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Security report for 81klima.cz

81 klima a.s. · Energy · Czech Republic

Medium risk. 6 critical or high findings in GDPR outside view and SSL/TLS.

Security score

68/100

Risk levelMedium

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

81 klima a.s. is a Czech Republic-based company specializing in the installation and servicing of air conditioning and heat pump systems for residential and commercial clients. The company operates multiple showrooms across major Czech cities and emphasizes quality service, competitive pricing, and long-term customer care. Their website reflects a mature digital presence with comprehensive content, customer testimonials, and certifications that reinforce trust. Technically, the website employs modern tracking and analytics tools including Google Tag Manager, Facebook Pixel, and Plausible Analytics, alongside a cookie consent mechanism compliant with GDPR. The site is well-structured, mobile-optimized, and uses HTTPS, indicating a secure and user-friendly environment. However, the absence of WHOIS data for the domain raises questions about domain registration transparency. Security posture is generally strong with HTTPS and consent management, but lacks explicit security headers and published incident response policies. No vulnerabilities or exposed sensitive data were detected. The company demonstrates good privacy compliance and business credibility through visible contact information, certifications, and positive customer feedback. Overall, 81 klima a.s. presents a professional and trustworthy online presence with minor areas for improvement in security transparency and domain registration verification.

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

6 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 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: Google Analytics, Facebook

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

  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 81klima.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.

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
57
Security headers
80
Email security
60
DNS health
85
Network security
100
GDPR outside view
25
Average
68

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 holds a strong position in the Czech HVAC market, focusing on air conditioning and heat pump installation with a direct-to-customer business model. Their multiple physical locations and extensive customer reviews suggest a medium-sized enterprise with regional influence. The business model relies on service quality, competitive pricing, and long-term maintenance contracts. Their certifications and memberships in industry associations enhance credibility. The website's integration with various marketing and analytics platforms indicates an active digital marketing strategy aimed at residential and commercial customers. The partnership with www.81.cz suggests a broader ecosystem or related business ventures.

Security posture

The website demonstrates a good security baseline with enforced HTTPS and cookie consent mechanisms aligned with GDPR. However, the lack of visible security headers such as Content-Security-Policy or Strict-Transport-Security is a gap. No security policy or incident response contact information is published, which limits transparency for security issues. No vulnerabilities or sensitive data exposures were found in the content. The use of multiple third-party tracking scripts is managed with user consent, reflecting privacy awareness. Overall, the security posture is solid but could be enhanced by publishing formal security policies and implementing additional HTTP security headers.

Recommendations

  1. Implement and enforce HTTP security headers including Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security to enhance protection against common web attacks.
  2. Publish a clear security policy and provide dedicated contact channels for incident reporting and vulnerability disclosure to improve transparency and trust.
  3. Verify and update WHOIS domain registration information to ensure transparency and reduce suspicion regarding domain legitimacy.
  4. Regularly audit third-party scripts and tracking technologies to minimize privacy risks and ensure compliance with evolving regulations.
  5. Enhance accessibility features and conduct periodic security assessments to maintain high standards of user experience and security.

Contact details published on the site

Addresses
Legal name
81 klima a.s.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
81 klima a.s.
Description
Montáž klimatizací na nejlepší ceny. Klimatizace s instalací do domů, bytů i firem jako zdroj tepla a chladu rychle a kvalitně.
Key services
Air conditioning installation, Heat pump installation, Long-term maintenance and service
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Google Analytics, Facebook Pixel, Pinterest tracking, Adform tracking, Plausible Analytics, jQuery UI (slider), Cloudflare (likely CDN/protection)
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Consent management for cookies
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Plausible Analytics, Facebook Pixel, Adform
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Bing Ads, Adform
Tracking pixels
Facebook Pixel, Pinterest tracking, Plausible Analytics
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and no blocking detected
  2. Strong presence of customer reviews and trust signals
  3. Comprehensive cookie consent and privacy policy implemented
  4. No WHOIS data available, which is unusual and warrants further investigation
  5. Use of multiple tracking and advertising technologies with consent management
  6. Multiple physical showrooms and contact points indicate established business
Technical notes

Notes

The website uses a modern technology stack with integration of Google Tag Manager, Facebook Pixel, Adform, and Plausible Analytics for marketing and analytics purposes. It employs lazy loading for images and responsive design for mobile optimization. The site is hosted likely behind Cloudflare CDN, improving performance and security. The HTML structure is valid and SEO optimized with proper meta tags and Open Graph data. However, no CMS or backend platform was explicitly detected. Performance is moderate with room for improvement in accessibility and security headers. The site uses JSON-LD structured data for organization and website schema, enhancing search engine understanding.
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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