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Security report for navstevalekare.cz

Navstevalekare.cz s.r.o. · Healthcare · Czech Republic

Medium risk. 5 critical or high findings in Security headers, Email security and 2 other checks.

Security score

65/100

Risk levelMedium

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

NávštěvaLékaře.cz is a prominent Czech online healthcare portal specializing in doctor search and online appointment booking services. It positions itself as the largest platform of its kind in the Czech Republic, serving both patients and healthcare providers with a comprehensive directory of doctors, clinics, pharmacies, and emergency services. The portal boasts significant user engagement metrics including over 4 million patient bookings and a large network of cooperating doctors, underscoring its market leadership and trustworthiness in the healthcare sector. Technically, the website employs a modern technology stack including JavaScript frameworks, Google Tag Manager, Microsoft Clarity, and Facebook SDK for analytics and marketing. It uses a proprietary CMS (MKL.CMS) and integrates autocomplete and search enhancement tools to improve user experience. The site is mobile-optimized, accessible, and SEO-friendly, reflecting a mature digital infrastructure. From a security perspective, the site enforces HTTPS and implements cookie consent mechanisms, but lacks explicit security headers and publicly available security policies or incident response contacts. The absence of WHOIS domain registration data is a notable gap, reducing domain trustworthiness despite the professional appearance and content quality of the site. Overall, NávštěvaLékaře.cz presents a reliable and user-friendly healthcare service platform with strong market presence. However, it should improve transparency in domain registration and security policies to enhance trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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 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. 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.

    • High

      No DMARC record found

      DMARC provides email authentication and reporting

      What to do: Add DMARC record: "v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com"

  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

  4. 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 navstevalekare.cz

This scan found 16 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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Recommended

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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
80
DNS health
85
Network security
20
GDPR outside view
95
Average
65

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 navstevalekare.cz, from OffSeq Breach.

Total records
38
Employees
0
Customers
38
Third parties
0
Weak passwords
8%

1 subdomain affected

See the 10 newest leaked credentials

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Technical appendix

Business context, site observations and technical notes gathered during the scan, and the standards behind each reference.

Business context

Business profile

The portal operates in the healthcare sector, targeting patients seeking medical appointments and healthcare providers wishing to manage patient bookings online. Its business model revolves around providing a centralized, easy-to-use platform for healthcare service discovery and scheduling, likely monetized through partnerships, advertising, and premium services for doctors. The site’s extensive network and high user engagement indicate a strong competitive position in the Czech healthcare digital market. Partnerships such as membership in HealthPro Group further strengthen its ecosystem and credibility. The absence of direct contact details on the main site suggests a focus on digital self-service and possibly controlled communication channels.

Security posture

The website demonstrates a moderate to good security posture with mandatory HTTPS encryption and cookie consent compliance. However, it lacks several recommended HTTP security headers (CSP, X-Frame-Options, X-Content-Type-Options) and does not publicly disclose security policies or incident response procedures. No vulnerability disclosures or security.txt files were found, which could hinder coordinated vulnerability management. The use of multiple third-party scripts introduces potential risk vectors that require ongoing monitoring. The missing WHOIS data is a significant concern for domain legitimacy and trust. Overall, while no critical vulnerabilities were detected, improvements in transparency and security hardening are advisable.

Recommendations

  1. Obtain and publish complete WHOIS domain registration data to improve domain trust and transparency.
  2. Implement and verify HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Publish a clear security policy and incident response contact information on the website.
  4. Establish a vulnerability disclosure program or security.txt file to facilitate responsible reporting.
  5. Provide clear company contact information including verified emails and phone numbers to enhance business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Navstevalekare.cz s.r.o.
Description
Přehledný, rozsáhlý a spolehlivý seznam lékařů, zdravotnických zařízení, lékáren a pohotovostí v České republice.
Key services
Doctor search, Online appointment booking, Healthcare facility directory, Patient and doctor login portals
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, jQuery, Google Tag Manager, Google Ads, Google Adsense, Microsoft Clarity, Facebook SDK, Selectize.js, Luigisbox autocomplete
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Secure forms with autocomplete disabled on sensitive inputs
  • Cookie consent banner implemented

Analytics and tracking

Services
Microsoft Clarity, Google Analytics (via GTM)
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Adsense, Google Ads, Microsoft Bing Ads
Tracking pixels
Microsoft Clarity, Facebook Pixel (via Facebook SDK)
Marketing tools
Facebook SDK, Luigisbox autocomplete
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 healthcare appointment booking portal in Czech Republic.
  2. No WHOIS data available, which is unusual and reduces domain trust.
  3. Strong privacy and cookie policies present with consent mechanisms.
  4. No direct contact emails or phone numbers found on main page.
  5. Multiple third-party analytics and advertising scripts used.
  6. Good SEO and accessibility practices observed.
  7. No security policy or incident response info publicly available.
  8. No vulnerability disclosure or security.txt found.
  9. Website content is safe and suitable for general audiences.
Technical notes

Notes

The website is built on a proprietary CMS (MKL.CMS) and leverages modern JavaScript libraries and frameworks including jQuery and Selectize.js for enhanced UI components. It integrates multiple analytics and marketing tools such as Google Tag Manager, Microsoft Clarity, Google Ads, and Facebook SDK, indicating a mature digital marketing strategy. The site is mobile-responsive and optimized for accessibility and SEO, with well-structured metadata and JSON-LD structured data for enhanced search engine understanding. Performance is moderate, with some reliance on third-party scripts which may impact load times. Hosting provider details are not explicitly identified from the content.
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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