Uptime Checker
Monitor website uptime and get instant email alerts when your site goes down or recovers
Sign in to set up monitoring
Get instant email alerts when your website goes down or comes back online.
Enter a URL to get a full website analysis
DNS lookup · TCP connect · TLS handshake · Time to first byte · Download time
Monitor your website 24/7 and get instant email alerts when it goes down or recovers. Checks every 5 minutes from our infrastructure — free basic monitoring with no time limits.
What counts as "down"?
- HTTP 5xx server error response.
- Connection timeout (no response within 30 seconds).
- DNS resolution failure.
- Connection refused or reset by the server.
- SSL certificate handshake failure.
Why uptime monitoring matters
If your website is down for 1 hour during peak business hours, you can lose revenue, search rankings, and customer trust. Most outages happen silently — the first time you hear about it is often from an angry customer. Proactive monitoring lets you fix issues before they spread.
Frequently asked questions
How often is my site checked?
Every 5 minutes, 24/7.
Is it really free?
Yes, basic uptime monitoring with email alerts is completely free.
What counts as down?
HTTP 5xx errors, timeouts (>30s), DNS failures, connection refused, or SSL handshake errors.
Can I monitor multiple websites?
Yes — add as many URLs as you like from one dashboard.