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Security report for highfive.co.uk

HIGH5 · E-commerce · United Kingdom

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

Security score

77/100

Risk levelLow

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

HIGH5 is an established UK-based sports nutrition brand with over 29 years of experience, offering a range of hydration tablets, energy gels, powdered drinks, and bars. The company targets athletes and fitness enthusiasts, positioning itself as a scientifically formulated and professional brand tested by professionals. The website is built on the Shopify platform, leveraging modern e-commerce technologies and integrating multiple marketing and analytics tools such as Google Analytics, Hotjar, Klaviyo, and Trustpilot to enhance customer engagement and trust. The site demonstrates good digital maturity with a responsive design, cookie consent compliance, and a consistent brand presentation. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, though explicit security headers and incident response information are absent. Overall, the website reflects a professional and trustworthy e-commerce operation with room for improvement in security transparency and contact information availability.

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

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 highfive.co.uk

This scan found 20 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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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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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
42
Security headers
75
Email security
85
DNS health
70
Network security
100
GDPR outside view
88
Average
77

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

HIGH5 operates in the competitive sports nutrition e-commerce sector, leveraging its long-standing brand heritage and scientific formulation claims to differentiate itself. The business model focuses on direct online sales supported by nutrition and training advice content, targeting health-conscious consumers and athletes. Integration with Trustpilot and Klaviyo indicates a focus on customer feedback and personalized marketing. The domain age and registration data corroborate the brand's claimed history, enhancing credibility. The absence of explicit contact details on the homepage suggests potential areas for improving customer support visibility. The partnership ecosystem includes major marketing and analytics providers, supporting growth and customer engagement strategies.

Security posture

The website employs HTTPS with a strong SSL configuration, ensuring encrypted communications. Cookie consent is managed via Cookiebot, reflecting GDPR compliance and user privacy respect. Multiple third-party scripts are used for analytics and marketing, which increases the attack surface and necessitates ongoing security monitoring. The lack of explicit security headers such as Content-Security-Policy and X-Frame-Options is a gap that could be exploited. No visible vulnerabilities or exposed sensitive data were detected in the HTML content. Incident response and security policy information are not publicly available, which could hinder rapid response to security incidents. Overall, the security posture is good but could be enhanced with additional headers and transparency.

Recommendations

  1. Implement and publish explicit security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to mitigate common web attacks.
  2. Create and make accessible a dedicated security policy and incident response page with contact details for reporting security issues.
  3. Enhance accessibility features to improve compliance and user experience for all visitors.
  4. Increase visibility of contact information including support emails and phone numbers to improve customer trust and service.
  5. Regularly audit and update third-party scripts to minimize vulnerabilities and ensure compliance with privacy regulations.
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
HIGH5
Description
Buy great tasting sports nutrition including hydration tablets, energy gels, powdered drinks and bars. Plus lots of useful nutrition and training advice. Over 29 years experience. Scientifically formulated. Tested by the Pros.
Key services
Sports nutrition products sales, Nutrition and training advice
Content quality
good
Branding
consistent

Technology

Stack
Shopify, jQuery, Google Tag Manager, Google Analytics, Hotjar, Klaviyo, Trustpilot widgets, Cookiebot
Frameworks
Shopify Liquid, Pickadate.js
Platforms
Shopify e-commerce platform
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent with opt-in/out
  • Use of security tokens in forms
  • No exposed sensitive data in HTML

Analytics and tracking

Services
Google Analytics, Hotjar, Klaviyo
Tracking level
extensive
Privacy practices
good

Advertising

Ad networks
Amazon Ads, Google Ads
Tracking pixels
Google Ads Conversion Tracking, Facebook Pixel, Trustpilot, Hotjar, Klaviyo
Marketing tools
Klaviyo, Trustpilot
Transparency
good

Site quality

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

Key observations

  1. Website is a professional e-commerce platform selling sports nutrition products.
  2. Strong integration with marketing and analytics tools.
  3. Compliant cookie consent mechanism implemented.
  4. No explicit contact information found on homepage HTML snippet.
  5. No visible security policy or incident response information.
  6. No terms of service page detected in provided content.
  7. Use of multiple third-party scripts increases attack surface; requires monitoring.
  8. Good domain age and registration consistency support legitimacy.
Technical notes

Notes

The website is built on Shopify, utilizing a modern tech stack including jQuery, Google Tag Manager, Klaviyo, Hotjar, and Trustpilot integrations. The site loads multiple asynchronous scripts to optimize performance and user experience. CSS and JavaScript assets are well organized and leverage CDN delivery. The site includes cookie consent management via Cookiebot, ensuring compliance with privacy laws. Performance is moderate with room for optimization, especially in script loading and accessibility improvements. The technical infrastructure is robust for an e-commerce platform but should focus on enhancing security headers and accessibility compliance to reduce technical debt and improve resilience.
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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