Numo Pulse
Uptime and latency monitoring for your public HTTP endpoints. Numo probes them from our servers on a schedule and tells you the instant something's wrong.
How it works
- 01
Add a monitor
Enter a URL and method, pick a check interval, and test it live — response time, resolved IP, headers, and TLS — before you save.
- 02
We probe it
Numo hits your endpoint on schedule from a hardened client, recording status, latency, and the served certificate.
- 03
Get alerted
Down, slow, recovered, or an expiring certificate — your team hears about it via email, Slack, Discord, or webhook.
Features
Latency percentiles + charts
p50 / p95 response times over 30 days, a per-check response-time chart, and a status-code breakdown.
Content assertions
Require the response body to contain a string — a 200 with the wrong payload still counts as down.
Latency-degradation alerts
Set a threshold and get warned when a healthy endpoint gets slow — before it fully fails.
TLS expiry alerts
Numo reads the served certificate every probe and warns you days before it expires.
Multi-channel alerts
Email, Slack, Discord, and custom webhooks — with flap protection and rate limiting built in.
SSRF-hardened probing
Outbound checks resolve and reject internal, loopback, and cloud-metadata addresses.
Know before your users do.
Start on the free plan — no card required. Add your first monitor in under a minute.
Start free