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Security report for tesgroup.com

TES Group · Energy · United Kingdom

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

Security score

72/100

Risk levelMedium

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

TES Group is a specialized engineering company focused on critical infrastructure solutions in the power and water sectors. They provide design, manufacturing, and maintenance services primarily for data centres and municipal water treatment facilities. The company has a strong market position with over 25 years of experience and recognized awards such as Ireland's Best Managed Company. Their website reflects a professional and modern digital presence built on WordPress with advanced SEO and marketing tools integrated. Security posture is good with HTTPS and reCAPTCHA usage, though some security headers and incident response policies are not publicly documented. The absence of WHOIS registration data is a notable concern but does not detract from the overall professionalism of the site. Strategic recommendations include enhancing privacy compliance with cookie consent, publishing security policies, and verifying domain registration status.

Scanned

NIS2 and GDPR posture

GDPR outside view
88/ 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. 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';…

  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 tesgroup.com

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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
52
Security headers
15
Email security
98
DNS health
80
Network security
100
GDPR outside view
88
Average
72

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

TES Group operates in the energy and technology sectors, targeting data centre operators and water industry stakeholders. Their business model revolves around engineering services and manufacturing of power distribution and water treatment equipment. The company leverages a strong partnership ecosystem and maintains a reputable brand with consistent messaging and quality content. Growth indicators include a comprehensive portfolio and active social media engagement. Revenue streams likely derive from project contracts, product sales, and maintenance services. The company emphasizes innovation and sustainability, as seen in their carbon zero and ethical trading initiatives.

Security posture

The website demonstrates a mature security posture with HTTPS enforcement and use of Google reCAPTCHA to protect forms. However, the lack of explicit security headers and absence of a published incident response or vulnerability disclosure policy indicate areas for improvement. No vulnerabilities or exposed sensitive data were detected in the analysis. Compliance with GDPR is suggested by the presence of a comprehensive privacy policy, but cookie consent mechanisms are missing. Overall, the security culture appears adequate but could benefit from enhanced transparency and formal policies.

Recommendations

  1. Implement and verify comprehensive HTTP security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options.
  2. Add a cookie consent banner to comply with EU cookie regulations and improve privacy compliance.
  3. Publish an incident response plan and security contact information to enhance trust and preparedness.
  4. Consider establishing a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  5. Improve website accessibility features to meet WCAG standards and broaden user inclusivity.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
TES Group
Description
TES are engineering experts specialising in critical infrastructure. We provide specialist services to water & power industries worldwide.
Key services
Power Distribution Solutions, Switchgear Manufacturing, Modular Electrical Rooms, Busduct Systems, Support & Maintenance, Water and Wastewater Treatment Engineering, Motor Control Centres, Design Build and Operate (DBO) Projects, Early Contractor Involvement (ECI) Projects
Content quality
excellent
Branding
consistent

Technology

Stack
WordPress, PHP, Yoast SEO, WPBakery Page Builder, Slider Revolution, jQuery, Google Tag Manager, Google Analytics, Google Ads, reCAPTCHA
Frameworks
Bootstrap 4
Platforms
WordPress CMS
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
80/100
Good practices seen
  • HTTPS enabled
  • Use of Google reCAPTCHA on forms
  • No exposed sensitive data in HTML
  • No visible vulnerable libraries detected

Analytics and tracking

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

Advertising

Ad networks
Google Ads
Marketing tools
Yoast SEO
Transparency
good

Site quality

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

Key observations

  1. Professional engineering services website focused on power and water infrastructure
  2. Strong branding and consistent content quality
  3. No signs of malicious or adult content
  4. WHOIS data missing or domain not registered publicly
  5. Good use of modern web technologies and SEO practices
  6. No cookie consent mechanism detected
  7. No explicit security or incident response policies published
Technical notes

Notes

The website is built on WordPress CMS using modern plugins such as Yoast SEO, WPBakery Page Builder, and Slider Revolution. It employs Bootstrap 4 for responsive design and integrates Google Analytics and Google Tag Manager for marketing and analytics. Performance is moderate with good mobile optimization. The technical stack is current and well-maintained, though hosting provider details are not disclosed. There is room for improvement in accessibility and security header implementation. Overall, the technical infrastructure supports a professional and user-friendly experience.
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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