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Security report for busem.cz

ČSAD Autobusy České Budějovice a.s. · Transportation · Czech Republic

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

Security score

42/100

Risk levelHigh

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

ČSAD Autobusy České Budějovice a.s. operates as a regional public transportation provider in the South Bohemian Region of the Czech Republic, offering regular and irregular bus services including municipal and suburban transport. The company maintains a professional web presence with clear navigation, multiple service offerings, and a focus on customer engagement through contact forms and social media. Technically, the website employs modern frontend technologies such as Bootstrap and jQuery, integrates Google Analytics for visitor tracking, and provides a GDPR-compliant cookie consent mechanism. Security posture is adequate with HTTPS enforced and consent-based data collection, though the absence of security headers and WHOIS data transparency slightly reduce trust levels. Overall, the site is well-structured, mobile-optimized, and serves its target audience effectively.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • Critical

      Critical Service Exposed: MySQL

      Port 3306 (MySQL) is publicly accessible - MySQL - Database server

      What to do: Immediately restrict access to MySQL using firewall or VPN

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

  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';…

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Keep watching busem.cz

This scan found 26 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
62
Security headers
20
Email security
85
DNS health
60
Network security
0
GDPR outside view
25
Average
42

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 · found on this site
  • 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

The company holds a solid position as a regional transportation operator, targeting commuters and travelers within the South Bohemian Region. Its business model revolves around passenger bus services, including scheduled lines, charter services, and local municipal transport. The presence of partner domains like idos.cz for timetable integration and amsbus.cz for ticket reservations indicates a collaborative ecosystem enhancing service delivery. The website content and structure reflect a medium-sized enterprise with consistent branding and trust signals such as GDPR compliance and social media engagement. No direct financial or founding year data is available, but the company appears established and focused on regional transport solutions.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enabled and GDPR-compliant consent mechanisms for data collection. Multiple contact forms require explicit user consent for personal data processing, indicating awareness of privacy regulations. However, the lack of visible security headers such as Content-Security-Policy or X-Frame-Options and absence of incident response or vulnerability disclosure information suggest areas for improvement. The missing WHOIS data reduces transparency and trustworthiness from a domain registration perspective. No critical vulnerabilities or exposed sensitive data were detected in the provided content.

Recommendations

  1. Implement comprehensive security headers (CSP, X-Frame-Options, X-XSS-Protection) to enhance protection against common web attacks.
  2. Publish explicit security and privacy policies detailing data protection and incident response procedures.
  3. Provide clear incident response contact channels to improve transparency and readiness.
  4. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  5. Investigate and resolve WHOIS data availability to improve domain registration transparency and trust.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ČSAD Autobusy České Budějovice a.s.
Description
ČSAD Autobusy České Budějovice a.s., provozovatel osobní autobusové dopravy pravidelné linkové i nepravidelné zájezdové, MHD a příměstské autobusové dopravy ve vybraných městech Jihočeského kraje a jejich okolí.
Key services
Regular bus lines, Irregular charter bus services, Municipal public transport (MHD), Suburban bus transport, Bus ticket reservation, Bus service and maintenance
Content quality
good
Branding
consistent

Technology

Stack
Bootstrap CSS, jQuery, jQuery UI, Google Analytics, Custom JavaScript, FontAwesome icons
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner
  • GDPR compliance modal
  • Consent required on forms

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
basic

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 forms.
  2. Strong focus on GDPR compliance and user consent.
  3. Multiple contact forms with detailed fields and consent checkboxes.
  4. Social media presence on Facebook and Twitter.
  5. No visible security headers detected in provided data.
  6. No WHOIS data available, which reduces trust score.
  7. No explicit privacy or security policy pages beyond GDPR page.
  8. No incident response or vulnerability disclosure information found.
  9. Website uses modern frontend technologies and is mobile responsive.
Technical notes

Notes

The website uses a modern and widely supported technology stack including Bootstrap for responsive design, jQuery and jQuery UI for interactivity, and Google Analytics for visitor tracking. The site is mobile-optimized with good navigation clarity and professional design quality. Performance is moderate, with no significant technical debt visible in the HTML content. The use of cookie consent scripts and GDPR modals indicates attention to privacy compliance. However, the absence of CMS identification and hosting provider details limits deeper infrastructure analysis. Opportunities exist to enhance accessibility and security through additional headers and policies.
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

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