FREE UPTIME MONITORING

Check Website Uptime — Free

WebsiteDown monitors your site around the clock and sends a status-change alert by email, Telegram, or Discord — typically within 1–5 minutes of detection. No credit card required.

Start Free Monitoring →Quick One-Off Check
Free plan: 1 monitor · 5-minute checks · Email alerts

Everything You Need to Monitor Uptime

60-second checks
Starter and Growth monitors poll your site every 60 seconds; free monitors run every 5 minutes.
Multi-channel alerts
Email, Telegram, or Discord. Status-change alerts typically arrive within 1–5 minutes of detection.
Uptime history
View daily, weekly, and monthly uptime percentages. Export CSV for SLA reporting.
HTTP status monitoring
Track specific response codes — alert if your site returns anything other than 200 OK.

What Does Uptime Percentage Actually Mean?

Most hosting providers promise 99.9% uptime — but what does that look like in practice?

Uptime SLA
Allowed downtime / year
Allowed downtime / year (min)
99%
3.65 days/year
7,300 min/year
99.9%
8.77 hours/year
526 min/year
99.95%
4.38 hours/year
263 min/year
99.99%
52.6 min/year
52.6 min/year

WebsiteDown tracks your actual uptime vs the SLA so you can hold your hosting provider accountable.

Free vs Starter

Free
$0/mo
  • 1 monitor
  • 5-minute check interval
  • Email alerts
  • 7-day uptime history
  • Manual one-off checks (unlimited)
Get started free
Starter
$4.99/mo
  • 5 monitors
  • 60-second check interval
  • Email + Telegram + Discord alerts
  • 30-day uptime history & CSV export
  • Alert delivery log
Start Starter →

Frequently Asked Questions

How often does WebsiteDown check my site?
Free monitors check every 5 minutes. Starter and Growth monitors check every 60 seconds.
Is the uptime monitor really free?
Yes. The free plan includes 1 monitor with 5-minute checks and email alerts. Starter ($4.99/mo) adds 5 monitors with 60-second checks plus Telegram and Discord alerts; Growth ($12.99/mo) raises that to 25 monitors with longer history.
What does website uptime mean?
Uptime is the percentage of time a website is accessible and responding correctly. 99.9% uptime means roughly 8.7 hours of downtime per year. 99.99% (four nines) means under 53 minutes per year. Most hosting SLAs promise 99.9% uptime.
What alert channels does WebsiteDown support?
Email alerts on the free plan. Starter and Growth plans add Telegram bot alerts and Discord webhook notifications. Alerts typically arrive within 1–5 minutes of detection.
More free tools
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DNS, TTFB, TLS timing
HTTP status checker
200 / 301 / 404 / 5xx
Bulk URL checker
Up to 20 domains at once
Uptime SLA calculator
% → real downtime
Check Website Uptime Free — Free Downtime Monitor & Alerts | WebsiteDown