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Security report for cylinders.cz

Cylinders Holding · Energy · Czech Republic

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

Security score

67/100

Risk levelMedium

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

Cylinders Holding is a prominent European manufacturer specializing in pressure cylinders and comprehensive gas storage solutions. The company targets industrial and commercial sectors requiring reliable and high-quality gas storage products. Their market position as a leading manufacturer in Europe underscores their expertise and established presence in the energy sector. The website reflects a professional image consistent with their business focus, utilizing the Wix platform for content delivery. Technically, the site employs modern JavaScript polyfills and is hosted on Wix infrastructure, offering moderate performance and good mobile optimization. Security-wise, the site benefits from HTTPS and some JavaScript hardening techniques but lacks visible security headers and formal privacy or cookie policies, which are areas for improvement. The absence of WHOIS data due to privacy protection slightly impacts trust but does not negate the overall legitimacy suggested by the professional web presence. Strategic recommendations include enhancing transparency through privacy and cookie policies, improving security headers, and providing clear contact information to bolster trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
48/ 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 Cookie Policy found

      GDPR requires clear information about cookie usage

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

  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"

    • 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';…

  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 cylinders.cz

This scan found 23 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.

Daily monitoring

Recommended

€25per month

  • TLS certificates and expiry
  • DNS records
  • SPF, DKIM and DMARC
  • Security headers
  • GDPR and NIS2 posture
  • Exposed services
  • Third-party trackers
  • Security score drift

Email alerts on material changes and an exportable JSON history of every change.

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Full report

€39.90one-time

  • The complete analysis as a PDF you can cite
  • Email delivery with an unlock code
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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
70
DNS health
75
Network security
100
GDPR outside view
48
Average
67

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

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 energy manufacturing sector, focusing on pressure cylinders and gas storage systems. Their business model revolves around manufacturing and supplying these products to industrial clients. The website content and structured data indicate a large-scale operation with a European market focus. While direct revenue streams and partnerships are not explicitly detailed, the professional presentation and market positioning suggest a stable business with potential growth opportunities. The lack of visible partner or subsidiary domains limits insight into their broader ecosystem. The company could benefit from showcasing certifications, partnerships, and detailed business information to enhance credibility and market intelligence.

Security posture

The website demonstrates a basic to moderate security posture. HTTPS is enforced, and JavaScript overrides indicate an effort to harden client-side requests. However, the absence of key security headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security reduces the overall security effectiveness. No explicit incident response or security policy information is available, and no vulnerability disclosure or security.txt files are present. The lack of privacy and cookie policies also indicates potential compliance gaps, particularly with GDPR. Overall, while no critical vulnerabilities are evident, the site would benefit from implementing comprehensive security headers, formal policies, and incident response contacts to improve security maturity and compliance.

Recommendations

  1. Implement comprehensive privacy and cookie policies with clear GDPR compliance and consent mechanisms.
  2. Add essential security headers including Content-Security-Policy, X-Content-Type-Options, X-Frame-Options, and Strict-Transport-Security.
  3. Publish contact information for security incidents and designate a data protection officer or contact point.
  4. Regularly audit and update third-party scripts and libraries to mitigate vulnerabilities.
  5. Enhance accessibility features to meet compliance standards and improve user experience.

Contact details published on the site

Addresses
Legal name
Cylinders Holding
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Cylinders Holding
Description
Cylinders Holding is a leading European manufacturer of pressure cylinders and complete gas storage solutions.
Key services
manufacture of pressure cylinders, complete gas storage solutions
Content quality
good
Branding
consistent

Technology

Stack
Wix.com Website Builder, JavaScript, core-js polyfills, focus-within-polyfill
Platforms
Wix
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS enabled
  • Use of security-related JavaScript overrides to harden fetch and XHR

Analytics and tracking

Tracking level
minimal
Privacy practices
poor

Advertising

Transparency
poor

Site quality

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

Key observations

  1. Website is built on Wix platform with professional design.
  2. No visible privacy, cookie, or terms of service policies found.
  3. No contact emails or phone numbers explicitly found in the content.
  4. WHOIS data is not publicly available, indicating privacy protection.
  5. No security.txt or vulnerability disclosure information present.
  6. No visible social media links or external business partner domains.
  7. Content is business-focused and safe for general audiences.
Technical notes

Notes

The website is built on the Wix platform, leveraging its CMS and hosting services. It uses modern JavaScript polyfills to support legacy browsers and includes performance optimizations typical of Wix sites. The site is mobile optimized with responsive design elements. SEO is basic, with meta tags and structured data implemented but lacking advanced SEO features. Performance is moderate, likely constrained by the Wix platform's inherent overhead. Technical debt appears low due to the managed platform, but reliance on Wix limits customization and advanced security configurations. Opportunities exist to improve SEO, accessibility, and security configurations to enhance overall technical quality.
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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