing user experience and security.
Technical notes

Notes

IDOS.cz uses a modern JavaScript-heavy front-end with integrations of mapping APIs (Leaflet.js, Mapy.cz), analytics (Google Analytics, Gemius), and advertising frameworks (Adform, CPEX). The site is hosted by Webglobe, a reputable provider, and employs a consent management platform (Didomi) for privacy compliance. Performance is moderate, with potential improvements in load optimization and accessibility. The site lacks a detected CMS, suggesting a custom or proprietary platform. Technical risks include reliance on multiple third-party scripts which require vigilant security management. Overall, the infrastructure supports a robust user experience but could benefit from modernization in accessibility and security header implementation.
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. 45/100High33 findingsView report
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