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Security report for octopus.energy

Octopus Energy Ltd · Energy · United Kingdom

Low risk. 1 critical or high finding in GDPR outside view.

Security score

87/100

Risk levelLow

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

Octopus Energy Ltd is a leading UK energy supplier specializing in renewable and smart energy solutions. The company offers a wide range of services including electricity and gas supply, heat pumps, solar panels, batteries, and electric vehicle charging solutions. It is recognized as one of Britain's most awarded energy suppliers and is known for its customer-centric approach and innovative smart tariffs. The website reflects a mature digital presence with comprehensive content, modern technology stack, and strong branding consistency. Technical infrastructure includes React-based frontend, Google Tag Manager, Google Analytics, and Sentry for error monitoring, indicating a well-maintained and performance-optimized platform. Security posture is strong with HTTPS enforced and no visible vulnerabilities, though explicit security headers and a public security policy could enhance trust further. Privacy compliance is well addressed with clear privacy and cookie policies and GDPR adherence. Overall, the website and business demonstrate high professionalism, trustworthiness, and market credibility.

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

1 finding rated critical or high. Fix these first.

  1. 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

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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
100
Security headers
70
Email security
100
DNS health
85
Network security
100
GDPR outside view
68
Average
87

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

Octopus Energy operates in the energy and transportation sectors, targeting residential and business customers in the UK interested in greener and smarter energy solutions. The business model focuses on direct energy supply combined with investments in renewable energy infrastructure and innovative tariff offerings. Market positioning is strong, supported by multiple awards, high customer satisfaction ratings, and regulatory compliance. The company leverages partnerships such as Electroverse to enhance its electric vehicle charging ecosystem. Growth indicators include expansion into multiple international markets and a broad product portfolio. The company maintains a transparent and customer-friendly approach, with clear communication channels and extensive online resources.

Security posture

The website demonstrates a mature security posture with HTTPS enforced and no exposed sensitive data. Use of Sentry for error monitoring indicates proactive incident detection. However, the absence of explicit security headers like Content-Security-Policy and lack of a public security policy or vulnerability disclosure page represent areas for improvement. No incident response contacts or security-specific communication channels were found. Compliance with GDPR is evident through privacy and cookie policies. Overall, the security maturity is good but could be enhanced by publishing more detailed security documentation and implementing additional HTTP security headers.

Recommendations

  1. Publish explicit HTTP security headers such as Content-Security-Policy, X-Frame-Options, and X-Content-Type-Options to strengthen browser security.
  2. Create and publish a dedicated security policy and vulnerability disclosure page to improve transparency and incident response readiness.
  3. Add clear contact information for security incidents, including dedicated security or abuse email addresses.
  4. Regularly audit and update third-party scripts and libraries to mitigate potential vulnerabilities.
  5. Enhance user privacy controls and provide detailed data retention policies to further improve GDPR compliance.

Contact details published on the site

Addresses
Legal name
Octopus Energy Ltd
Registration number
09263424
Site observations

Automated reading of the public site. Ratings are indicative.

Business

Company
Octopus Energy Ltd
Description
Octopus Energy is a UK-based energy supplier offering cheaper, greener energy solutions including smart tariffs, heat pumps, solar panels, batteries, and electric vehicles. It is one of Europe's largest investors in renewable energy and Britain's most awarded energy supplier.
Key services
Energy supply, Heat pumps, Solar panels and batteries, Electric vehicles and chargers, Smart tariffs
Content quality
excellent
Branding
consistent

Technology

Stack
JavaScript, React (implied by React app mention), Google Tag Manager, Google Analytics, Sentry, LazyLoad, jQuery
Frameworks
React
Performance
fast
Mobile
excellent
Accessibility
good
SEO
good

Security

Observed score
85/100
Good practices seen
  • HTTPS enforced
  • No exposed sensitive data in HTML
  • Secure forms with proper input fields
  • Use of Sentry for error monitoring

Analytics and tracking

Services
Google Analytics, Sentry
Tracking level
moderate
Privacy practices
good

Advertising

Ad networks
Google Floodlight
Tracking pixels
Sentry
Marketing tools
Trustpilot
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 no blocking detected
  2. Strong focus on renewable energy and smart energy solutions
  3. Multiple trust signals including awards and customer reviews
  4. Use of modern web technologies and analytics tools
  5. No exposed sensitive information or obvious security issues
  6. WHOIS data is privacy protected but consistent with a legitimate business
Technical notes

Notes

The website uses a modern React-based frontend with asynchronous loading of scripts and lazy loading of images, contributing to fast performance and good mobile optimization. Integration with Google Tag Manager and Analytics enables detailed user behavior tracking, while Sentry provides error monitoring. The site is well-structured with proper meta tags for SEO and accessibility features such as skip links and ARIA labels. No CMS was explicitly detected, suggesting a custom or proprietary platform. Hosting provider details are not disclosed. Overall, the technical implementation is robust, performant, and aligned with best practices, though opportunities exist to enhance security headers and formalize security documentation.
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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