Know your business is online before your customers do.
Walters Sentinal watches your website, SSL certificates, domain, DNS, email records and APIs around the clock — from one dashboard, instead of ten different tools.
Setup in under 5 minutes · Cancel anytime
Same dashboard, right from your desktop — download the Windows app.
Built for businesses that can't afford to find out about downtime from a customer
Right now, you're probably using ten different tools.
One for uptime. One for SSL. One for domain renewal reminders. One for email deliverability. One for DNS. None of them talk to each other, and none of them tell you the full story when something breaks.
Walters Sentinal replaces all of them with one dashboard.
Every part of your online presence, monitored continuously, with instant alerts the moment something needs your attention — before it costs you a customer.
What you're paying without Walters Sentinal
Piecing together separate tools costs more than money — it costs the time to check them all, and the gaps between them where things slip through.
| Separate tools | Walters Sentinal | |
|---|---|---|
| Uptime, SSL, domain, DNS, email, blacklist | 5–6 different logins | One dashboard |
| Typical monthly cost | £60–£150+ combined | From £19 |
| Customer-facing status page | Extra tool, extra cost | Included |
| Alerts when something breaks | Scattered across inboxes | One place, instantly |
| Setup time | Hours, across tools | Minutes |
One dashboard. Every part of your online presence.
Stop juggling tabs. Walters Sentinal checks the things that actually take businesses offline.
Website Uptime
Continuous checks from multiple locations, with instant alerts the moment your site goes down.
API Monitoring
Track the health and response times of the APIs your business and integrations depend on.
DNS Records
Get notified the moment your DNS records change unexpectedly — before it breaks email or your site.
SSL Certificates
Never let a certificate expire silently. We track expiry dates and warn you weeks in advance.
Domain Expiry
Losing a domain because you forgot to renew it is avoidable. We won't let it happen.
Email Records
SPF, DKIM and DMARC checks so your emails keep landing in inboxes, not spam folders.
Blacklist Status
Know immediately if your domain or IP gets flagged, so you can fix it before it spreads.
Response Times
Track performance over time and catch slow creep before it becomes a real problem.
Internet Outages
Distinguish "your site is down" from "the internet is having a bad day" — instantly.
Scheduled Maintenance
Plan and announce maintenance windows so alerts stay quiet when you expect downtime.
Public Status Pages
Give customers a clear, branded status page instead of a flood of support tickets.
Instant Alerts
Immediate email alerts the moment something breaks, with team routing as you grow.
Set up in minutes. Watched forever.
Add your domain
Enter your website, API endpoints and domain. Walters Sentinal handles the rest automatically.
We monitor continuously
Uptime, SSL, DNS, domain expiry and email records checked around the clock, no setup required.
You get alerted first
The moment something changes, you're notified — long before a customer ever notices.
Plans that scale with your business
No trials, no sales calls — pick a plan and buy it. Cancel anytime.
Starter
For a single site that just needs to stay up.
- 1 website monitored
- Uptime & response time checks
- SSL certificate monitoring
- Domain expiry alerts
- Email alerts
The foundation — uptime, SSL and domain covered.
Business
For growing businesses with more to protect.
- Up to 10 websites & APIs
- DNS monitoring
- Email record checks (SPF/DKIM/DMARC)
- Blacklist monitoring
- Public status pages
- Team accounts
Everything in Starter, plus DNS, email/blacklist checks, status pages and team accounts.
Enterprise
For businesses running critical infrastructure.
- Unlimited websites & APIs
- Priority alerts
- Scheduled maintenance windows
- Advanced audit reports
- Priority support
Everything in Business, plus unlimited sites, priority support and audit reports.
White-label / MSP
Resell Walters Sentinal monitoring under your own brand.
- Multi-client dashboard
- Full white-label branding
- Client billing & management
- MSP-ready audit reports
- Dedicated onboarding
Everything in Enterprise, plus multi-client management and full white-label branding.
If your business depends on being online, it's for you.
Before you start
Do I need to be technical to set this up?
No. Add a URL, tick the checks you want, and Walters Sentinal handles the rest. Most people are watching their first site within five minutes of signing up.
What happens when something goes down?
You get an email alert the moment a check fails, saying exactly what broke (uptime, SSL, DNS, domain, email records or blacklist) so you're not left guessing.
Can I monitor more than one website?
Yes — Starter covers one site, Business covers up to ten, and Enterprise and White-label/MSP are unlimited. You can upgrade at any point as you add more.
What's the difference between team accounts and White-label/MSP?
Team accounts (Business and up) let people on your own team share access to the same monitors. White-label/MSP is for agencies and IT providers managing separate clients — each client gets fully isolated monitors and their own branded status page.
Can I upgrade or downgrade later?
Yes, anytime from your dashboard. Enterprise and White-label/MSP don't require talking to sales — every plan is a direct purchase.
Is there a contract, or can I cancel anytime?
No contract, no refunds — see our Terms of Service. Plans are billed monthly and you can cancel from your dashboard at any time.
Do you store my passwords or sensitive credentials?
No. Walters Sentinal only needs the public-facing details of what you want monitored — a URL or domain. It never asks for hosting, DNS, or admin credentials.
Stop finding out about downtime from your customers.
Every plan is a direct purchase — no sales calls.
Get started