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Security report for cleanair.co.uk

Clean Air Group · Energy · United Kingdom

Medium risk. 4 critical or high findings in SSL/TLS and Security headers.

Security score

70/100

Risk levelMedium

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

Clean Air Group is a UK-based HVAC contractor specializing in evaporative cooling, ventilation, air conditioning, heating, and HVAC maintenance services. With over 30 years of experience, they serve commercial and industrial clients nationwide, positioning themselves as a reliable and professional service provider in the energy sector. Their website reflects a mature digital presence with comprehensive service descriptions and positive customer reviews, indicating strong market positioning. Technically, the website is built on WordPress using Elementor and integrates modern technologies such as Google reCAPTCHA and GDPR-compliant cookie consent mechanisms. The site demonstrates good mobile optimization, SEO practices, and moderate performance. Security measures include HTTPS enforcement and bot protection, though some security headers are missing, suggesting room for improvement. The security posture is solid with no evident vulnerabilities or exposed sensitive data. Privacy compliance is well addressed with clear privacy and cookie policies and user consent mechanisms. However, the WHOIS data is unavailable due to domain naming rules errors, which limits domain trust verification and slightly impacts overall credibility. Overall, the website presents a professional and trustworthy business front with minor technical and compliance enhancements recommended to further strengthen security and trustworthiness.

Scanned

NIS2 and GDPR posture

GDPR outside view
95/ 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

4 findings rated critical or high. Fix these first.

  1. 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

  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 cleanair.co.uk

This scan found 22 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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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
57
Security headers
15
Email security
85
DNS health
70
Network security
100
GDPR outside view
95
Average
70

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

Clean Air Group operates in the HVAC contracting sector with a focus on energy-related services. Their business model targets B2B clients requiring installation and maintenance of cooling and heating systems. The company leverages a strong reputation supported by numerous positive Google reviews and a professional online presence. Their competitive advantage lies in their extensive experience and comprehensive service offerings. The website's integration of marketing and analytics tools indicates an active approach to customer engagement and performance monitoring. No direct partnerships or subsidiaries were identified from the website content.

Security posture

The website employs HTTPS with a valid SSL certificate and uses Google reCAPTCHA to mitigate bot attacks. Cookie consent is managed via a compliant banner with detailed cookie categorization. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options reduces the overall security posture. No signs of vulnerabilities, malware, or exposed credentials were found. Incident response and security policy documentation are not publicly available, which could be improved to enhance transparency and readiness. The lack of a security.txt file or vulnerability disclosure policy is noted.

Recommendations

  1. Implement comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a security policy and incident response plan on the website to improve transparency and preparedness.
  3. Add a security.txt file to facilitate responsible vulnerability disclosure and improve security communication.
  4. Regularly audit and update WordPress core, themes, and plugins to mitigate risks from outdated software.
  5. Enhance accessibility features to meet compliance standards and improve user experience for all visitors.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Clean Air Group
Description
Air conditioning, ventilation, evaporative cooling and heating contractors who design, supply and install outstanding cooling and heating systems. Clean Air have excelled in HVAC for over 30 years and operate throughout the country.
Key services
evaporative cooling, ventilation, air conditioning, heating, HVAC maintenance and servicing
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Elementor, jQuery, Google reCAPTCHA, WebToffee Cookie Consent
Frameworks
WordPress CMS, Elementor page builder
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA for bot protection
  • Cookie consent banner with GDPR compliance

Analytics and tracking

Services
Google Analytics, Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
doubleclick.net, Google Ads
Marketing tools
Trustindex reviews widget
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge
  2. Professional HVAC contractor site with clear business focus
  3. Compliant cookie consent and privacy policy present
  4. No exposed sensitive data or security vulnerabilities detected
  5. WHOIS data unavailable due to domain naming rules error, limiting domain trust verification
  6. Multiple positive Google reviews embedded on site
  7. Use of modern WordPress technologies and plugins
  8. No terms of service or explicit security policy pages found
Technical notes

Notes

The website is powered by WordPress CMS with Elementor page builder, leveraging jQuery and Google reCAPTCHA scripts. Cookie consent is managed by the WebToffee plugin, ensuring GDPR compliance. The site loads external resources from trusted domains such as Google and YouTube. Performance is moderate with good mobile responsiveness and SEO optimization. No hosting provider details were identified. The technical stack is modern but could benefit from additional security hardening and accessibility improvements to reduce technical debt and operational risks.
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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