Checkly Alternative: Visual Monitoring Without Writing Code
vs Checkly
Checkly is built for Playwright-based testing. Visual Sentinel gives you visual regression detection and 5 more monitoring layers, no code needed.
Six things Checkly doesn't do
(that we do).
Visual change detection
Unlike Checkly, Visual Sentinel takes screenshots of your pages and compares them against a baseline to detect visual regressions, even when the site is still reachable.
SSL & DNS monitoring
Checkly doesn't watch SSL certificates or DNS records the way we do. Visual Sentinel tracks certificate expiry, chain validation, and DNS change detection on every plan.
60-second checks
Get alerted within 60 seconds of downtime on paid plans. Combined with the six monitoring layers, you catch more issues faster than Checkly.
Alerts where you live
Email, Slack, Discord, Telegram, WhatsApp, Microsoft Teams, PagerDuty, OpsGenie, Prometheus, and webhooks. Per-monitor routing, per-severity escalation.
Server ↔ site correlation
Monitor CPU, RAM, and disk alongside your sites. When latency climbs, see whose server spiked at the same moment, no separate APM.
Editorial UX
A clean, fast dashboard built with modern tech. Dark / light mode, responsive everywhere, intuitive UX that makes Checkly feel dated.
Feature-by-Feature Comparison
Pricing Comparison
1 monitors · 5min checks
15 monitors · 5min checks
60 monitors · 1min checks
300 monitors · 1min checks
5 monitors · 10min checks
15 browser + unlimited API · 1min checks
Custom · 1min checks
Switch from Checkly
without the headache.
Start your free trial at Visual Sentinel.
Add your monitored URLs (or import from Cloudflare).
Configure alert channels (Email, WhatsApp, Slack, Discord, Telegram, PagerDuty, OpsGenie, Teams, Prometheus, webhooks).
Run both tools in parallel for a week.
Cancel your Checkly subscription.
Compare other monitoring tools
Learn what uptime checks miss
Monitor what users see
See how screenshot monitoring catches broken layouts, missing images, hidden CTAs, and reachable pages that still look wrong.
Six-layer website monitoring
Compare uptime, SSL, DNS, performance, content, and visual checks in one monitoring workflow.
Site looks broken but monitoring says fine
Learn why HTTP checks miss visual failures and how to catch silent frontend problems before visitors do.