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Security report for sunmill.cz

Sunmill | Fotovoltaické elektrárny · Energy · Czech Republic

Medium risk. 8 critical or high findings in GDPR outside view, SSL/TLS and 2 other checks.

Security score

55/100

Risk levelMedium

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

Sunmill s.r.o. is a Czech-based company specializing in turnkey photovoltaic and heat pump solutions for residential buildings, companies, and households. Established in 2022, the company has completed over 1300 installations and offers comprehensive services including design, installation, financing, and maintenance. Their market position is that of a medium-sized local energy solutions provider focused on renewable energy technologies. The website is built on WordPress using the Kadence theme and blocks, featuring modern design elements, embedded video content, and structured data for SEO and business information. Security posture is adequate with HTTPS and no visible vulnerabilities, but lacks explicit security headers and privacy policies. Marketing automation is implemented via Leady tracking scripts. Overall, the website is professional and trustworthy, though improvements in privacy compliance and security policy transparency are recommended.

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

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

    • 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

    • High

      Third-party services without privacy policy

      Detected services: YouTube

      What to do: Document all third-party data sharing in your privacy policy

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

Keep watching sunmill.cz

This scan found 19 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

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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
85
Email security
85
DNS health
60
Network security
20
GDPR outside view
10
Average
55

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

Sunmill operates in the renewable energy sector, targeting residential and commercial clients in the Czech Republic. Their competitive advantage lies in offering turnkey solutions with financing options and government subsidies, including partnerships with subsidy programs like OP TAK. The business model focuses on direct sales and installation services, supported by marketing automation tools. Growth indicators include a significant number of installations and a clear service portfolio. The partnership with optak.cz suggests a strategic alliance for financing. The company maintains a consistent brand presence and provides clear contact channels, enhancing customer trust and engagement.

Security posture

The website demonstrates a moderate security maturity level with HTTPS enforced and no exposed sensitive data. However, it lacks explicit security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options, which are recommended to mitigate common web vulnerabilities. There is no visible security policy or incident response information, which could impact user trust and compliance with best practices. The use of third-party marketing scripts introduces a moderate tracking footprint. No vulnerabilities or malware indicators were detected in the HTML content. To improve security posture, the company should implement comprehensive security headers, publish security policies, and establish incident response contacts.

Recommendations

  1. Implement and publish a comprehensive privacy policy and cookie consent mechanism to improve GDPR compliance.
  2. Add explicit security headers (CSP, X-Frame-Options, X-Content-Type-Options) to enhance web security.
  3. Provide a security policy and incident response contact information on the website.
  4. Fix lazy loading image errors to improve user experience and performance.
  5. Regularly review third-party scripts for privacy and security impact and consider minimizing tracking.

Contact details published on the site

Addresses
Legal name
Sunmill s.r.o.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sunmill | Fotovoltaické elektrárny
Description
Nabízíme: Fotovoltaika na klíč pro bytové domy, firmy a domácnosti – od návrhu po instalaci. Energetická nezávislost s kvalitním solárním řešením.
Key services
Fotovoltaika pro bytové domy, Fotovoltaika pro firmy, Fotovoltaika na rodinný dům, Servis fotovoltaiky, Financování fotovoltaiky, Subdodavatelské služby
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Kadence Theme, Kadence Blocks, YouTube embed, Leady tracking script
Frameworks
Schema.org JSON-LD, Kadence Blocks framework
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of async scripts to improve load

Analytics and tracking

Services
Leady
Tracking level
moderate
Privacy practices
poor

Advertising

Tracking pixels
Leady
Marketing tools
Leady marketing automation
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and focused on photovoltaic energy solutions.
  2. Content is in Czech language targeting Czech market.
  3. No explicit privacy or cookie policies found on main page or linked pages.
  4. Contact information is clearly provided including email, phone, and physical address.
  5. Use of modern WordPress theme and blocks with embedded video and structured data.
  6. No signs of malware, phishing, or suspicious content.
  7. Tracking script from leady.com used for marketing automation.
  8. No visible security policy or incident response information.
  9. No vulnerability disclosure or security.txt found.
Technical notes

Notes

The website is built on WordPress with the Kadence theme and Kadence Blocks, leveraging modern web technologies including JSON-LD structured data and embedded YouTube video content. The site is mobile-optimized with responsive design and good SEO metadata. Hosting and domain registration are managed by Active24, a reputable Czech provider. Performance is moderate with some minor issues related to lazy loading images. The technical stack is modern and well-maintained, but there is room for improvement in security header implementation and privacy compliance. Overall, the technical infrastructure supports the business goals effectively with opportunities for further optimization.
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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