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Security report for theharleystreetclinic.com

HCA Healthcare UK · Healthcare · United Kingdom

Medium risk. 4 critical or high findings in SSL/TLS, GDPR outside view and 1 other check.

Security score

71/100

Risk levelMedium

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

HCA Healthcare UK operates The Harley Street Clinic, a leading private healthcare provider in London offering a broad range of specialist medical services including cancer care, cardiac care, neurology, orthopaedics, and women's health. The clinic is recognized for its outstanding care quality, supported by a CQC Outstanding rating and thousands of verified patient reviews. The website reflects a mature digital presence with comprehensive service descriptions and patient resources, targeting private healthcare patients both locally and internationally. Technically, the site leverages modern frameworks such as Next.js and Sitecore CMS, ensuring good performance, mobile optimization, and accessibility. Security posture is strong with HTTPS enforcement and appropriate security headers, though explicit security policy and incident response information are not publicly available. Overall, the website demonstrates high professionalism, trustworthiness, and compliance with privacy regulations, making it a reliable source for healthcare information and services.

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

4 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. 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

  3. 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 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';…

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

Keep watching theharleystreetclinic.com

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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  • 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
35
Email security
85
DNS health
70
Network security
100
GDPR outside view
68
Average
71

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

HCA Healthcare UK holds a strong market position as a large private healthcare provider with multiple hospital locations across the UK. Its business model focuses on delivering premium healthcare services through expert consultants and advanced medical technologies. The company targets affluent patients seeking private treatment options, including international clients. The integration with partner platforms like Doctify for patient reviews and a dedicated patient portal enhances customer engagement and service delivery. The presence of a CQC Outstanding rating and extensive specialist consultants underscores competitive advantages. Growth indicators include expansion of outpatient centers and pioneering treatment technologies. The company maintains a consistent brand image and leverages digital marketing and analytics tools to optimize patient acquisition and retention.

Security posture

The website exhibits a mature security posture with enforced HTTPS, comprehensive security headers, and no visible exposure of sensitive data. Use of modern JavaScript frameworks and secure form handling further strengthen defenses. However, the absence of a publicly accessible security policy or incident response contact limits transparency in security governance. No vulnerability disclosure or security.txt file was found, which could be improved to encourage responsible vulnerability reporting. Privacy compliance is well addressed with clear privacy and cookie policies and consent mechanisms aligned with GDPR. Overall, the site is secure for users but could enhance trust by publishing explicit security governance documentation.

Recommendations

  1. Publish a dedicated security policy page outlining security practices and compliance.
  2. Provide clear incident response contact information to facilitate security reporting.
  3. Implement and publish a vulnerability disclosure policy or security.txt file.
  4. Enhance transparency around data retention and privacy practices.
  5. Regularly review and update third-party scripts and tracking tools to minimize privacy risks.

Contact details published on the site

Addresses
Legal name
HCA Healthcare UK
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
HCA Healthcare UK
Description
Access fast diagnosis and personalised treatment plans for cancer, cardiac, urological and women's health conditions from world-leading consultants in London.
Key services
Cancer care, Cardiac care, Neurology and neurosurgery, Orthopaedics, Women's health, Urology, Gynaecology, Radiology and imaging
Content quality
excellent
Branding
consistent

Technology

Stack
React, Next.js, Sitecore Content Hub, YouTube iframe API, Bing Ads (bat.bing.com), OneTrust Cookie Consent
Frameworks
Next.js, Sitecore
Performance
moderate
Mobile
good
Accessibility
good
SEO
good

Security

Observed score
90/100
Good practices seen
  • HTTPS enforced
  • Use of security headers
  • No exposed sensitive data in HTML
  • Secure forms with proper input handling

Analytics and tracking

Services
Google Tag Manager
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Bing Ads
Tracking pixels
Bing Ads
Marketing tools
OneTrust Cookie Consent
Transparency
good

Site quality

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

Key observations

  1. Website is professionally designed and well-structured
  2. Comprehensive healthcare service information provided
  3. Multiple trust signals including CQC rating and verified patient reviews
  4. No signs of malicious or suspicious content
  5. Good privacy and cookie policy presence with consent mechanisms
  6. WHOIS data unavailable due to domain naming rules but domain is a subdomain of a known entity
  7. No security policy or incident response contact page found
  8. Use of modern web technologies and frameworks
Technical notes

Notes

The website is built on a modern technology stack including Next.js and Sitecore CMS, enabling dynamic content delivery and scalability. It integrates third-party services such as YouTube API, Bing Ads, Google Tag Manager, and OneTrust for cookie consent management. The site demonstrates good mobile responsiveness and accessibility features, with optimized images and structured data for SEO. Performance is moderate, with potential for improvement in loading times due to multiple external resources. No technical debt or deprecated libraries were detected. Hosting details are not explicitly disclosed but likely involve cloud infrastructure compatible with Sitecore. Overall, the technical implementation supports a robust and user-friendly healthcare portal.
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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