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Security report for vizus.cz

VIZUS.CZ s.r.o. · Technology · Czech Republic

High risk. 6 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

33/100

Risk levelHigh

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

VIZUS.CZ s.r.o. is a Czech technology company specializing in custom software development, web and mobile applications, and comprehensive digital services including hosting and domain management. With over 20 years of market experience and a stable team, they serve a broad client base with tailored solutions. Their website reflects a mature digital presence with professional design, clear navigation, and GDPR-compliant privacy and cookie policies. Technically, they utilize their own CMS and cloud hosting infrastructure located in the Czech Republic, ensuring data locality and control. Security posture is good with HTTPS and cookie consent mechanisms, though some security headers and explicit policies could be improved. The absence of WHOIS data reduces domain trust but the business content and client references support legitimacy. Overall, the company demonstrates strong digital maturity and business credibility.

Scanned

This is an earlier scan of vizus.cz. View the latest report

NIS2 and GDPR posture

GDPR outside view
25/ 100 · Critical
Checks completed
5of 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. 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

      No Cookie Consent Banner found

      GDPR requires explicit consent for non-essential cookies

      What to do: Implement a cookie consent banner that appears on first visit

    • High

      Third-party services without privacy policy

      Detected services: Google Analytics

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

  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.

    • Critical

      Unable to retrieve SSL certificate

      Could not establish secure connection to retrieve certificate information

      What to do: Check if the server is accessible and SSL/TLS is properly configured

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

Keep watching vizus.cz

This scan found 10 issues across 4 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
0
Security headers
85
Network security
20
GDPR outside view
25
Average
33

Not counted

  • Email security: did not complete in this scan.
  • DNS health: did not complete in this scan.
  • 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 vizus.cz, from OffSeq Breach.

Total records
178
Employees
1
Customers
169
Third parties
8
Weak passwords
12%

Latest record dated 2025-06-22 · 100 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 vizus.cz.

Select it in the checkout above.

Masked preview

  • –servis.baxi.alfa2.vizus.cz2025-06-22

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

The company operates in the technology sector, targeting businesses needing custom digital solutions. Their business model focuses on service provision with a full lifecycle approach from development to hosting and ongoing support. Market positioning is strong with long-term client relationships and a significant portfolio of active websites and domains. Their ecosystem includes digital marketing, SEO, and PR services, enhancing client value. Growth indicators include a stable team and extensive client base. Strategic observations suggest leveraging their own CMS and hosting as competitive advantages, while improving transparency in security and incident response could enhance trust.

Security posture

The website employs HTTPS and a cookie consent mechanism, indicating awareness of privacy and security best practices. However, the lack of explicit security policies, incident response contacts, and security.txt file suggests room for improvement in transparency and readiness. Security headers like Content-Security-Policy and X-Frame-Options are not explicitly detected, which could be added to strengthen defense against common web attacks. No vulnerabilities or exposed sensitive data were found in the analysis. Overall, the security maturity is good but could be enhanced by formalizing policies and improving header configurations.

Recommendations

  1. Implement and enforce Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options headers to improve security.
  2. Publish a dedicated security policy and incident response contact information on the website.
  3. Create and host a security.txt file to facilitate vulnerability disclosure and improve transparency.
  4. Verify and update WHOIS registration data to improve domain trust and legitimacy.
  5. Regularly audit third-party scripts and maintain up-to-date software to mitigate potential vulnerabilities.

Contact details published on the site

Addresses
Legal name
VIZUS.CZ s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
VIZUS.CZ s.r.o.
Description
Jsme vývojářská firma s více než 20 lety zkušeností na trhu. Vyvíjíme na míru, vaše projekty NEUstále ROzvíjíme a zajišťujeme komplexní služby na klíč.
Key services
Custom software development, Web applications, Mobile applications, Web hosting, Domain registration and management, Digital marketing (SEO, campaigns, strategy), Copywriting, Public relations, Social media management, Graphic design
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Custom CMS (Vizus CMS), JavaScript, CSS3, HTML5
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with granular controls
  • No exposed sensitive data in HTML
  • No vulnerable libraries detected

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and professional design.
  2. No WAF or blocking mechanisms detected.
  3. WHOIS data unavailable, which is unusual and reduces domain trust.
  4. Comprehensive cookie consent mechanism implemented.
  5. Clear contact information and business details provided.
  6. No explicit security policy or incident response info found.
  7. No security.txt or vulnerability disclosure page detected.
  8. Website uses own CMS and hosting infrastructure in Czech Republic.
  9. Multiple client logos and references indicate established business.
  10. Privacy and cookie policies are present and GDPR compliant.
Technical notes

Notes

The website is built on a proprietary CMS (Vizus CMS) and hosted on cloud infrastructure located in the Czech Republic, ensuring data sovereignty. It uses modern web technologies including HTML5, CSS3, and JavaScript with Google Tag Manager for analytics and marketing. The site is mobile-optimized with responsive design and good accessibility features. Performance is fast with optimized assets and asynchronous loading of scripts. Meta tags and Open Graph data are well implemented for SEO and social sharing. Technical debt appears low, but adding security headers and formalizing security policies would enhance the technical robustness.
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. 57/100Medium29 findingsView report
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