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Security report for tarmac.com

Tarmac · Transportation · United Kingdom

Low risk. 2 critical or high findings in SSL/TLS.

Security score

80/100

Risk levelLow

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

Tarmac is a leading UK-based construction materials and solutions provider specializing in aggregates, concrete, cement, asphalt, and related services. The company serves a broad range of construction and infrastructure projects nationwide, positioning itself as a key player in the transportation and manufacturing sectors. The website reflects a mature digital presence with comprehensive product and service offerings, including logistics, contracting, and innovation initiatives. Technically, the site is built on WordPress with modern plugins and APIs, delivering a professional and responsive user experience. Security posture is strong with HTTPS enforcement and anti-clickjacking measures, though explicit security policies and incident response details are not publicly available. The absence of WHOIS registration details is a notable anomaly but does not detract from the overall legitimacy of the site. Strategic recommendations include publishing detailed privacy and security policies and enhancing accessibility features to further strengthen trust and compliance.

Scanned

NIS2 and GDPR posture

GDPR outside view
100/ 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

2 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

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

Keep watching tarmac.com

This scan found 17 issues across 5 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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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
37
Security headers
75
Email security
85
DNS health
85
Network security
100
GDPR outside view
100
Average
80

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

Tarmac operates primarily in the construction and transportation sectors, offering a wide range of building materials and services. Its business model focuses on B2B supply and contracting services, supported by a network of subsidiaries and partner brands such as Pozament and National Road Planing. The company targets construction professionals and businesses requiring high-quality materials and innovative solutions. The website's structured data and SEO optimization indicate a focus on digital marketing and customer engagement. The presence of customer portals and career pages suggests a well-rounded approach to stakeholder interaction and talent acquisition. Market positioning is strong within the UK, with sustainability and innovation highlighted as key strategic pillars.

Security posture

The website demonstrates a solid security foundation with HTTPS enabled and anti-clickjacking scripts in place. Cookie consent mechanisms comply with GDPR requirements, indicating attention to privacy regulations. However, the lack of publicly available security policies, incident response contacts, and vulnerability disclosure channels limits transparency. No critical vulnerabilities or exposed sensitive data were detected in the analyzed content. The security score is good but could be improved by publishing formal security documentation and adopting a security.txt file for vulnerability reporting. Overall, the security posture is adequate for a large enterprise but has room for enhancement in transparency and incident readiness.

Recommendations

  1. Publish a comprehensive privacy policy and terms of service pages accessible from the homepage.
  2. Add a dedicated security policy and incident response contact information to improve transparency.
  3. Implement a vulnerability disclosure program with a security.txt file to encourage responsible reporting.
  4. Enhance website accessibility features to meet WCAG standards and improve user experience for all visitors.
  5. Regularly audit and update security headers and cookie consent mechanisms to maintain compliance and security.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Tarmac
Description
High-quality construction materials and solutions from Tarmac, supporting a wide range of projects nationwide with aggregates, concrete, cement, asphalt, and more.
Key services
Aggregates supply, Concrete supply, Cement supply, Asphalt supply, Highway services, Contracting, Logistics, Supply chain solutions, Concrete delivery, Civil engineering
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, Yoast SEO plugin, Slider Revolution, jQuery, Lodash, Handlebars.js, Google Maps API
Frameworks
WordPress
Platforms
Web
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Anti-clickjacking script present
  • Cookie consent mechanism implemented

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Marketing tools
Yoast SEO
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Content is rich and relevant to construction industry.
  3. Strong use of structured data and SEO best practices.
  4. No explicit contact emails or phone numbers found in the provided HTML snippet; contact form is present.
  5. Cookie consent and GDPR compliance mechanisms are implemented.
  6. No explicit privacy policy or terms of service URLs found in the snippet.
  7. WHOIS data is missing or not found, which is unusual for a large enterprise website.
Technical notes

Notes

The website is built on WordPress CMS, leveraging popular plugins such as Yoast SEO and Slider Revolution for SEO and visual content management. It uses modern JavaScript libraries including jQuery, Lodash, and Handlebars.js, and integrates Google Maps API for location services. The site demonstrates good mobile optimization and SEO practices, with structured data implemented via JSON-LD for enhanced search engine understanding. Performance is moderate, with room for optimization in loading speed and accessibility. Hosting details are not explicitly identified, but the use of Azure Blob Storage for media assets suggests cloud hosting infrastructure. Technical risks are minimal, with no outdated or vulnerable libraries detected in the provided data.
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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