What is 6-layer website monitoring?

Visual Sentinel monitors 6 layers: Uptime (is your site reachable), Performance (Core Web Vitals), SSL (certificate expiry and chain issues), DNS (record changes and hijacking), Visual (pixel-level screenshot comparison), and Content (text and markup change tracking). Most monitoring tools only check uptime.

How is Visual Sentinel different from Pingdom or UptimeRobot?

Pingdom and UptimeRobot primarily check if your server responds. Visual Sentinel adds visual regression detection, SSL certificate monitoring, DNS change tracking, and Core Web Vitals — catching problems that return HTTP 200 OK but show a broken page to visitors.

Do I need to install anything?

No. Visual Sentinel monitors externally — just paste your URL. No code changes, no agents, no browser extensions required. Setup takes under 60 seconds.

How fast are the alerts?

Alerts are delivered within minutes of detection via your choice of Email, Slack, Discord, WhatsApp, Telegram, or custom webhooks. Each alert includes screenshots and diagnostic data.

Is there a free plan?

Yes. The free plan includes 1 monitor with all 5 monitoring layers enabled. No credit card required. Paid plans start at $9/month for additional monitors and features.

What notification channels are supported?

Visual Sentinel supports Email, Slack, Discord, WhatsApp, Telegram, and custom webhooks. You can configure multiple channels per monitor so your entire team stays informed.

Is This Website Down Right Now?

Enter any URL to instantly check if a website is up or down. Free, no signup required.

Instant Results

Check any website's status in seconds. We test connectivity, response time, and HTTP status code.

SSL Quick Check

Every check includes a quick SSL certificate validation so you can see if HTTPS is working correctly.

No Signup Required

Use this tool as many times as you need. No account, no email, no credit card.

Need Continuous Monitoring?

Check once is good. Monitoring 24/7 is better. Get alerts in under a minute when your site goes down.

Learn about uptime monitoring