Uptime Monitoring
DownWarning continuously checks your websites, APIs, and servers using four distinct check types. The moment a check fails, you receive an alert through Slack, Telegram, Teams, Email, or a custom Webhook — so you can fix the problem before your customers even notice.
HTTP / HTTPS
Send GET or HEAD requests to any URL and validate the status code, response body, or response time. Supports custom headers, authentication, and follow-redirects.
Ping (ICMP)
Measure round-trip latency and packet loss to any hostname or IP address with ICMP echo requests. Ideal for monitoring network-level reachability.
Port (TCP)
Open a TCP connection to a specific port and verify the service is accepting connections. Perfect for databases, mail servers, game servers, and custom daemons.
DNS
Resolve DNS records and validate the returned values match your expectations. Catch propagation issues, hijacking, or misconfigurations before they impact users.
Why uptime monitoring matters
Every minute of downtime costs revenue, erodes customer trust, and damages your search engine rankings. Proactive monitoring closes the gap between an outage starting and your team knowing about it. With check intervals as low as 30 seconds and multi-channel alerting, DownWarning ensures you are always the first to know.
Start monitoring for free with up to 25 monitors on the Starter plan — no credit card required.