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Security report for nasuwt.org.uk

NASUWT · Education · United Kingdom

Medium risk. 5 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

66/100

Risk levelMedium

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

NASUWT is a prominent UK-based teachers' union dedicated to protecting the status and working conditions of teachers and school leaders. The website serves as a comprehensive platform offering member support, advice, training, news, and campaign information. It targets educators across the UK, providing resources tailored to different regions and professional needs. The union operates a membership-based model, emphasizing advocacy and professional development. Technically, the website employs modern web technologies including Google Tag Manager, jQuery, and Bootstrap, ensuring a responsive and user-friendly experience. The presence of cookie consent mechanisms and privacy policies indicates a commitment to GDPR compliance. Security-wise, the site uses HTTPS and secure login forms but lacks explicit security headers and incident response information. The WHOIS data is unavailable due to domain naming rules errors, but the website's content and branding strongly support its legitimacy. Overall, the site is professional, trustworthy, and well-maintained, serving a large audience in the education sector.

Scanned

NIS2 and GDPR posture

GDPR outside view
58/ 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

5 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. GDPR outside view

    These are the privacy signals visitors and data protection authorities look for under GDPR.

    • High

      No Cookie Policy found

      GDPR requires clear information about cookie usage

      What to do: Add a dedicated cookie policy explaining cookie usage and purposes

    • 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

  3. 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 nasuwt.org.uk

This scan found 25 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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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
47
Security headers
50
Email security
70
DNS health
70
Network security
100
GDPR outside view
58
Average
66

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 NASUWT holds a strong market position as one of the UK's major teachers' unions, offering a broad range of services including legal support, training, and advocacy. Its business model revolves around membership fees and providing value-added services to educators. The website reflects a mature digital presence with active social media engagement and clear communication channels. The union's focus on regional preferences and tailored content suggests a strategic approach to member engagement. While no direct revenue streams are visible, the union likely benefits from membership subscriptions and event participation. Partnerships with service providers like Pixl8 for website development indicate a professional operational approach. The absence of WHOIS data is a minor concern but does not detract from the organization's established reputation.

Security posture

The website demonstrates a solid security posture with enforced HTTPS, secure login forms, and a comprehensive cookie consent mechanism. However, the absence of key security headers such as Content-Security-Policy and X-Frame-Options represents an area for improvement. No vulnerabilities or exposed sensitive data were detected in the HTML content. The site lacks publicly available incident response or security policy documentation, which could enhance transparency and preparedness. Overall, the security measures are adequate for the site's purpose but could be strengthened to align with best practices and compliance frameworks.

Recommendations

  1. Implement security headers including Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to enhance protection against common web attacks.
  2. Publish a clear security policy and incident response plan accessible to users and stakeholders.
  3. Conduct regular audits of third-party scripts and libraries to mitigate risks from external dependencies.
  4. Enhance accessibility features to improve compliance with standards and user experience for all visitors.
  5. Maintain and update privacy and cookie policies to reflect evolving regulations and best practices.

Contact details published on the site

Addresses
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
NASUWT
Description
The NASUWT, the Teachers’ Union, works to protect the status of the teaching profession and deliver real improvements to teachers’ and school leaders’ working lives. We seek to ensure teachers are recognised and rewarded as highly skilled professionals.
Key services
Member support and advice, Training and development, Campaigns and advocacy, Legal support, Events and conferences
Content quality
excellent
Branding
consistent

Technology

Stack
Google Tag Manager, Google Analytics, jQuery, Bootstrap, Slick Carousel, Tooltipster, Magnific Popup, Modernizr, Civic Cookie Control
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • Cookie consent mechanism with granular control
  • No exposed sensitive data in HTML
  • Secure login form with password field

Analytics and tracking

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

Advertising

Ad networks
Google AdSense
Marketing tools
ShareThis
Transparency
good

Site quality

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

Key observations

  1. Website is fully accessible with rich content and navigation
  2. Strong cookie consent and privacy policy implementation
  3. Professional design and clear branding consistent with a major UK teachers' union
  4. Multiple social media and external links to reputable platforms
  5. No signs of malicious or suspicious content
  6. WHOIS data unavailable but website legitimacy is supported by content and domain usage
Technical notes

Notes

The website is built using a combination of modern JavaScript libraries and frameworks such as jQuery, Bootstrap, and Slick Carousel, providing a responsive and interactive user interface. Google Tag Manager and Google Analytics are used for tracking and analytics, integrated with a cookie consent mechanism to ensure compliance. The site loads multiple CSS and JS assets efficiently, though performance is moderate likely due to the volume of scripts and images. Accessibility is basic but could be improved. No CMS is explicitly identified, suggesting a custom or proprietary platform. Hosting details are not disclosed. Overall, the technical infrastructure supports a professional and functional website suitable for a large membership organization.
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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