Monitor Every Layer of Your Stack
Go beyond HTTP. Check TCP ports, verify DNS records, and test host reachability with Ping — all from the same platform that monitors your websites and APIs.
Go beyond HTTP. Check TCP ports, verify DNS records, and test host reachability with Ping — all from the same platform that monitors your websites and APIs.
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.
Verify DNS records resolve correctly. Supports A, AAAA, CNAME, MX, TXT, NS, SOA, and SRV record types. Optionally validate against an expected value to detect DNS hijacking or misconfigurations.
Test basic host reachability with ICMP ping. Ideal for bare-metal servers, network equipment, firewalls, and IoT devices. Measures round-trip latency.
All infrastructure monitors share the same alerting pipeline — incidents, notifications, escalations, and status pages work across every protocol.
Connection times, DNS resolution times, and ping latency are tracked over time with the same uptime bars and statistics as HTTP monitors.
Select TCP, DNS, or Ping. Enter the host, port, or record type depending on the protocol.
Webalert runs checks at your chosen interval, logging connection times and results from multiple regions.
If a port closes, DNS changes unexpectedly, or a host becomes unreachable, you're notified immediately.
Monitor your websites and APIs from multiple global regions with 1-minute checks and instant alerts.
Monitor cron jobs, background tasks, and CI/CD pipelines with unique ping URLs and missed-ping alerts.
Reduce alert fatigue with anomaly detection, flap detection, and alert correlation across all monitors.
Free forever plan with 3 monitors. No credit card required. Set up in under 2 minutes.