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Security report for nowerhill.org.uk

Nower Hill High School · Education · United Kingdom

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

Security score

73/100

Risk levelMedium

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

Nower Hill High School is a well-established secondary academy with a sixth form located in Pinner, UK. The website presents a professional and comprehensive digital presence, offering detailed information about the school’s academic programs, extracurricular activities, admissions, safeguarding policies, and community engagement. The school positions itself as a successful and inclusive educational institution with strong academic results and an active community focus. Technically, the website employs modern web technologies including jQuery, FontAwesome, Google Tag Manager, and accessibility tools, ensuring good performance, mobile optimization, and accessibility compliance. Security posture is solid with HTTPS enforced and cookie consent mechanisms in place, though there is room for improvement in publishing formal security policies and enhancing HTTP security headers. The WHOIS data is unavailable due to domain registration query errors, which raises some concerns about domain registration transparency, but the website content and structure strongly indicate legitimacy. Overall, the site is trustworthy, user-friendly, and well-maintained, serving its educational audience effectively.

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. 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

  2. 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';…

  3. 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

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

Keep watching nowerhill.org.uk

This scan found 22 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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  • 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
62
Security headers
65
Email security
70
DNS health
70
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

The school operates in the education sector, targeting students aged 11-18, parents, and staff within the London Borough of Harrow. Its business model is that of a public secondary academy providing comprehensive education and community services. The website highlights strong academic performance, Ofsted Outstanding certification, and a broad range of student support services. Partnerships with external platforms like ParentPay and Bromcom indicate integration with educational management systems. The school’s digital presence supports admissions, communication, and community engagement, reflecting a mature and stable institution with a medium-sized operational scale.

Security posture

The website demonstrates a good security baseline with HTTPS and cookie consent mechanisms. No exposed sensitive data or vulnerable libraries were detected in the HTML content. However, the absence of explicit security policies, incident response information, and vulnerability disclosure mechanisms suggests opportunities to enhance transparency and preparedness. The use of third-party scripts like Google Tag Manager and UserWay accessibility widget is managed with consent, aligning with privacy best practices. Security headers are not explicitly visible in the content provided, and their implementation should be verified and improved if missing. Overall, the security posture is solid but could benefit from formal documentation and additional technical controls.

Recommendations

  1. Publish a formal security policy and incident response plan accessible on the website.
  2. Implement and verify HTTP security headers such as Content-Security-Policy, X-Content-Type-Options, and Strict-Transport-Security.
  3. Consider adding a vulnerability disclosure policy or security.txt file to encourage responsible reporting.
  4. Regularly audit and update third-party scripts to mitigate potential vulnerabilities.
  5. Enhance WHOIS domain registration transparency or clarify domain registration status to improve trust.

Contact details published on the site

Addresses
Legal name
Nower Hill High School
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Nower Hill High School
Description
Nower Hill High School is a secondary academy school with a sixth form, located in Pinner in the London Borough of Harrow. It is a happy, busy, and highly successful 11-18 school focused on student achievement and preparation for future stages.
Key services
Secondary education (11-18 years), Sixth form education, Extracurricular activities, Admissions and transition support, Facility hire
Content quality
excellent
Branding
consistent

Technology

Stack
jQuery 2.1.3, FontAwesome, Google Translate, Google Tag Manager, ProgressBar.js, Owl Carousel, UserWay Accessibility Widget
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism implemented
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager with consent management

Analytics and tracking

Services
Google Analytics (via Google Tag Manager)
Tracking level
moderate
Privacy practices
good

Advertising

Transparency
good

Site quality

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

Key observations

  1. Website is a well-structured educational institution site with comprehensive information for students, parents, and staff.
  2. No signs of malicious content or phishing.
  3. Strong privacy and cookie policies with consent mechanisms.
  4. Use of modern web technologies and accessibility tools.
  5. WHOIS data unavailable, limiting domain registration trust verification.
Technical notes

Notes

The website uses a combination of jQuery, FontAwesome, Owl Carousel, and Google services for analytics and translation, indicating a modern but not cutting-edge tech stack. The CMS appears to be Cleverbox, a specialized school website platform. Performance is moderate with good mobile optimization and accessibility features including an accessibility widget. SEO is supported by proper meta tags and structured data in JSON-LD format. The site is well-structured with clear navigation and multiple content sections tailored to different user groups. Technical risks are minimal but include reliance on third-party scripts and the need for enhanced security headers.
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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