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Security report for jenprace.cz

Coweo Technologies s.r.o. · Other · Czech Republic

Low risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

82/100

Risk levelLow

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

Coweo Technologies s.r.o. operates JenPráce.cz, the second largest job and part-time work portal in the Czech Republic, providing daily updated job listings and recruitment advertising services. The company has been active since 2007 and offers additional resources such as career advice, salary calculators, and online video courses to support job seekers and employers. The website demonstrates a mature digital presence with modern technologies, fast performance, and mobile optimization. Security posture is strong with HTTPS, cookie consent, and ISO 27001 certification, although some security headers could be explicitly confirmed. Privacy policies are comprehensive and GDPR compliant. Overall, the site is professional, trustworthy, and well-positioned in its market niche.

Scanned

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

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

3 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 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 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 jenprace.cz

This scan found 14 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.

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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
75
Security headers
45
Email security
85
DNS health
85
Network security
100
GDPR outside view
100
Average
82

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

JenPráce.cz targets job seekers and employers primarily in the Czech Republic, leveraging a business model based on advertising and recruitment services. The portal's market position as the second largest in the country indicates significant competitive advantage and brand recognition. The company maintains a broad partnership ecosystem including related sites like JenFirmy.cz for employer reviews. Growth indicators include active social media channels with large followings and continuous service expansion such as AI-assisted job search. The business model is sustainable with diversified offerings including paid courses and premium employer services.

Security posture

The website exhibits a solid security maturity level with enforced HTTPS, use of security monitoring tools like Sentry, and a cookie consent mechanism aligned with GDPR. The presence of ISO 27001 certification further strengthens its security credibility. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of a public vulnerability disclosure policy or security.txt file and lack of explicit incident response contact details represent areas for improvement. Overall, the security posture is robust but could benefit from enhanced transparency and formalized incident response channels.

Recommendations

  1. Publish and verify comprehensive security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Implement a public vulnerability disclosure policy or security.txt file to facilitate responsible reporting.
  3. Provide clear incident response contact information on the website for security issues.
  4. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  5. Enhance transparency regarding data retention policies and user privacy practices.

Contact details published on the site

Addresses
Legal name
Coweo Technologies s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Coweo Technologies s.r.o.
Description
Jsme Coweo Technologies a provozujeme druhý největší inzertní portál pro vyhledávání práce a brigád v České republice – JenPráce.cz. Specializujeme se na prodej inzertních služeb v oblasti personalistiky. Na trhu nejsme žádní nováčci, zkušenosti s inzerováním pracovních nabídek sbíráme již od roku 2007 a neustále pracujeme na rozšiřování a zkvalitňování služeb.
Key services
job and part-time work listings, advertising services for employers, career advice and magazine, online video courses, salary and benefit calculators
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Google Analytics, Sentry, Select2, Cloudfront CDN, Google Identity Services
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism
  • Use of Sentry for error monitoring
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Cloudflare Insights
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Cloudflare Insights
Marketing tools
Sentry
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 no blocking detected
  2. Strong presence on social media with large follower counts
  3. Comprehensive privacy and cookie policies with consent mechanisms
  4. Use of modern web technologies and CDNs for performance
  5. No exposed sensitive data or obvious security vulnerabilities
  6. WHOIS data is unavailable, likely due to privacy protection
  7. Business information is clearly presented with legal company name and address
  8. Multiple useful tools and resources for job seekers and employers
  9. Good SEO and accessibility practices observed
Technical notes

Notes

The website uses a modern technology stack including Google Tag Manager, Sentry for error tracking, Select2 for enhanced UI elements, and Amazon S3 with Cloudfront CDN for hosting static assets, ensuring fast loading and scalability. The site is mobile-optimized with responsive design and accessibility considerations. SEO is well implemented with proper meta tags, Open Graph data, and structured JSON-LD for local business information. No CMS was explicitly detected, suggesting a custom or proprietary platform. The technical infrastructure supports a professional user experience with minimal technical debt and good performance metrics.
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. 80/100Low23 findingsView report
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