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Security report for tomaskorinek.cz

Tomáš Kořínek · Technology · Czech Republic

Medium risk. 7 critical or high findings in GDPR outside view, Email security and 2 other checks.

Security score

54/100

Risk levelMedium

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

Tomáš Kořínek is a seasoned web developer and consultant based in the Czech Republic, offering custom web development, website improvements, and consulting services with over 19 years of experience. The website showcases a professional portfolio of over 170 projects, emphasizing personalized service and technical expertise. The business operates as a small entity focused on delivering tailored web solutions to clients seeking quality and reliability. Technically, the website is well-built using modern web standards, responsive design, and optimized images, hosted by a reputable Czech provider. Security posture is solid with HTTPS and cookie consent mechanisms, though there is room for improvement in security headers and published policies. Overall, the site is trustworthy, professional, and user-friendly, with clear contact channels and a transparent business presence.

Scanned

NIS2 and GDPR posture

GDPR outside view
40/ 100 · High
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

7 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

    • High

      No Privacy Policy found

      GDPR requires a clear and accessible privacy policy

      What to do: Add a comprehensive privacy policy page and link to it prominently

  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 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 tomaskorinek.cz

This scan found 20 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
95
Security headers
35
Email security
60
DNS health
75
Network security
20
GDPR outside view
40
Average
54

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

The business is positioned as an experienced independent web developer with a strong portfolio and client base. Its competitive advantage lies in personalized service, long-term experience, and a comprehensive approach including SEO and social media integration. The revenue model is service-based, likely project and hourly consulting fees. Target customers are small to medium businesses and individuals needing professional web presence. The website reflects a mature digital presence with marketing tools like Google Tag Manager and cookie consent. Partnerships or subsidiaries are not evident, indicating a focused solo or small team operation.

Security posture

The website demonstrates a good security baseline with HTTPS enforced and a cookie consent mechanism that respects user privacy preferences. The contact form includes spam control features, reducing abuse risk. However, the absence of security headers such as Content-Security-Policy and lack of a published security or incident response policy are gaps. No vulnerabilities or exposed sensitive data were detected. GDPR compliance is partial due to missing privacy policy. Incident response readiness is unclear. Overall, the security posture is adequate for a small business but could be enhanced with formal policies and headers.

Recommendations

  1. Publish a comprehensive privacy policy to improve GDPR compliance and user trust.
  2. Implement and configure security headers like Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Add a visible security policy or incident response contact to demonstrate preparedness.
  4. Regularly review and update third-party scripts and tracking tools to mitigate vulnerabilities.
  5. Consider adding terms of service to clarify user and business obligations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tomáš Kořínek
Description
Tomáš Kořínek offers professional web development services with over 19 years of experience, providing personalized and high-quality web solutions including new websites, website improvements, and consultations.
Key services
Custom website development, Website improvements and SEO optimization, Web consulting and workshops
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Google Tag Manager, Cookie Consent library, WebP images, Responsive design
Frameworks
Bootstrap (implied by class names and grid system)
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced (implied by og:url and scripts loaded over HTTPS)
  • Cookie consent with granular control
  • No exposed sensitive data in HTML
  • Contact form uses POST and has spam control mechanisms

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Content is comprehensive and clearly targeted at clients seeking web development services.
  3. Contact information is transparent and includes multiple channels.
  4. Cookie consent mechanism is implemented with granular user control.
  5. No privacy policy or terms of service pages found, which is a compliance gap.
  6. No explicit security policy or incident response information provided.
  7. WHOIS data supports legitimacy and long-term operation.
  8. No signs of malicious or suspicious activity detected.
Technical notes

Notes

The website uses a modern tech stack including HTML5, CSS3, JavaScript, and Bootstrap framework for responsive design. Images are optimized with WebP format support. Google Tag Manager is used for analytics and marketing tracking. Hosting is provided by REG-WEDOS, a Czech registrar and hosting provider, consistent with the domain's WHOIS data. Performance is fast with good mobile optimization and accessibility features. No CMS detected, indicating custom development which allows for tailored security and performance optimizations. Technical risks are low but could be further mitigated by adding security headers and formal 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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