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Security report for datafly.cz

DataFly · Technology · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, Security headers and 1 other check.

Security score

61/100

Risk levelMedium

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

DataFly is a Czech Republic-based company specializing in IoT hub solutions and sensor integration for industrial measurement applications. Their website presents a professional and focused business offering wireless sensor communication technologies including WiFi and LoRa, targeting industrial and commercial clients. The company appears to be a small-sized entity founded in 2018, with partnerships evident with IoT platform provider Tanix and sensor hardware provider BD Sensors. Technically, the website is built using Mobirise CMS with Bootstrap and includes modern tracking tools like Google Analytics and Tag Manager. The site is mobile optimized and provides clear navigation and contact information, including a named product manager with direct contact details. Security posture is moderate with HTTPS enforced and cookie consent implemented, but lacks advanced security headers and published security policies. Privacy compliance is basic, with no privacy policy or terms of service found. Overall, the website is trustworthy and professionally presented but could improve in privacy and security transparency.

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

8 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 datafly.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.

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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
82
Security headers
15
Email security
70
DNS health
75
Network security
100
GDPR outside view
25
Average
61

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

DataFly operates in the technology and energy sectors, focusing on IoT measurement solutions. Their business model revolves around providing IoT hubs and sensor integration services, leveraging wireless communication technologies such as WiFi and LoRa. The company targets industrial clients requiring automated measurement and data visualization. Partnerships with Tanix and BD Sensors enhance their ecosystem and product offerings. The domain age and WHOIS data support legitimacy and consistent business presence since 2018. The website content and structure indicate a niche market position with a focus on quality and technical expertise rather than mass-market appeal.

Security posture

The website enforces HTTPS and implements a cookie consent mechanism with granular user controls, indicating awareness of privacy regulations. However, the absence of a privacy policy, terms of service, security.txt, and incident response contacts limits transparency and compliance maturity. No advanced security headers such as CSP or HSTS were detected, which could expose the site to certain web-based attacks. No vulnerabilities or exposed sensitive data were found in the HTML content. The use of third-party scripts like Google Analytics and Tag Manager introduces moderate tracking but no evident privacy safeguards beyond consent. Overall, the security posture is moderate but could be significantly improved by adding formal policies, security headers, and incident response mechanisms.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service pages to improve legal compliance and user trust.
  2. Implement security headers including Content-Security-Policy, X-Frame-Options, and HSTS to enhance protection against common web attacks.
  3. Add a security.txt file and incident response contact information to facilitate vulnerability reporting and improve security transparency.
  4. Conduct regular audits of third-party scripts and dependencies to minimize risk from vulnerable libraries.
  5. Enhance accessibility features and SEO optimization to improve user experience and search engine visibility.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
DataFly
Description
Komplexní služby v oblasti měření elektrických a neelektrických veličin v různých průmyslových aplikacích.
Key services
IoT Hub platform, Wireless sensor communication, Data measurement and visualization, Integration with LoRa and WiFi technologies
Content quality
good
Branding
consistent

Technology

Stack
Mobirise Website Builder v5.3.0, Bootstrap 4/5, jQuery, Google Tag Manager, Google Analytics (gtag.js), Jarallax (parallax scrolling), Typed.js
Frameworks
Bootstrap
Performance
moderate
Mobile
good
Accessibility
basic
SEO
basic

Security

Observed score
70/100
Good practices seen
  • HTTPS enforced
  • Cookie consent banner with granular settings
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics
Tracking level
moderate
Privacy practices
basic

Advertising

Transparency
basic

Site quality

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

Key observations

  1. Website uses Mobirise CMS with Bootstrap framework.
  2. Cookie consent banner is implemented with granular settings.
  3. No privacy policy or terms of service pages found.
  4. Contact information is clearly presented with a named contact person.
  5. No security.txt or vulnerability disclosure policy found.
  6. No explicit security headers detected in the provided data.
  7. Website content is in Czech language targeting industrial IoT clients.
  8. Google Analytics and Google Tag Manager are used for tracking.
  9. No social media links found in the provided HTML.
  10. No forms detected on the main page content.
Technical notes

Notes

The website is built on Mobirise CMS using Bootstrap framework, jQuery, and several JavaScript libraries for UI effects and analytics. Hosting appears to be with Active24, a known Czech hosting provider. The site loads with moderate performance and is mobile optimized. SEO is basic with meta description and viewport tags but lacks structured data or Open Graph tags. No forms were detected, indicating limited direct data collection on the main pages. Cookie consent is implemented with a modern mechanism allowing granular user control. The technical stack is modern but could benefit from improved accessibility and SEO enhancements. No critical technical debt or risks were identified from the provided content.
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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