Infrastructure Monitoring

Go beyond HTTP. Monitor TCP ports, DNS records, Ping/ICMP reachability, and heartbeat endpoints — all from one platform.

Everything You Need for Infrastructure Monitoring

TCP port checks: Check if any port is open and accepting connections. Monitor databases (5432), Redis (6379), SMTP (25/587), SSH (22), or any custom port. Measures connection time for performance tracking.
DNS record monitoring: Verify DNS records resolve correctly. Supports A, AAAA, CNAME, MX, and TXT record types. Optionally validate against an expected value to detect DNS hijacking or misconfigurations.
Ping/ICMP reachability: Test basic host reachability with ICMP ping. Ideal for bare-metal servers, network equipment, and IoT devices.
Heartbeat/cron monitoring: Your service pings a unique URL on schedule. If a ping is missed, you get alerted. Perfect for cron jobs and background workers.
Multi-region checks: Monitors run from the US, EU, and APAC to detect regional outages and confirm failures from multiple locations.
Response time tracking: Connection times, DNS resolution times, and ping latency are tracked over time with the same charts as HTTP monitors.

Select TCP, DNS, Ping, or Heartbeat. Enter the host, port, or record type depending on the protocol.

Set your check frequency and optional expected values. Webalert runs checks from multiple regions around the clock.

If a port closes, DNS changes unexpectedly, or a host becomes unreachable, you're notified immediately.

Monitor your websites and APIs 24/7 from multiple global regions with instant alerts.

Reduce alert fatigue with anomaly detection, flap detection, and alert correlation across all monitors.

Track response times across regions and get alerted when performance degrades.

Free forever plan with 3 monitors. No credit card required. Set up in under 2 minutes.