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Security report for airco.co.uk

Airco · Energy · United Kingdom

Medium risk. 7 critical or high findings in SSL/TLS, GDPR outside view and 1 other check.

Security score

61/100

Risk levelMedium

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

Airco Refrigeration & Air Conditioning Limited is a well-established UK-based HVAC service provider specializing in design, supply, installation, commissioning, servicing, and maintenance of air conditioning, refrigeration, heating, ventilation, electrical, and carbon reduction solutions. The company operates nationally with multiple offices and safe storage units, serving a broad range of sectors. Their website reflects a mature digital presence with professional design, comprehensive service descriptions, and multiple trust signals including certifications and case studies. Technically, the site is built on WordPress with modern plugins and tracking tools, optimized for SEO and mobile use. Security posture is good with HTTPS and reCAPTCHA implemented, though some improvements in security headers and explicit policies could be made. Overall, the site is trustworthy, business-focused, and compliant with GDPR, though cookie consent mechanisms are absent.

Scanned

NIS2 and GDPR posture

GDPR outside view
53/ 100 · Medium
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

7 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
    • High

      Weak SSL Key Length

      SSL certificate uses 256-bit key, which is considered weak

      What to do: Use at least 2048-bit RSA or 256-bit ECC key

      • CWE-326
      • OWASP A04:2025
      • Mozilla TLS: Mozilla Server Side TLS 6.0 intermediate: rsa_key_size 2048

  2. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • 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

  3. 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

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

Keep watching airco.co.uk

This scan found 26 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
42
Security headers
30
Email security
75
DNS health
65
Network security
100
GDPR outside view
53
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

Airco holds a strong market position as a medium-sized HVAC service provider with a history dating back to 1991 and a domain registered since 1998. Their business model focuses on comprehensive HVAC solutions with a national footprint across the UK. The company leverages multiple certifications and accreditations to build trust and credibility. Their target customers are commercial and institutional clients requiring HVAC and energy solutions. The website indicates ongoing growth with updated case studies and a broad service portfolio. Partnerships with recognized brands and a professional digital presence support their competitive advantage.

Security posture

The website demonstrates a solid security foundation with HTTPS enforced and Google reCAPTCHA protecting forms. However, the absence of explicit security headers such as Content-Security-Policy and lack of a published security policy or incident response contact reduce the overall security maturity. No vulnerabilities or exposed sensitive data were detected in the HTML content. GDPR compliance is indicated by the presence of a privacy policy, but the lack of a cookie consent mechanism is a compliance gap. Overall, the security posture is good but could be enhanced by implementing additional headers, formal security policies, and cookie consent.

Recommendations

  1. Implement a cookie consent banner/mechanism to comply fully with GDPR and ePrivacy regulations.
  2. Add security headers including Content-Security-Policy, X-Frame-Options, and X-XSS-Protection to enhance browser security.
  3. Publish a dedicated security policy and incident response contact information to improve transparency and preparedness.
  4. Regularly review and update third-party scripts and plugins to mitigate vulnerabilities.
  5. Enhance accessibility features to improve compliance and user experience for all users.

Contact details published on the site

Addresses
Legal name
AIRCO Refrigeration & Air Conditioning Limited
Registration number
03418561
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Airco
Description
Aircon, Refrigeration, Plumbing/Heating, Electrical & Renewables services across multiple UK locations including Hull, Leeds, Immingham, Sheffield, Birmingham, Milton Keynes & London.
Key services
Air Conditioning, Refrigeration, Chillers, Ventilation, Heating, Electrical, Carbon Reduction
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Yoast SEO, Google Analytics, Contact Form 7, jQuery, AOS (Animate On Scroll), Swiper.js, Isotope.js
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Google reCAPTCHA v3 implemented on forms
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, MonsterInsights
Tracking level
moderate
Privacy practices
basic

Advertising

Tracking pixels
MonsterInsights
Marketing tools
MonsterInsights
Transparency
basic

Site quality

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

Key observations

  1. Website is professionally designed and well-structured
  2. Comprehensive service offerings with detailed case studies
  3. Multiple industry certifications and accreditations displayed
  4. Clear and multiple contact methods including phone, email, and contact forms
  5. Use of modern web technologies and SEO best practices
  6. No signs of blocking or WAF challenges
  7. No explicit privacy or security policy pages beyond standard privacy and terms
  8. Cookie consent mechanism not detected
  9. Google Analytics and tracking scripts present with opt-out functionality
Technical notes

Notes

The website is built on WordPress CMS with a modern tech stack including Yoast SEO, Contact Form 7, jQuery, AOS for animations, Swiper.js for sliders, and Isotope.js for layout management. Google Analytics is integrated via MonsterInsights for tracking and analytics. Hosting and DNS are managed through Cloudflare, providing performance and security benefits. The site is mobile-optimized with responsive design and good SEO practices including meta tags and structured data. Performance is moderate with asynchronous script loading and optimized images. Opportunities exist to improve accessibility and implement advanced security headers.
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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