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Security report for kier.co.uk

Kier Group plc · Energy · United Kingdom

Medium risk. 3 critical or high findings in GDPR outside view, SSL/TLS and 1 other check.

Security score

73/100

Risk levelMedium

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

Kier Group plc is a leading UK-based provider of infrastructure services, construction, and property development. The company positions itself as a major player in the UK infrastructure sector, delivering sustainable projects and serving a diverse audience including investors, clients, and job seekers. The website reflects a professional corporate identity with clear navigation, comprehensive content, and strong branding consistency. Technically, the site leverages modern web technologies such as jQuery, Swiper.js, Google Tag Manager, and accessibility tools like UserWay, hosted likely on a robust CMS platform (Umbraco). Security posture is strong with HTTPS enforcement, cookie consent mechanisms, and anti-forgery protections, although explicit security headers could be more visible. Privacy compliance is well addressed with detailed cookie and privacy policies, and GDPR adherence is evident. The WHOIS data for the subdomain 'www.kier.co.uk' is unavailable due to domain naming rules, but the overall legitimacy is supported by consistent branding and external references. Overall, the site demonstrates a mature digital presence suitable for an enterprise-level infrastructure company.

Scanned

NIS2 and GDPR posture

GDPR outside view
68/ 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

3 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.

    • 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

  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

  3. DNS health

    DNS sends visitors and email to the right servers. Misconfigured records can cause outages or let someone redirect your traffic.

    • High

      Domain Expires Soon

      Domain expires in 16 days

      What to do: Renew domain registration before expiration

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

Keep watching kier.co.uk

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.

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

Email alerts on material changes and an exportable JSON history of every change.

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Full report

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Prices incl. 21% VAT. Secure checkout by Mollie; sold by SEQ SIA, Latvia.

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
80
Email security
70
DNS health
50
Network security
100
GDPR outside view
68
Average
73

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

Kier Group operates in essential sectors including energy, transportation, and real estate, focusing on infrastructure and construction services. The company maintains a strong market position as a publicly listed entity on the London Stock Exchange (LSE: KIE). Its business model revolves around delivering infrastructure projects with a sustainability focus, supported by a broad portfolio of subsidiaries and partner organizations. The website highlights investor relations, sustainability initiatives, and career opportunities, indicating a growth-oriented and socially responsible business. The presence of detailed corporate governance, annual reports, and financial calendars underscores transparency and investor engagement. The company’s partnership ecosystem includes several related domains, enhancing its operational reach and service offerings.

Security posture

The website exhibits a solid security posture with HTTPS enabled and multiple security best practices such as cookie consent management, use of Google reCAPTCHA, and anti-forgery tokens. However, explicit security headers like X-Frame-Options and X-Content-Type-Options are not clearly visible in the provided data, which could be improved. No vulnerabilities or exposed sensitive data were detected in the analysis. The absence of a public security policy or incident response page and lack of a vulnerability disclosure or security.txt file are gaps in transparency and incident readiness. Overall, the security maturity is good but could benefit from enhanced public security documentation and header configurations.

Recommendations

  1. Publish explicit security headers such as X-Frame-Options and X-Content-Type-Options to enhance protection against clickjacking and MIME sniffing.
  2. Create and publish a public security policy and incident response page to improve transparency and preparedness.
  3. Implement and publicize a vulnerability disclosure program or security.txt file to encourage responsible reporting of security issues.
  4. Regularly audit third-party scripts and libraries to mitigate risks from external dependencies.
  5. Enhance monitoring and logging capabilities to detect and respond to security incidents promptly.

Contact details published on the site

Addresses
Legal name
Kier Group plc
Registration number
2708030
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Kier Group plc
Description
Kier is a leading provider of infrastructure services, construction and property developments.
Key services
Infrastructure services, Construction, Property developments
Content quality
good
Branding
consistent

Technology

Stack
jQuery 3.7.0, Swiper.js, Google Tag Manager, CookieYes cookie consent, UserWay accessibility widget, Cloudflare (implied by cookieyes and CDN usage)
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with detailed categories
  • Use of Google reCAPTCHA
  • Anti-forgery cookies (.AspNetCore.Antiforgery.*)
  • Session management cookies (PHPSESSID)

Analytics and tracking

Services
Google Analytics, Inspectlet, Hotjar
Tracking level
moderate
Privacy practices
good

Advertising

Tracking pixels
Inspectlet, Hotjar, Vimeo
Marketing tools
CookieYes, UserWay
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and multimedia
  2. Strong corporate branding and consistent design
  3. Comprehensive cookie consent and privacy compliance mechanisms
  4. Use of modern web technologies and accessibility tools
  5. No signs of phishing, malware, or suspicious content
  6. WHOIS data issue due to querying 'www.kier.co.uk' instead of 'kier.co.uk'
Technical notes

Notes

The website is built on a modern technology stack including jQuery 3.7.0, Swiper.js for sliders, Google Tag Manager for analytics and marketing, and CookieYes for cookie consent management. The CMS is likely Umbraco, indicated by specific class names and element URIs. The site is mobile optimized with responsive design and accessibility features via the UserWay widget. Performance is moderate with video content and multiple scripts, but overall user experience is smooth. SEO is supported by proper meta tags, Open Graph, and JSON-LD structured data. Hosting details are not explicit but likely use a CDN and cloud services. Technical risks are minimal but include reliance on third-party scripts which require ongoing security review.
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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