Terms of Service
Last updated: 30 October 2025
Effective date: 1 November 2025
These Terms of Service ("Terms") govern your use of GuardianScan ("Service"), operated by Numen Technology Ltd ("we", "us", "our"). By accessing or using our Service, you agree to be bound by these Terms. These Terms comply with the Consumer Rights Act 2015, Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013, UK GDPR, and the Digital Markets, Competition and Consumers Act 2024.
1. Service provider
Numen Technology Ltd
Company No. 13262519
Registered in England and Wales
86-90 Paul Street, London, United Kingdom, EC2A 4NE
Contact: support@guardianscan.ai
2. Description of service
GuardianScan is an automated website audit tool that scans publicly accessible websites using browser automation technology (Puppeteer via Browserless.io) and provides reports on performance, security, accessibility, SEO, and code quality.
The Service performs over 50 automated checks across six categories: performance (Core Web Vitals, Lighthouse metrics), security (HTTPS, headers, CSP), accessibility (WCAG 2.2 Level AA), SEO (metadata, structured data), modern web practices (image optimization, caching), and code quality (console errors, HTTP analysis).
The Service performs automated checks via HTTP/HTTPS requests, captures screenshots for visual reference, and simulates mobile browsing conditions (Google Pixel 5 with 4G network throttling) to assess Core Web Vitals performance.
We do not access source code, private repositories, backend systems, or perform authenticated scanning. All checks are performed on publicly accessible pages only.
3. User accounts
3.1 Registration
To use certain features, you must create an account. You must provide accurate information and keep your account credentials secure. You are responsible for all activity under your account.
3.2 Age requirement
You must be at least 18 years old to use the Service. By creating an account, you confirm that you meet this requirement.
3.3 Account termination
We reserve the right to suspend or terminate accounts that violate these Terms or engage in fraudulent, abusive, or illegal activity.
4. Consumer rights (UK consumers)
If you are a consumer (an individual acting for purposes wholly or mainly outside your trade, business, craft, or profession), you have additional statutory rights under UK law.
4.1 Right to cancel (14-day cooling-off period)
Under the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013, you have the right to cancel your subscription within 14 days of purchase without giving any reason.
Digital content exception: If you expressly request immediate access to the Service and begin using it before the 14-day cancellation period ends, you acknowledge and agree that:
- You are requesting immediate performance of the service (supply of digital content)
- You will lose your right to cancel under regulation 37 of the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 once we have fully performed the service
- You retain all other statutory rights under the Consumer Rights Act 2015, including the right to remedies if the Service is not of satisfactory quality, fit for purpose, or as described (see section 4.2)
Monthly subscriptions: For monthly subscriptions (which automatically renew each month), you can cancel at any time via your account settings. Cancellation takes effect at the end of the current monthly billing period, and no further payments will be taken.
Annual subscriptions (if applicable): If you subscribe to an annual plan, you have a 14-day cooling-off period following any renewal that commits you to a further period of 12 months, in accordance with the Digital Markets, Competition and Consumers Act 2024. We will remind you before any such renewal with at least 30 days' notice.
To exercise your right to cancel, email us at support@guardianscan.ai. If you cancel within the cooling-off period before using the Service, we will refund all payments within 14 days.
4.2 Service quality
Under the Consumer Rights Act 2015, digital content and services must be:
- Of satisfactory quality
- Fit for purpose
- As described
If the Service does not meet these standards, you may be entitled to a repair, replacement, or refund.
4.3 Unfair terms
Under the Consumer Rights Act 2015, any unfair contract term is not binding on you. A term is unfair if it causes a significant imbalance in the parties' rights and obligations to your detriment.
5. Acceptable use
Computer Misuse Act 1990 Warning: Scanning websites without proper authorisation may constitute an offence under sections 1-3A of the Computer Misuse Act 1990 (unauthorised access to computer material). You must have permission to scan any website you submit to our Service.
You agree NOT to:
- Scan websites without authorisation from the website owner or operator
- Use the Service to perform denial-of-service attacks or overwhelm target servers
- Attempt to reverse engineer, decompile, or extract the Service's source code
- Use the Service for illegal purposes or to violate any laws
- Share your account credentials or create multiple accounts to circumvent limits
- Interfere with the Service's operation or security features
- Scrape, copy, or redistribute scan results for commercial purposes without permission
- Violate the Computer Misuse Act 1990 or any other applicable cybersecurity legislation
Your responsibility: You warrant that you have lawful authority to scan any URL you submit. We accept no liability for unauthorised scanning activities.
Enforcement: Violation of this Acceptable Use Policy constitutes a material breach of these Terms. We may, in our sole discretion and without prior notice:
- Suspend your access to the Service pending investigation
- Terminate your account immediately (see section 3.3)
- Report suspected criminal activity to relevant authorities (e.g., National Crime Agency, Action Fraud)
- Cooperate with law enforcement investigations
6. Scanning policy
6.1 Robots.txt compliance
By default, we respect robots.txt directives (RFC 9309). If a site blocks our user agent ("GuardianScan/1.0"), we will not scan it unless you explicitly bypass this check (which should only be done for sites you own or have permission to scan).
6.2 Rate limiting
Professional accounts include high-volume monthly scanning designed for regular business use, with technical rate limits of 10 scans per hour to ensure service stability for all users. This typically supports up to 7,000 scans per month based on continuous usage patterns. Free accounts receive one scan delivered via email with a 30-day token validity period.
Fair usage policy: Professional accounts are designed for regular business use. Automated bulk scanning, reselling of scan services, or usage patterns that significantly exceed typical business needs (generally above 10,000 scans per month) and degrade service performance for other users may result in temporary rate limiting with prior notice.
6.3 Your responsibility
You are responsible for ensuring you have the right to scan any URL you submit. We are not liable for any issues arising from unauthorised scanning.
7. Subscription and billing
7.1 Free tier
Free accounts receive one complimentary PDF report delivered via email with results from all 50 checks. No credit card required. The scan access token is valid for 30 days from issuance and can be used only once.
Important: Free tier provides a one-time scan to evaluate the Service. For ongoing monitoring and unlimited scans, upgrade to Professional at £24/month.
7.2 Professional subscription
Professional subscriptions cost £24/month (GBP) and provide unlimited scans, scan history, and priority support. Billing is handled via Stripe. Subscriptions automatically renew monthly unless cancelled.
Auto-renewal transparency: Your Professional subscription automatically renews monthly unless you cancel. Under the Digital Markets, Competition and Consumers Act 2024:
- Monthly subscriptions: You can cancel at any time via your account settings with no more than a few clicks. Your dashboard clearly displays your next billing date and cancellation options.
- Reminder notifications: We will send you an annual reminder email about your auto-renewing subscription, including how to cancel and manage your subscription preferences.
- Annual subscriptions (if offered): For any subscription committing you to 12+ months, we will send a reminder at least 14 days before each renewal with clear cancellation instructions, in accordance with DMCC Act 2024 requirements.
7.3 Easy cancellation
You may cancel your subscription at any time via your account settings with no more steps than reasonably necessary. You can cancel by making a clear statement that you wish to end your subscription. Cancellations take effect at the end of the current billing period.
Refund policy: You may cancel your subscription at any time, and cancellation takes effect at the end of the current billing period. We do not provide pro-rata refunds for unused days within a billing period.
Your statutory rights: Nothing in this refund policy affects your statutory rights under the Consumer Rights Act 2015. If the Service is not of satisfactory quality, fit for purpose, or as described (CRA 2015 sections 49-52), you may be entitled to remedies including a price reduction or refund regardless of when in the billing period you cancel. This includes but is not limited to:
- Significant service unavailability or downtime
- Systematic scan failures or inaccurate results
- Material features not functioning as described
- Service not being of reasonable quality considering the price paid
To request a refund based on service quality issues, contact support@guardianscan.ai with details of the issue.
7.4 Price changes
We may change subscription prices with 30 days' advance notice. Existing subscribers will be notified via email and may cancel before the new price takes effect without penalty.
8. Intellectual property
8.1 Our rights
The Service, including all software, text, graphics, and logos, is owned by Numen Technology Ltd and protected by UK and international copyright laws.
8.2 Your scan results
You retain ownership of your scan results. We store results to provide scan history and analytics, but you may delete them at any time via your account settings.
8.3 Licence to use
We grant you a limited, non-exclusive, non-transferable licence to use the Service for your personal or business use, subject to these Terms.
9. Data and privacy
We collect and process personal data as described in our Privacy Policy. By using the Service, you consent to such processing in accordance with UK GDPR.
Data retention periods
- Authenticated scan results: Retained until you manually delete them or close your account. You may delete individual scans at any time from your dashboard.
- Free scan results: Email addresses removed after 30 days. Following the 30-day retention period, scan data undergoes a comprehensive anonymisation process including removal of all direct identifiers (email addresses, user IDs, IP addresses), suppression of small cell counts (websites with fewer than 5 scans), aggregation of temporal data to monthly periods, URL domain generalisation, and addition of statistical noise. This process has been assessed to ensure re-identification is not reasonably likely, in accordance with ICO guidance. Once anonymised, the data is no longer personal data under UK GDPR and is retained indefinitely for service improvement and industry benchmarking.
- Screenshots: Stored privately with scan results. Free scan screenshots subject to the same 30-day anonymisation policy.
- Account data: Retained while your account is active. Payment records retained for 7 years after account closure for UK tax compliance (HMRC requirements).
- Free scan tokens: Expire 30 days after issuance.
- Email marketing list: Retained until you unsubscribe.
You can delete your scan history at any time via your account settings. Account deletion requests are processed within 30 days, except where we have a legal obligation to retain certain records (e.g., financial data for HMRC compliance, which must be retained for 7 years). Upon account deletion, your personal data is deleted and your scan data is anonymized (all identifiers removed).
10. Warranties and disclaimers
IMPORTANT FOR CONSUMERS: If you are a consumer (an individual acting for purposes wholly or mainly outside your trade, business, craft, or profession), nothing in this section affects your statutory rights under the Consumer Rights Act 2015. The Service must be of satisfactory quality, fit for purpose, and as described. If it is not, you have the right to remedies including repair, replacement, price reduction, or refund.
10.1 Reasonable skill and care
We will provide the Service with reasonable skill and care in accordance with industry standards for automated website scanning tools. However, as an automated service, we do not guarantee that:
- The Service will be uninterrupted or error-free at all times
- Scan results will detect all issues present on your website
- The Service will meet your specific business requirements
- All security vulnerabilities will be detected (see section 10.2)
Consumer Rights Act 2015 protection: Nothing in this section affects your statutory rights under sections 49-52 of the Consumer Rights Act 2015 (quality, fitness for purpose, description). If the Service fails to meet these standards, you may be entitled to a price reduction or refund.
10.2 Not a substitute for manual testing
GuardianScan performs automated accessibility checks against WCAG 2.2 Level AA guidelines. According to industry research (Deque Systems, 2023), approximately 57% of WCAG 2.2 issues can be automatically detected, while 43% require human evaluation.
Equality Act 2010 compliance: This Service is NOT a substitute for manual accessibility audits, user testing with assistive technologies, or legal compliance assessments under the Equality Act 2010. If you provide services to the UK public, you should commission a full accessibility audit by accredited professionals.
Similarly, our security header checks are NOT a substitute for penetration testing, vulnerability assessments, or compliance with Cyber Essentials or ISO 27001 standards.
10.3 Third-party services
We use third-party services (Browserless.io for scanning, Stripe for payments, Supabase for data storage). We are not responsible for their availability or performance.
11. Limitation of liability
Important: Nothing in these Terms excludes or limits our liability for death or personal injury caused by our negligence, fraud or fraudulent misrepresentation, or any other liability that cannot be excluded or limited under English law.
Subject to the above, to the fullest extent permitted by law, Numen Technology Ltd shall not be liable for any indirect or consequential losses, including but not limited to:
- Loss of profits, revenue, or anticipated savings
- Loss of business opportunities or goodwill
- Loss or corruption of data
- Business interruption or downtime
- Damages arising from your use or inability to use the Service
- Damages caused by errors, inaccuracies, or omissions in scan results
- Damages resulting from unauthorized scanning of third-party websites
- Third-party claims arising from your use of the Service
Liability cap for business users: If you are using the Service for business purposes, our total liability (whether in contract, tort including negligence, breach of statutory duty, or otherwise) arising out of or in connection with your use of the Service shall not exceed the amount you paid us in the 12 months preceding the claim, or £100, whichever is greater.
Consumer users: If you are a consumer (an individual acting for purposes wholly or mainly outside your trade, business, craft, or profession), the above limitation does not apply to the extent it would be unfair under the Consumer Rights Act 2015, Part 2. Where the Service fails to meet the standards required by the Consumer Rights Act 2015 (sections 49-52 - that digital content is of satisfactory quality, fit for purpose, and as described), you retain full statutory remedies including the right to a price reduction or refund. Nothing in these Terms affects your statutory rights as a consumer.
12. Indemnification
Business users only: If you are using the Service for business purposes (not as a consumer), you agree to indemnify and hold harmless Numen Technology Ltd, its directors, employees, and agents from any claims, losses, damages, or expenses (including reasonable legal fees) arising from:
- Your breach of these Terms
- Your use of the Service in violation of applicable law
- Your scanning of websites without proper authorisation
- Claims by third parties that your use of the Service infringes their rights
Consumer protection: If you are a consumer (individual acting outside your trade, business, or profession), this indemnification obligation does not apply to you. However, you remain responsible for ensuring you have authorization to scan any website you submit.
13. Service modifications
We reserve the right to modify, suspend, or discontinue the Service (or any part thereof) at any time, with or without notice. We are not liable for any modification, suspension, or discontinuation.
We may add, remove, or change features, including the number or type of checks performed.
14. Governing law and jurisdiction
Business users: These Terms are governed by the laws of England and Wales. Any disputes shall be subject to the exclusive jurisdiction of the courts of England and Wales.
UK consumers: If you are a consumer resident in Scotland, you may bring proceedings in the Scottish courts. If you are resident in Northern Ireland, you may bring proceedings in the Northern Ireland courts. Consumer rights under the Consumer Rights Act 2015 and Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 apply throughout the United Kingdom.
EU/EEA consumers: If you are a consumer in the European Union or EEA, you may also have rights under EU consumer protection laws and the Rome I Regulation (Regulation (EC) 593/2008). You may bring proceedings in the courts of your country of residence.
Online Dispute Resolution: EU consumers can access the European Commission's Online Dispute Resolution platform at https://ec.europa.eu/consumers/odr
15. Changes to terms
We may update these Terms from time to time. We will notify users of material changes via email or a notice on the Service. Continued use of the Service after changes constitutes acceptance of the updated Terms.
The "Last updated" date at the top of this page indicates when these Terms were last revised.
16. Severability
If any provision of these Terms is found to be unenforceable or invalid, that provision shall be limited or eliminated to the minimum extent necessary, and the remaining provisions shall remain in full force and effect.
17. Entire agreement
These Terms, together with our Privacy Policy, constitute the entire agreement between you and Numen Technology Ltd regarding the Service and supersede all prior agreements.
18. Contact
If you have questions about these Terms, contact us at:
Numen Technology Ltd
86-90 Paul Street
London, EC2A 4NE
United Kingdom
19. Third-party services
The Service integrates with the following third-party services:
- Browserless.io: Cloud browser automation for website scanning. Scan requests are processed via Browserless's infrastructure (see their privacy policy: https://browserless.io/privacy)
- Stripe: Payment processing for Professional subscriptions. Card data is processed directly by Stripe, not stored by us (PCI DSS compliant).
- Supabase: Database and authentication services (UK/EU data residency).
- Upstash: Queue management and rate limiting (Redis).
These third parties process data on our behalf as data processors under UK GDPR. We have data processing agreements (DPAs) in place with each processor. You acknowledge that service availability depends on these third-party providers.
By using GuardianScan, you acknowledge that you have read, understood, and agree to be bound by these Terms of Service.