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Security report for ytong.cz

Xella · Manufacturing · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view and Security headers.

Security score

72/100

Risk levelMedium

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

Xella.cz represents a Czech manufacturing company specializing in construction materials or related products, as inferred from the domain and branding. The website is built using modern web technologies such as Angular and integrates cookie consent management via Usercentrics, indicating compliance awareness with GDPR. However, the website content in the provided snapshot is minimal, likely due to client-side rendering, and lacks visible contact information, privacy policy, or terms of service pages. The WHOIS data is unavailable, which raises concerns about domain registration transparency and trustworthiness. Technically, the site uses Google Tag Manager for analytics and has a moderate performance and mobile optimization level. Security headers and explicit SSL configuration details are not visible in the provided data, limiting the security posture assessment. Overall, the site appears legitimate but would benefit from improved transparency and security practices.

Scanned

NIS2 and GDPR posture

GDPR outside view
10/ 100 · Critical
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. 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 Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

  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"

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

Keep watching ytong.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
95
Security headers
55
Email security
85
DNS health
85
Network security
100
GDPR outside view
10
Average
72

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 ytong.cz, from OffSeq Breach.

Total records
41
Employees
0
Customers
41
Third parties
0
Weak passwords
7%

6 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 ytong.cz.

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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

Xella operates in the manufacturing sector, targeting construction professionals and industry stakeholders in the Czech Republic. The business model is B2B, focusing on supplying building materials. The website's digital presence is professional but basic in content depth and lacks visible trust signals such as certifications or detailed company information. The integration of Usercentrics CMP suggests a commitment to privacy compliance. The absence of WHOIS data and contact details limits external validation of the company's legitimacy. The company likely benefits from regional market positioning but should enhance its online transparency and customer engagement channels.

Security posture

The security posture of the website is moderate. HTTPS is implied by the use of Google Tag Manager and other scripts loaded over HTTPS, but no explicit security headers were detected in the HTML snapshot. The presence of a cookie consent mechanism is a positive indicator of privacy compliance efforts. No forms or input fields were found, reducing immediate risk of input-based vulnerabilities. The lack of visible incident response contacts or security policies is a gap. The missing WHOIS data reduces trust and may indicate privacy protection or registration issues. Recommendations include implementing security headers, publishing clear privacy and security policies, and providing contact information for incident reporting.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service accessible from the website.
  2. Add clear company contact information including emails and phone numbers.
  3. Implement and verify HTTP security headers such as Content-Security-Policy, X-Frame-Options, and HSTS.
  4. Ensure WHOIS domain registration data is complete and publicly accessible to improve trust.
  5. Conduct regular security audits and vulnerability assessments to maintain a strong security posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Xella
Description
Xella is a company operating in the manufacturing sector, likely specializing in building materials or construction solutions given the domain and branding colors. The website is in Czech language and targets the Czech market.
Key services
Manufacturing and supply of construction materials
Content quality
basic
Branding
consistent

Technology

Stack
Angular, Google Tag Manager, Usercentrics CMP, Roboto font, JavaScript Cookie library
Frameworks
Angular
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
60/100
Good practices seen
  • Use of HTTPS implied by Google Tag Manager and scripts loaded over HTTPS
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
basic

Advertising

Marketing tools
Usercentrics Consent Management Platform
Transparency
basic

Site quality

Design
good
User experience
good
Content relevance
basic
Navigation
basic
Professionalism
good
Trustworthiness
moderate

Key observations

  1. Website is built with Angular framework and uses modern web technologies.
  2. No WHOIS data available, which is unusual and reduces transparency.
  3. Cookie consent is implemented via Usercentrics, indicating GDPR awareness.
  4. No visible contact information or privacy policy found on the homepage HTML snapshot.
  5. No forms detected in the provided HTML content.
  6. External domains mostly relate to Usercentrics and Google Tag Manager services.
  7. No social media links or emails found in the provided content.
  8. No security headers detected in the HTML content; actual HTTP headers not provided.
  9. Website content is minimal in the provided snapshot, likely due to Angular app requiring JS execution.
Technical notes

Notes

The website is built on Angular, a modern JavaScript framework, indicating a contemporary technical infrastructure. It uses Google Tag Manager for analytics and Usercentrics for cookie consent management, showing integration of third-party marketing and privacy tools. Fonts are preloaded for performance optimization. The site appears moderately performant and mobile-optimized. However, the lack of visible server-side rendered content in the provided HTML snapshot suggests reliance on client-side rendering, which may impact SEO and accessibility if not properly handled. No CMS or hosting provider information was detected. Security headers and SSL configuration details are not available, representing a technical risk area. Overall, the technical stack is modern but could benefit from enhanced SEO, accessibility, and security configurations.
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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