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Security report for quantcom.cz

Quantcom · Telecommunications · Czech Republic

Medium risk. 9 critical or high findings in GDPR outside view, Security headers and 2 other checks.

Security score

58/100

Risk levelMedium

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

Quantcom is a Czech telecommunications company specializing in providing high-quality connectivity solutions for professional clients. Their services include internet, data, voice, security, cloud, and infrastructure leasing. They operate their own international optical backbone network and metropolitan networks, serving a broad range of business customers from SMEs to multinational corporations and state institutions. The company emphasizes reliability, speed, and personalized service with 24/7 support and SLA guarantees. The website reflects a mature digital presence with modern technologies and comprehensive content tailored to business clients. Technically, the website is built using Gatsby, React, and Tailwind CSS, leveraging modern web development frameworks for performance and responsiveness. It integrates multiple analytics and marketing tools such as Google Analytics, Hotjar, Facebook Pixel, and Adform for tracking and retargeting, combined with a robust cookie consent mechanism via Cookiebot. The site is mobile-optimized and accessible, with good SEO practices. From a security perspective, the site uses HTTPS and CAPTCHA on forms, but lacks visible security headers and published security policies or incident response information. No vulnerability disclosure or security.txt files are found. The absence of WHOIS data limits domain legitimacy assessment, but the professional site content and contact details support a trustworthy business profile. Overall, Quantcom presents a solid business and technical profile with room for improvement in security transparency and domain registration clarity. Strategic recommendations include enhancing security headers, publishing security policies, and verifying domain registration details to strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
25/ 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

9 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

  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 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';…

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

Keep watching quantcom.cz

This scan found 25 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

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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
72
Security headers
15
Email security
70
DNS health
65
Network security
100
GDPR outside view
25
Average
58

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 quantcom.cz, from OffSeq Breach.

Total records
2
Employees
0
Customers
2
Third parties
0
Weak passwords
0%

1 subdomain 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 quantcom.cz.

Select it in the checkout above.

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

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Technical appendix

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

Business context

Business profile

Quantcom holds a strong position in the Czech telecommunications market, focusing on B2B connectivity solutions with an emphasis on optical networks and infrastructure. Their competitive advantage lies in owning and operating their own international and metropolitan optical networks, enabling them to offer guaranteed high-speed and reliable services. The business model centers on customized solutions for diverse business clients, including telecom operators and developers, with revenue streams from internet, data, voice, security, cloud services, and infrastructure leasing. The company demonstrates growth through active participation in major internet exchange points and commercial development projects. Their partnership ecosystem includes telecom operators and IT integrators, enhancing market reach and service integration. The website content and service offerings indicate a mature and professional operation with a clear focus on business customers.

Security posture

Quantcom's website security posture is moderate to good. The use of HTTPS and CAPTCHA on the contact form are positive indicators. The implementation of cookie consent via Cookiebot shows attention to privacy compliance. However, the absence of key security headers such as Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), and X-Frame-Options reduces the overall security robustness. There is no publicly available security policy or incident response information, which limits transparency and preparedness perception. No vulnerability disclosure or security.txt files are present, which are best practices for security communication. The extensive use of third-party analytics and marketing scripts necessitates ongoing monitoring to avoid vulnerabilities. Overall, the security posture is adequate but could be improved by adopting additional security headers, publishing security policies, and establishing vulnerability disclosure channels.

Recommendations

  1. Implement and enforce security headers including CSP, HSTS, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a clear security policy and incident response plan on the website to improve transparency and customer trust.
  3. Establish a vulnerability disclosure program or security.txt file to facilitate responsible reporting of security issues.
  4. Regularly audit and update third-party scripts and libraries to mitigate risks from vulnerable dependencies.
  5. Verify and publish domain registration details to improve legitimacy and trustworthiness perception.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Quantcom
Description
Quantcom is a telecommunications company specializing in providing professional connectivity solutions including internet, data, voice, security, cloud, and infrastructure services. They build and operate their own international optical backbone network and metropolitan networks in major cities, serving small to large companies, operators, IT integrators, and developers.
Key services
Internet, Data services, Voice services, Security, Cloud solutions, Infrastructure leasing
Content quality
good
Branding
consistent

Technology

Stack
React, Gatsby, Tailwind CSS, Google Tag Manager, Google Analytics, Hotjar, Facebook Pixel, Smartlook, Adform
Frameworks
Gatsby
Performance
fast
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Use of CAPTCHA on contact form
  • Cookie consent management via Cookiebot

Analytics and tracking

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

Advertising

Ad networks
Adform
Tracking pixels
Facebook Pixel, Hotjar, Smartlook
Marketing tools
Cookiebot
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. Content is professionally presented and targeted at business customers.
  3. WHOIS data is unavailable, which is unusual and warrants further investigation.
  4. Strong use of modern web technologies and analytics tools.
  5. Good privacy and cookie consent mechanisms implemented.
  6. Contact information is clearly provided with multiple channels.
  7. No explicit security policy or incident response information published.
  8. No vulnerability disclosure or security.txt found.
  9. No evidence of adult or questionable content.
Technical notes

Notes

The website is built on a modern tech stack using Gatsby (a React-based static site generator) and Tailwind CSS for styling, ensuring fast loading times and responsive design. Integration of multiple analytics and marketing tools such as Google Analytics, Hotjar, Facebook Pixel, and Adform indicates a mature digital marketing strategy. The site uses cookie consent management via Cookiebot, supporting GDPR compliance. The contact form includes CAPTCHA to prevent spam. The site is well-structured with proper meta tags and SEO optimization. No CMS detected beyond Gatsby static generation. Hosting provider details are not explicitly found. Performance is fast with good mobile optimization and accessibility features. Technical risks include reliance on multiple third-party scripts which require monitoring for vulnerabilities.
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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