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Security report for sustainableventures.co.uk

Sustainable Ventures · Energy · United Kingdom

Medium risk. 4 critical or high findings in Security headers, GDPR outside view and 1 other check.

Security score

70/100

Risk levelMedium

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

Sustainable Ventures is a UK-based climate tech ecosystem providing investment, workspace, and venture support services to sustainable startups. Positioned as a full-service accelerator, it targets founders and investors in the climate technology sector. The website is professionally designed using Squarespace, with good mobile optimization and clear navigation. The technical infrastructure includes modern analytics and marketing tools such as Google Tag Manager, LinkedIn Insight, and Pipedrive LeadBooster. Security posture is moderate with HTTPS enforced but lacks some advanced security headers and explicit security policies. Privacy compliance is basic with a cookie banner but no visible privacy or terms pages. The domain WHOIS data is unavailable due to a registration anomaly, which reduces trust from a domain registration perspective. Overall, the site presents a credible business front but would benefit from enhanced security and compliance disclosures.

Scanned

NIS2 and GDPR posture

GDPR outside view
80/ 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

4 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 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';…

  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

  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

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

Keep watching sustainableventures.co.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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  • 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
35
Email security
75
DNS health
65
Network security
100
GDPR outside view
80
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

The company operates in the energy and technology sectors, focusing on climate tech startups. Its business model combines investment, workspace provision, and venture support, targeting sustainable startups and investors. The presence of an investor portal and design services indicates a diversified service offering. The website's external links to partner domains suggest a collaborative ecosystem. The lack of explicit contact details and company registration information limits transparency. The company appears medium-sized with a professional online presence and consistent branding.

Security posture

The website enforces HTTPS and uses standard analytics and marketing scripts. However, it lacks key security headers such as Content-Security-Policy and does not provide a security.txt or vulnerability disclosure policy. No incident response contacts or security policies are published. These gaps represent moderate security and compliance risks, especially for a company handling investment and startup data. The WHOIS anomaly further complicates trust assessment. Recommendations include implementing security headers, publishing privacy and security policies, and providing clear incident response contacts.

Recommendations

  1. Implement a comprehensive privacy policy and terms of service pages accessible from the website footer.
  2. Add a security.txt file to facilitate vulnerability disclosure and improve transparency.
  3. Configure and enforce Content-Security-Policy and other security headers to mitigate common web attacks.
  4. Publish incident response and security contact information to enhance trust and readiness.
  5. Investigate and resolve the domain registration anomaly to ensure domain legitimacy and improve trustworthiness.

Contact details published on the site

Registration number
registration number 478977209
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Sustainable Ventures
Description
Welcome to the home of Climate Tech the full service ecosystem empowering sustainable startups to scale through investment, workspaces and venture support.
Key services
Investment, Workspaces, Venture support, R&D Tax Credits, Corporate Innovation, Grant Funding, Design services, Venue hire
Content quality
good
Branding
consistent

Technology

Stack
Squarespace CMS, Google Tag Manager, LinkedIn Insight Tag, Pipedrive LeadBooster, Google Analytics (gtag.js), Typekit Fonts, Plyr video player
Platforms
Squarespace
Performance
moderate
Mobile
good
Accessibility
basic
SEO
good

Security

Observed score
65/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Use of Google Tag Manager and LinkedIn Insight for analytics

Analytics and tracking

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

Advertising

Tracking pixels
LinkedIn Insight
Marketing tools
Pipedrive LeadBooster
Transparency
basic

Site quality

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

Key observations

  1. Website is fully accessible with no blocking or WAF challenge.
  2. Content is focused on climate tech investment and startup support.
  3. No explicit privacy policy or terms of service pages found.
  4. Cookie banner present with consent mechanism.
  5. No direct contact emails or phone numbers found on main pages.
  6. WHOIS data unavailable due to domain registration error.
  7. Use of modern analytics and marketing tools.
  8. Good design and navigation with mobile optimization.
  9. No security.txt or vulnerability disclosure found.
  10. No explicit security headers beyond HTTPS detected.
Technical notes

Notes

The website is built on Squarespace CMS, leveraging modern web technologies including Google Tag Manager, LinkedIn Insight, and Pipedrive LeadBooster for analytics and marketing. The site uses Typekit fonts and Plyr for video playback. Performance is moderate with good mobile responsiveness. SEO is supported by proper meta tags and Open Graph data. Accessibility is basic and could be improved. The site lacks advanced security headers and explicit privacy and terms pages, which are important for compliance and user trust.
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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