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Security report for chc.cz

Channel Crossings · Education · Czech Republic

Medium risk. 5 critical or high findings in Security headers, SSL/TLS and 1 other check.

Security score

60/100

Risk levelMedium

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

Channel Crossings is a Czech-based language and educational agency specializing in study abroad programs, summer language stays, soft skills training, language courses, and certified translations including court translations. The website is professionally designed, targeting students and individuals seeking language and educational services primarily in the Czech Republic. The business operates under Jagu s.r.o., indicating a small-sized agency with a focused niche in education. Technically, the website employs a modern tech stack including jQuery, Font Awesome, Google Tag Manager, Microsoft Clarity, and Cookiebot for cookie consent management. The CMS appears to be a custom or proprietary Jagu CMS. The site is mobile optimized with good SEO practices and moderate performance. Security-wise, HTTPS is enforced and cookie consent is implemented, but some security headers and policies could be improved. The security posture is solid with no visible vulnerabilities or exposed sensitive data. However, the absence of a privacy policy and terms of service pages, as well as lack of WHOIS data, slightly reduce trust and compliance scores. No incident response or vulnerability disclosure information is present. Overall, the site is safe, professional, and trustworthy for its intended audience. Strategic recommendations include publishing comprehensive privacy and terms policies, enhancing security headers, and providing clear contact information for data protection and incident response to improve compliance and trust.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 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

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 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';…
  2. 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
  3. Network security

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

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • 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

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

Keep watching chc.cz

This scan found 22 issues across 5 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
62
Security headers
25
Email security
75
DNS health
80
Network security
20
GDPR outside view
100
Average
60

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 chc.cz, from OffSeq Breach.

Total records
23
Employees
0
Customers
10
Third parties
13
Weak passwords
22%

3 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 chc.cz.

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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

Channel Crossings holds a niche position in the Czech education sector, focusing on language and study abroad services. Its competitive advantage lies in offering a broad range of language-related services including soft skills and certified translations. The business model is service-oriented, targeting students and professionals seeking language education and translation services. Revenue streams likely include course fees, translation services, and study abroad program commissions. The partnership with Jagu s.r.o. suggests a small but established operational base. Growth indicators include the use of modern digital marketing and analytics tools. The absence of extensive partner or subsidiary domains indicates a focused operational scope.

Security posture

The website demonstrates a moderate to good security maturity level with HTTPS enforced and cookie consent mechanisms in place. No critical vulnerabilities or exposed sensitive data were detected in the HTML content. However, the lack of published security policies, incident response contacts, and vulnerability disclosure mechanisms indicates room for improvement in compliance and transparency. The site uses multiple tracking and analytics services, which require clear privacy disclosures to meet GDPR and other regulations. Overall, the security culture appears basic but functional, suitable for a small educational agency.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service to improve legal compliance and user trust.
  2. Implement and document security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Add clear contact information for data protection officer and incident response to enhance transparency and readiness.
  4. Review and minimize tracking scripts to align with privacy best practices and GDPR requirements.
  5. Consider obtaining relevant certifications or trust badges to strengthen market position and credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Channel Crossings
Description
Channel Crossings nabízí Studium v zahraničí, Letní jazykové pobyty, Soft skills, jazykové kurzy, překlady a tlumočení a elektronicky ověřené soudní překlady.
Key services
Study abroad programs, Summer language stays, Soft skills training, Language courses, Translations and interpreting, Certified electronic court translations
Content quality
good
Branding
consistent

Technology

Stack
jQuery, Font Awesome, Line Icons, Normalize.css, Google Tag Manager, Microsoft Clarity, Cookiebot, Zopim (Zendesk Chat), Facebook Pixel, Google Analytics
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • No exposed sensitive data found in HTML

Analytics and tracking

Services
Google Analytics, Microsoft Clarity
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
Microsoft Clarity, Facebook Pixel
Marketing tools
Cookiebot
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
good
Navigation
good
Professionalism
good
Trustworthiness
moderate

Key observations

  1. WHOIS data unavailable or privacy protected
  2. Website is in Czech language targeting Czech audience
  3. No explicit contact emails or phone numbers found in HTML snippet
  4. Cookie consent mechanism implemented via Cookiebot
  5. Multiple analytics and tracking scripts present
  6. No privacy policy or terms of service pages clearly identified
  7. No security.txt or vulnerability disclosure information found
  8. No data protection officer contact found
  9. Website uses HTTPS and modern frontend libraries
  10. No signs of malware or phishing detected
Technical notes

Notes

The website uses a combination of standard web technologies including jQuery, Font Awesome, and Normalize.css, integrated with marketing and analytics tools like Google Tag Manager, Microsoft Clarity, and Facebook Pixel. The CMS is likely a custom Jagu CMS platform. The site is mobile optimized and includes accessibility features, though these could be enhanced. Performance is moderate, with combined CSS files and asynchronous script loading. No major technical debt or deprecated libraries were detected. Hosting provider details are not evident from the HTML content. Opportunities exist to modernize frontend frameworks and improve accessibility compliance.
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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