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Security report for znamylekar.cz

ZnamyLekar · Healthcare · Czech Republic

Medium risk. 5 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

73/100

Risk levelMedium

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

ZnamyLekar.cz is a leading Czech online platform for finding doctors, reading reviews, and booking medical appointments. It serves a large user base with over 45,000 doctors listed, providing a comprehensive healthcare service marketplace. The platform is part of the Docplanner group, a recognized international healthcare technology company. Technically, the website employs modern web technologies including Algolia for search, Google Analytics and Tag Manager for tracking, and OneTrust for cookie consent, ensuring GDPR compliance. The site is well-structured with SEO-friendly metadata and structured data to enhance discoverability. Security-wise, the site enforces HTTPS, uses standard security headers, and integrates reCAPTCHA for form protection, reflecting a mature security posture. However, the absence of WHOIS data limits domain registration trust analysis. Overall, the platform presents a professional, trustworthy, and user-friendly service with strong privacy and security practices.

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

5 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

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics, Facebook

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

  2. 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"

  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 znamylekar.cz

This scan found 18 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
77
Security headers
55
Email security
82
DNS health
85
Network security
100
GDPR outside view
40
Average
73

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 znamylekar.cz, from OffSeq Breach.

Total records
342
Employees
0
Customers
342
Third parties
0
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 znamylekar.cz.

Select it in the checkout above.

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

ZnamyLekar.cz operates in the healthcare sector as an essential online service connecting patients with medical professionals. Its business model revolves around providing appointment booking, doctor ratings, and online consultations, targeting Czech residents seeking healthcare services. The platform benefits from its association with Docplanner, enhancing its market position and credibility. The website integrates marketing and analytics tools to optimize user engagement and service delivery. While direct contact information is not prominently displayed, the platform maintains transparency through privacy and cookie policies. The ecosystem includes multiple subdomains supporting patient requests, search, and booking management, indicating a scalable and modular architecture.

Security posture

The website demonstrates a solid security posture with enforced HTTPS, comprehensive security headers, and GDPR-compliant cookie consent mechanisms. Use of reCAPTCHA and moderation gates for user-generated content indicates proactive measures against abuse and spam. No exposed sensitive data or vulnerable libraries were detected in the analysis. However, the lack of a publicly available security policy or incident response contact reduces transparency in security governance. The absence of a security.txt file or vulnerability disclosure program is a potential area for improvement. Overall, the platform balances usability and security effectively, suitable for handling sensitive healthcare data.

Recommendations

  1. Publish a dedicated security policy and incident response contact information to enhance transparency.
  2. Implement a security.txt file to facilitate responsible vulnerability disclosure.
  3. Regularly audit third-party scripts and dependencies to mitigate supply chain risks.
  4. Enhance accessibility features to meet higher compliance standards.
  5. Consider displaying verified company contact information to improve business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
ZnamyLekar
Description
Snadno vyhledejte lékaře a domluvte si návštěvu přes internet. Pročtěte si názory o doktorovi a přidejte vlastní. Je u nás více než 45 000 doktorů.
Key services
Doctor search, Online appointment booking, Doctor reviews and ratings, Online consultation
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, jQuery, Google Tag Manager, Google Analytics, Algolia Search, OneTrust Cookie Consent, Google Identity Services
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented
  • No exposed sensitive data detected
  • Use of reCAPTCHA site key

Analytics and tracking

Services
Google Analytics, Google Tag Manager, HubSpot
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
OneTrust Cookie Consent
Marketing tools
HubSpot
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenges.
  2. WHOIS data is unavailable, limiting domain registration trust analysis.
  3. Site uses modern tracking and consent technologies compliant with GDPR.
  4. No direct company contact emails or phone numbers found on homepage.
  5. Strong use of structured data and SEO best practices.
  6. No visible security vulnerabilities or exposed sensitive data.
  7. Content is relevant, professional, and targeted to Czech healthcare consumers.
Technical notes

Notes

The website uses a modern technology stack including JavaScript frameworks, Algolia search, Google Analytics, and OneTrust for consent management. It employs structured data (JSON-LD) for SEO and integrates social media links for branding. The site is mobile-optimized with responsive design and preloading of critical assets for performance. Hosting details are not explicitly identified, but the use of AWS S3 and Google services suggests a cloud-based infrastructure. Performance is moderate with room for optimization in loading times and accessibility. The technical implementation supports scalability and user engagement but could benefit from enhanced CMS or framework identification and improved 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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