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Security report for euc.cz

EUC · Healthcare · Czech Republic

Medium risk. 4 critical or high findings in Security headers and SSL/TLS.

Security score

75/100

Risk levelMedium

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

EUC.cz is the largest outpatient healthcare provider in the Czech Republic, operating clinics, mamocenters, pharmacies, and laboratories serving approximately one million patients annually. The website presents a professional and consistent brand image targeting Czech healthcare consumers. Technically, the site employs modern JavaScript libraries, Google Tag Manager, Facebook Pixel, and Cookiebot for GDPR-compliant cookie consent management. The site is mobile optimized with good SEO and accessibility basics. Security posture is solid with HTTPS and cookie consent denying tracking by default, though security headers and explicit incident response policies are absent. No contact emails or phone numbers are directly visible, and no terms of service page was found. Overall, the site is trustworthy and well-positioned in its market segment.

Scanned

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

4 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 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. 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 euc.cz

This scan found 19 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
67
Security headers
15
Email security
85
DNS health
85
Network security
100
GDPR outside view
100
Average
75

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 euc.cz, from OffSeq Breach.

Total records
1,099
Employees
1
Customers
1,093
Third parties
5
Weak passwords
9%

Latest record dated 2025-04-15 · 8 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 euc.cz.

Select it in the checkout above.

Masked preview

  • –login.euc.cz2025-04-15

Breach keeps ingesting new leaks, so these numbers can grow between scans.

Open in Breach(opens in a new tab)Monitor on Breach(opens in a new tab)

Technical appendix

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

Business context

Business profile

EUC operates in the healthcare sector as an essential entity providing outpatient medical services. Its market position as the largest provider in the Czech Republic indicates strong competitive advantage and scale. The business model focuses on direct patient care through multiple service lines including clinics and pharmacies. The website links to partner and subsidiary domains indicating a broader ecosystem. The company targets patients and healthcare consumers primarily within the Czech Republic. The digital presence is mature with integrated marketing and analytics tools supporting business growth and customer engagement.

Security posture

The website demonstrates a good security baseline with enforced HTTPS and a comprehensive cookie consent mechanism that denies tracking by default until user consent. However, the absence of explicit security headers such as Content-Security-Policy and lack of published security or incident response policies reduce the overall security maturity. No vulnerabilities or exposed sensitive data were detected in the HTML content. The site would benefit from publishing clear security policies and contact channels for incident reporting to enhance trust and compliance.

Recommendations

  1. Implement and publish security headers including Content-Security-Policy, X-Frame-Options, and X-XSS-Protection.
  2. Add a dedicated security or incident response page with contact information such as security@ or abuse@ email addresses.
  3. Publish a terms of service page to clarify user agreements and legal protections.
  4. Enhance accessibility features to meet higher standards for users with disabilities.
  5. Provide visible and verified contact information including company emails and phone numbers to improve business credibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
EUC
Description
Největší poskytovatel ambulantní péče v ČR, provozuje kliniky, mamocentra, lékárny a laboratoře, ročně ošetří 1 milion pacientů.
Key services
ambulantní péče, klinické služby, mamocentra, lékárny, laboratoře
Content quality
good
Branding
consistent

Technology

Stack
JavaScript, Google Tag Manager, Cookiebot, Facebook Pixel, Google Analytics, HTML5, CSS3
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with denial by default
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Hotjar, Facebook Pixel
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Meta Platforms, Inc., PubMatic, Ströer Media Deutschland
Tracking pixels
Facebook Pixel, Hotjar, Cookiebot
Marketing tools
Cookiebot, Facebook Pixel, Hotjar
Transparency
good

Site quality

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

Key observations

  1. Website uses Cookiebot for GDPR-compliant cookie consent management
  2. Multiple third-party analytics and marketing scripts are present
  3. No explicit contact emails or phone numbers found in the HTML content
  4. No terms of service page detected
  5. Website content is in Czech language targeting Czech healthcare consumers
  6. Strong branding and consistent messaging about being largest outpatient care provider in Czech Republic
Technical notes

Notes

The website uses a modern tech stack with asynchronous loading of analytics and marketing scripts including Google Tag Manager, Facebook Pixel, and Cookiebot. The HTML and CSS are valid and the site is mobile responsive with good SEO metadata including Open Graph and Twitter cards. Performance is moderate with room for optimization. No CMS was explicitly detected. Hosting provider details are not disclosed. The site uses extensive cookie management and tracking controls to comply with GDPR. Technical risks are low but could be further mitigated by adding security headers and improving accessibility.
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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