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Security report for datarun.cz

Datarun · Technology · Czech Republic

Medium risk. 3 critical or high findings in Security headers and SSL/TLS.

Security score

73/100

Risk levelMedium

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

Datarun is a Czech technology company specializing in data processing and automation solutions, targeting business clients and professionals. The website is built using modern web technologies such as React and Next.js, indicating a contemporary digital infrastructure. The presence of cookie consent mechanisms and integration with Google Analytics and other marketing tools reflects a moderate level of digital maturity and privacy awareness. However, the absence of a visible privacy policy page and WHOIS data limits full compliance verification. Security posture is generally good with HTTPS enforced, but lacks some advanced security headers and explicit incident response information. Overall, the website presents a professional and trustworthy front but would benefit from enhanced transparency and security documentation.

Scanned

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

NIS2 and GDPR posture

GDPR outside view
88/ 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

3 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 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 datarun.cz

This scan found 21 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
72
Security headers
35
Email security
60
DNS health
80
Network security
100
GDPR outside view
88
Average
73

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 technology sector with a focus on data automation and processing services. Its business model appears to be B2B, serving clients in the Czech Republic. The website content and branding are consistent and professional, though limited in publicly available business contact information. The use of multiple external domains for analytics and media content suggests partnerships with major service providers like Amazon, Google, and Vimeo. The lack of WHOIS data and registrant details introduces some uncertainty about domain ownership transparency. There is no evidence of certifications or formal security policies published, which could be areas for future improvement to enhance market trust and compliance.

Security posture

The website enforces HTTPS and uses cookie consent tools, which are positive security indicators. However, no security headers were detected in the provided data, and there is no published security policy or incident response contact information. The absence of a security.txt file or vulnerability disclosure policy reduces the site's readiness for coordinated vulnerability reporting. No obvious vulnerabilities or exposed sensitive data were found in the HTML content. The security score is moderate, reflecting good basic practices but room for improvement in advanced security controls and transparency.

Recommendations

  1. Publish a comprehensive privacy policy page clearly accessible from the website.
  2. Implement and configure security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  3. Add a security.txt file to facilitate vulnerability disclosure and improve incident response readiness.
  4. Provide clear and verified contact information including company emails and phone numbers to enhance business credibility.
  5. Consider publishing terms of service and security policy documents to improve transparency and compliance posture.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Datarun
Description
Datarun is a technology company focused on data processing and automation solutions. The website content is primarily in Czech and targets businesses or professionals interested in data services.
Key services
data automation, data processing, technology consulting
Content quality
good
Branding
consistent

Technology

Stack
React, Next.js, JavaScript, Cookiebot, Google Tag Manager, Google Analytics
Frameworks
Next.js
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner implemented

Analytics and tracking

Services
Google Analytics
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Meta Platforms, Inc., Google
Tracking pixels
Facebook Pixel, Twitter Pixel
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 uses modern React/Next.js framework
  2. Cookie consent is implemented with Cookiebot
  3. No visible contact emails or phone numbers on main page
  4. WHOIS data unavailable, possibly due to privacy protection or domain registration issues
  5. Multiple external domains used for analytics and media content
  6. No security.txt or explicit security policy pages found
  7. No privacy policy page explicitly found, but cookie consent banner present
  8. No terms of service page detected
Technical notes

Notes

The website is built on a modern React and Next.js framework, leveraging client-side and server-side rendering for performance. It integrates third-party services including Cookiebot for cookie consent management and Google Tag Manager for analytics and marketing. The site appears mobile-optimized with responsive design elements. Performance is moderate, with multiple asynchronous scripts loaded for analytics and consent management. No CMS was explicitly detected, suggesting a custom or headless approach. Hosting provider details are not evident from the HTML content. Technical debt appears low, but the site could benefit from improved accessibility features and SEO optimizations.
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. 73/100Medium28 findingsView report
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