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Security report for tomaskorinek.com

Tomáš Kořínek · Technology · Czech Republic

Medium risk. 6 critical or high findings in Security headers, GDPR outside view and 2 other checks.

Security score

55/100

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 professional website creation, upgrades, and consultancy services. With over 19 years of experience and a portfolio exceeding 170 projects, the business targets individuals and companies seeking tailored web solutions. The website is well designed, mobile-optimized, and provides clear navigation and comprehensive service descriptions. Technically, the site uses modern web standards, responsive design, and integrates Google Tag Manager for analytics. Hosting is provided by a reputable Czech registrar, WEDOS Internet, a.s., with a domain registered since 2012, aligning with the business's claimed experience. Security posture is solid with HTTPS enforced and cookie consent implemented, though some security headers and DNSSEC are missing. Privacy compliance is basic due to the absence of a privacy policy and terms of service pages. Overall, the site projects a high level of professionalism and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
65/ 100 · Medium
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

6 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. GDPR outside view

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

    • 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook, LinkedIn

      What to do: Document all third-party data sharing in your privacy policy

  3. 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

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

Keep watching tomaskorinek.com

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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
72
Security headers
35
Email security
70
DNS health
65
Network security
20
GDPR outside view
65
Average
55

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 operates as a small, independent web development consultancy focusing on custom websites, upgrades, and IT consultancy. Its competitive advantage lies in extensive experience, personalized service, and a strong portfolio. Revenue likely derives from project-based fees and consultancy sessions. The target market includes small to medium businesses and individuals needing professional web presence. The website supports business credibility with clear contact details and social media presence. The partnership ecosystem includes a Czech language domain variant. Growth indicators include a comprehensive portfolio and active online presence.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and a cookie consent mechanism that respects user privacy preferences. However, the absence of DNSSEC and certain security headers such as Content-Security-Policy and X-Frame-Options represents areas for improvement. No vulnerabilities or exposed sensitive data were detected. The contact form includes spam control measures. Incident response and security policy documentation are not present, which could be enhanced to improve security culture and compliance. GDPR compliance is partial due to missing privacy policy documentation.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service to improve legal compliance and user trust.
  2. Enable DNSSEC on the domain to enhance DNS security and prevent spoofing.
  3. Implement additional HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  4. Consider adding a security policy and vulnerability disclosure or security.txt file to improve transparency and incident response readiness.
  5. Regularly review and update cookie consent settings and analytics configurations to maintain privacy compliance.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tomáš Kořínek
Description
Professional web developer offering website creation, upgrades, and consultancy with over 19 years of experience.
Key services
Brand new websites, Website upgrades, Consultancy
Content quality
excellent
Branding
consistent

Technology

Stack
HTML5, CSS3, JavaScript, Google Tag Manager, Cookie Consent library, WebP images, Responsive design
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with granular control
  • No exposed sensitive data in HTML
  • Secure contact form with spam control

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
good

Site quality

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

Key observations

  1. Website is a professional portfolio and service site for an experienced web developer.
  2. Content is well structured, clear, and comprehensive for the target audience.
  3. Cookie consent is implemented with granular user controls.
  4. No explicit privacy policy or terms of service pages found.
  5. Contact information is complete and clearly presented.
  6. No security.txt or vulnerability disclosure found.
  7. No DNSSEC enabled on domain.
  8. Use of Google Tag Manager for analytics and tracking.
  9. No signs of WAF or content blocking.
  10. No adult or questionable content detected.
Technical notes

Notes

The website is custom-built without a CMS, using modern HTML5, CSS3, and JavaScript technologies. It employs responsive design techniques and serves optimized images including WebP formats. Google Tag Manager is used for analytics and tracking, integrated with a cookie consent mechanism that allows granular user control. Hosting is provided by WEDOS Internet, a reputable Czech provider. Performance is fast with good mobile optimization and accessibility. The site lacks some advanced security headers and DNSSEC but otherwise follows good technical practices. There is no evidence of technical debt or outdated libraries.
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. 55/100Medium32 findingsView report
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