Know the moment your site goes down.
SentinelFlock watches your sites, login flows, and APIs from real browsers — and texts you before your customers notice.
HTTP uptime checks
Every site checked for a 200 and the text you expect on the page — down to every 2 minutes.
Real-browser monitoring
Playwright loads your page in Chromium: page-load time, TTFB, JavaScript errors, and a screenshot of every run.
Login-flow monitoring
A step-by-step builder exercises your site with a test user — fill, click, assert with regex. No code.
API monitoring
POST JSON to your endpoints and assert on status, response time, headers, and JSONPath.
Email + SMS alerts
Confirmed-down alerts in under a minute, slowness alerts on sustained threshold breaches, recovery notices with downtime totals.
Public status pages
A hosted uptime dashboard at sentinelflock.com/status/yourcompany your customers can check themselves.
Simple pricing
No trial, no surprises — pick a plan and your first check runs within a minute.