A check for every service you run.
HTTP, ping, TCP, DNS or straight against a JSON API. Each protocol checks what matters for that kind of service, with accepted response codes and keywords per monitor.
All plans5 monitors on Free · 30 s interval on Max
Active monitors LIVE
app.example.comHTTP UP 42 ms
checkout.example.comHTTPS UP 118 ms
203.0.113.4Ping UP 9 ms
smtp.example.com:587TCP UP 31 ms
ns1.example.comDNS UP 15 ms
api.example.com/healthAPI · JSONPath UP 58 ms
Check types
One tool for every protocol.
Pick the protocol that matches the service. Every type gets multi-region confirmation and the same alerting.
HTTPWebsite, web app
HTTPSThe same check, over TLS
PINGServer, raw IP
TCPPort, network service
DNSRecords and resolution
gRPCHealth checking protocol
DBPostgreSQL, MySQL, MongoDB, Redis
APIJSON endpoint, JSONPath assertion
How it works
Live in three steps.
From URL to alert in under a minute.
01 Pick the protocol HTTP(S) for a site, TCP for a service port, ping for a raw server, or a JSON request for an API.
02 Fine-tune the check Accepted response codes and an expected keyword: not just "it responds", but "it responds correctly".
03 Get alerted Slack, email, Discord and 15 more, with escalation and a cooldown on repeated degraded alerts.
What's included
Built to avoid false alerts.
Each option tells you which plan unlocks it.
HTTP(S) & API All plans
Configurable response codes: an expected 404 or 500 won't trigger a false alert.Keyword monitoring All plans
Catches a page that returns 200 but shows an application error, or one that must not contain a word.Ping & TCP/port All plans
Raw network availability for a mail server, a database or an internal service.SSL & domain expiry Pro+
Warned before a certificate or a domain expires.gRPC Pro+
Health checks for gRPC services.Maintenance windows Max+
Mute alerts and show a notice on your status page.No. Accepted response codes are set per monitor, so an expected 404 or 500 won't raise a false alert.
Your first monitor in under a minute.
Free plan, no card. Hosted and operated in Europe.