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Security report for powerstar.com

Powerstar · Energy · United Kingdom

Medium risk. 3 critical or high findings in Security headers, SSL/TLS and 1 other check.

Security score

70/100

Risk levelMedium

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

Powerstar is a well-established commercial energy solutions provider based in the United Kingdom, founded in 1997. The company specializes in voltage optimization, low-loss transformers, battery energy storage systems, and related services such as feasibility studies and advanced modeling. Their market position is supported by a professional website, accreditations, and a clear focus on commercial and industrial energy users. The website demonstrates a mature digital presence with integrated marketing and analytics tools including HubSpot, Google Analytics, and LinkedIn Insight Tag. The technical infrastructure is based on WordPress with Elementor and Yoast SEO, hosted on UK-based CloudHosting servers. Security posture is good with HTTPS enforced and cookie consent implemented, though there is room for improvement in security headers and incident response transparency. Overall, the website is professional, trustworthy, and compliant with basic privacy standards, though explicit privacy and terms of service documents were not found in the provided content.

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

3 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 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

  3. Network security

    Services reachable from the internet are the first thing attackers probe. Anything open that does not need to be should be closed.

    • High

      High-Risk Service Exposed: FTP

      Port 21 (FTP) is publicly accessible - FTP - Often unencrypted file transfer

      What to do: Consider restricting access to FTP or implementing strong authentication

      • NIS2 21(2)(e)
      • IR 2024/2690 6.7.2(f): Implementing Regulation (EU) 2024/2690, Annex point 6.7.2(f): Network security
      • NIST CM-7: NIST SP 800-53 Rev. 5 CM-7: Least Functionality
      • NIST SC-7: NIST SP 800-53 Rev. 5 SC-7: Boundary Protection

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

Keep watching powerstar.com

This scan found 16 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.

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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
67
Security headers
60
Email security
85
DNS health
85
Network security
20
GDPR outside view
100
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

Powerstar operates in the energy sector with a B2B business model targeting commercial and industrial clients seeking energy efficiency solutions. Their product portfolio includes voltage optimization technologies, various types of transformers, and battery energy storage systems. The company leverages digital marketing and content strategies such as blogs, webinars, and white papers to engage their audience. The domain age and WHOIS data confirm a longstanding presence, enhancing credibility. The company maintains active social media channels on LinkedIn, Twitter, and YouTube, supporting brand visibility and customer engagement. Accreditations and certificates are prominently featured, reinforcing trust. The business model appears focused on providing both products and ongoing service and maintenance, indicating recurring revenue streams and customer retention strategies.

Security posture

The website employs HTTPS with a valid SSL certificate, ensuring encrypted communications. Cookie consent mechanisms comply with GDPR requirements, offering users control over tracking preferences. However, no explicit security headers such as Content Security Policy or HSTS were detected, which could enhance protection against common web attacks. No vulnerability disclosure or incident response information is publicly available, which is a gap in transparency and readiness. The use of multiple third-party scripts for analytics and marketing introduces potential risk vectors that should be regularly audited. No exposed sensitive data or obvious vulnerabilities were found in the HTML content. Overall, the security posture is moderate with good foundational practices but opportunities for strengthening.

Recommendations

  1. Implement comprehensive security headers including CSP, HSTS, X-Frame-Options, and X-XSS-Protection to enhance web security.
  2. Publish a clear privacy policy and terms of service pages accessible from the homepage to improve compliance and user trust.
  3. Establish and publicize a vulnerability disclosure policy or security.txt file to facilitate responsible reporting of security issues.
  4. Enhance accessibility features to meet WCAG standards, improving usability for all users.
  5. Regularly audit and update third-party scripts and plugins to mitigate risks from vulnerable libraries.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Powerstar
Description
Manage power more efficiently with Powerstar Commercial Energy Solutions: Voltage Optimisation, Low-Loss Transformers & Battery Energy Storage Systems
Key services
Voltage Optimisation, Low-Loss Transformers, Battery Energy Storage Systems, Service and Maintenance, Feasibility Studies, Advanced Modelling & Simulation
Content quality
good
Branding
consistent

Technology

Stack
WordPress, Elementor, Yoast SEO, HubSpot scripts, Google Tag Manager, Google Analytics, LinkedIn Insight Tag, Vimeo Player API
Frameworks
Yoast SEO, Elementor
Platforms
WordPress
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
75/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data found in HTML

Analytics and tracking

Services
Google Analytics, HubSpot Analytics, LinkedIn Insight Tag
Tracking level
moderate
Privacy practices
basic

Advertising

Ad networks
HubSpot Ads
Tracking pixels
HubSpot Analytics, LinkedIn Insight Tag, Google Ads
Marketing tools
HubSpot
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured.
  2. Cookie consent mechanism is implemented with detailed preferences.
  3. No explicit privacy policy or terms of service pages found in the provided content.
  4. Contact information includes a phone number and a contact page link but no direct email addresses found.
  5. Multiple marketing and analytics scripts are used, indicating active user tracking.
  6. No security.txt or vulnerability disclosure information found.
  7. Accreditations and certificates are highlighted, supporting trust.
  8. Social media presence is linked for LinkedIn, Twitter (x.com), and YouTube.
  9. No signs of adult or questionable content.
  10. No WAF or blocking mechanisms detected.
Technical notes

Notes

The website is built on WordPress CMS using the Elementor page builder and Yoast SEO plugin, indicating a modern and flexible content management approach. Hosting is provided by CloudHosting UK, with domain registration through GoDaddy.com, LLC. The site integrates multiple marketing and analytics tools including HubSpot, Google Tag Manager, Google Analytics, and LinkedIn Insight Tag, reflecting a mature digital marketing infrastructure. Performance is moderate with asynchronous loading of scripts and optimized CSS delivery. Mobile optimization is good with responsive design elements. The site uses structured data (JSON-LD) for SEO enhancement and social media integration via Open Graph and Twitter Card metadata. Technical debt appears low, but security header implementation and privacy documentation could be improved to reduce risk and enhance compliance.
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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