Terms of Service

Last updated: 16 August 2026

1. Agreement

These Terms are a contract between you and Lewis Walters, a sole trader trading as Walters Sentinel, based in the United Kingdom ("we", "us"). They govern your use of walterssentinel.com, app.walterssentinel.com and the monitoring service provided through them (the "Service").

By creating an account, or by using the Service, you accept these Terms. If you are accepting on behalf of a company, you confirm you are authorised to bind it, and "you" means that company.

If you do not accept these Terms, do not use the Service.

2. The Service

Walters Sentinel monitors websites, APIs, SSL certificates, domain expiry, DNS records, email authentication records, and blacklist status that you configure, and alerts you when a check fails. The Service reports on the availability of the things you monitor - it does not guarantee the uptime of your website, API, or any third-party infrastructure, and monitoring something does not make us responsible for its performance.

3. Accounts

• You must provide an accurate email address you control - account access and all security codes are sent there.
• You're responsible for anything that happens under your account, including team members you invite.
• You must not share login credentials, attempt to bypass verification, or access another account without authorisation.
• We may lock, suspend, or terminate accounts for breach of these Terms, abuse, non-payment, or misuse of the Service - see Section 8.

4. Acceptable use

You agree not to use the Service to monitor infrastructure you're not authorised to monitor, to facilitate illegal activity, or to probe, scan, or send unusual load at targets in a way that could reasonably be mistaken for an attack. We reserve the right to review monitors added to any account, and to remove monitors that appear to target unsafe, unauthorised, or unlawful environments, in line with our internal moderation process.

5. Fees, billing, and refunds

Nothing renews automatically. When you buy a plan you pay once, for one period, and we do not charge you again. There is no recurring subscription to cancel and no card on file being debited each month. Before your period ends we email you; if you do nothing, the plan simply expires and monitoring stops.

Prices are shown on the pricing page. Because each purchase is a separate one-off transaction, a price change can never affect a period you have already bought - it only applies if and when you choose to buy again.

If you buy again before your current period has finished, the time remaining is added to the new period rather than lost.

Payments are final and we do not give refunds - not in whole, not pro rata, and not for an unused part of a period you have already paid for. This applies however your access ends: if you stop using the Service, switch plan, delete an organization, or if we remove your account or your data under section 9. Because nothing auto-renews, you are only ever charged for a period you actively chose to buy, and you always know what it costs and when it ends before you pay.

We may suspend access for non-payment.

5A. If you are buying as a consumer

Walters Sentinel is built and sold for business use, and we expect almost every customer to be buying in the course of a business. If you are buying as a consumer - that is, wholly outside any trade, business or profession - you have additional rights that these Terms cannot take away, and section 5 is read subject to this section.

Under the Consumer Contracts (Information, Cancellation and Additional Charges) Regulations 2013 you would normally have 14 days to cancel a contract made online and receive a refund.

Because monitoring begins immediately on purchase, when you buy a plan you are expressly asking us to begin supplying the Service straight away, and acknowledging that:

• you lose the right to cancel once the Service has been fully supplied for the period you bought; and
• if you cancel within 14 days before that, you will be charged a proportionate amount for what has already been supplied, and refunded the rest.

To cancel within that window, email contact@walterssentinel.com and say so plainly. Nothing in these Terms affects your statutory rights as a consumer, including your rights under the Consumer Rights Act 2015 where a digital service is not supplied with reasonable care and skill.

6. Enterprise and White-label/MSP plans

These plans can be purchased directly through the Service without needing to contact us first. White-label/MSP customers may present the Service's monitoring and status-page features under their own branding to their own clients, but this licence doesn't transfer ownership of the underlying platform, code, or Walters Sentinel branding.

7. Service availability, and what we do not promise

We work hard to keep the Service running and to catch problems on the systems you ask us to watch. But monitoring is not a guarantee, and this section matters more than any other in these Terms, so it is written plainly.

The Service is provided "as is" and "as available". To the fullest extent the law allows, we exclude all warranties, conditions and terms implied by statute or common law, including any implied terms about satisfactory quality or fitness for a particular purpose.

We do not warrant that:

• the Service will be uninterrupted, timely, or free of errors;
• we will detect every outage, failure or degradation of your systems;
• every alert will be delivered, delivered promptly, or reach every recipient;
• our checks will always be accurate, or free of false alarms;
• certificate, domain, DNS or email-record warnings will always be raised in time, or at all.

Monitoring depends on things outside our control: the public internet, DNS, your own hosting, your mail provider's willingness to deliver our email, and the suppliers listed in our Privacy Policy. A check runs from one place at a time and cannot see everything a customer of yours might see.

Walters Sentinel is a warning system, not a substitute for your own resilience. It does not prevent outages, fix them, or reduce their consequences. You remain responsible for backups, redundancy, renewing your own certificates and domains, and for actually acting on the alerts we send. You should not rely on the Service as your only means of knowing whether your systems are working.

We offer no service level agreement and no uptime guarantee, on any plan. We may change, suspend or withdraw parts of the Service, and will give reasonable notice of anything material where we can.

7A. Things outside anyone's control

Neither party is liable for failing to perform where the cause is outside its reasonable control. That includes: failures of the public internet, DNS or third-party networks; outages at our hosting, database, email or payment suppliers; cyber attacks including denial of service; power failures; changes in law; industrial action; fire, flood, epidemic or natural disaster; and war or civil unrest.

If such an event continues for more than 30 days, either party may end the contract by written notice.

7B. Suppliers we depend on

The Service runs on suppliers named in our Privacy Policy. If one of them fails, the Service may fail with it. We choose them carefully and will act reasonably to restore service, but we are not liable for their acts or omissions beyond the limits in section 10.

8. Email retention

Email you send to contact@walterssentinel.com is stored only for as long as we need it to answer you. Every message and attachment in that mailbox is permanently deleted 15 days after it is received, whether or not it has been read or replied to. Deletion is automatic and irreversible - we cannot recover a message once it has passed 15 days, so please keep your own copy of anything you may need later. If your query needs a longer record (for example a billing dispute), tell us and we'll capture the relevant details in your account record before the mail is removed.

Email sent to noreply@walterssentinel.com is discarded the moment it arrives. It is never stored, never read, and never replied to. Always use contact@walterssentinel.com if you need a response.

9. Suspension, locking, deletion, and termination

We may lock an account automatically after repeated failed sign-in attempts, for your own security. Administrators may lock, suspend, or terminate accounts for breach of these Terms, suspected fraud, abuse of the Service, or monitoring of unsafe/unauthorised targets.

We are not required to warn you before we delete data, and we are not required to warn you while we are doing it. An organization, its monitors, and their entire check and alert history can be removed immediately and without prior notice, without a countdown, without a grace period, and without an opportunity to export or object first. Deletion is permanent and cannot be reversed - we do not keep a copy, and there is nothing for us to restore afterwards. No refund is given for any paid period remaining at the point of deletion (see section 5).

Where we take this kind of action we will email you the reason afterwards, as a courtesy rather than an obligation. You may appeal by contacting contact@walterssentinel.com, but an appeal does not pause, delay, or reverse a deletion that has already happened.

If you rely on your monitoring history, keep your own copy of anything you would not want to lose.

10. Limitation of liability

The Service is provided "as is" and "as available". To the maximum extent permitted by law, Walters Sentinel is not liable for indirect, incidental, or consequential damages, or for losses arising from downtime of infrastructure you monitor (including our failure to detect or alert on an outage). Our total liability for any claim relating to the Service is limited to the amount you paid us in the 12 months before the claim arose. Nothing in these Terms excludes liability that cannot lawfully be excluded, such as liability for death or personal injury caused by negligence, or fraud.

11. Indemnity

You agree to indemnify Walters Sentinel against claims, losses, or damages arising from your breach of these Terms or misuse of the Service, including monitoring targets you weren't authorised to monitor.

12. Governing law

These Terms are governed by the laws of England and Wales, and any dispute is subject to the exclusive jurisdiction of the courts of England and Wales.

13. Changes to these Terms

We may update these Terms from time to time. Material changes will be reflected here with an updated date. Continued use of the Service after a change means you accept the updated Terms.

14. Contact

Questions about these Terms: contact@walterssentinel.com