Websites or APIs misbehaving?
Global probes watch 7×24 for you
Multi-region probing rules out single-point noise. HTTP / Ping / DNS / SSL / domain expiry in one panel — incidents hit your phone within 60 seconds.
What idcd watches
Standing watch on the network so you don't have to.
Website availability
Homepage / landing / critical flows probed from multiple regions. Cert expiry, domain expiry, and missing keywords also alert — ops and marketing stay calm.
“Shanghai / Hong Kong / Frankfurt all return 200; three consecutive failures anywhere triggers SMS.”
API health
REST / GraphQL / Webhook outbound monitoring with status code + body keyword + latency threshold assertions. Pipe into CI before deploys, too.
“/health returns 200 with body containing 'ok' and p95 < 800ms; otherwise Feishu + Webhook.”
Multi-region / carrier comparison
Compare latency from China Telecom / Unicom / Mobile / overseas to the same target. Pin down the “users say slow, ops sees nothing” class of disputes.
“Beijing Telecom vs Shanghai Unicom vs HK PCCW probing idcd.com simultaneously — output a heatmap.”
9 monitor types, full-stack coverage
From ICMP up to SSL / domain expiry, email blacklists, and cron heartbeats — all in one panel.
Assertions on status code + body keyword + latency threshold. 5xx, timeouts, certificate errors all caught.
ICMP latency, packet loss, jitter — the simplest connectivity test.
Liveness probe for databases, Redis, self-hosted services. Prevents “:80 works, :3306 doesn't” surprises.
Verify A / AAAA / CNAME records — guard against hijacks and cache poisoning.
Remaining days, issuer, CN checks — tiered alerts 30 / 14 / 7 days out.
Weekly WHOIS sweep. Renew before expiry so “forgot to renew” never bites.
Missing keywords in HTML (e.g. the “Buy” button vanished) also alert — stricter than HTTP 200.
Watch whether your mail server IP lands on a DNSBL blacklist — get warned before mail bounces or hits spam.
Reverse check-in monitoring: your cron / backup / ETL pings a unique URL on success; miss the window and it alerts (dead man's switch).
Building AI agents? See LLM / Tool API / RAG monitors →
From create to alert in 4 steps
No learning curve. First monitor up in 3 minutes.
Create the task
Pick monitor type, target, probe nodes, and frequency (1m / 5m / 30m). Assertion conditions optional.
Parallel multi-region probing
Three probes by default to suppress noise. Up to 30+ probes globally if you opt in.
Alert on anomalies
Only alert after N consecutive failures (debounce). Email / SMS / Webhook / Feishu / DingTalk supported.
Evidence + reports
Each probe stores latency / status / body snapshots. One-click SLA monthly report / incident PDF.
Why not just cron + curl?
30+ global probes
Coverage across China Telecom / Unicom / Mobile and overseas. Pick subsets to avoid single-point noise.
5 alert channels
Email / SMS / Webhook / Feishu / DingTalk. Rotation and escalation policies supported.
Visual history
Every sample replayable, sliced by node / time window. p50 / p95 / p99 at a glance.
Open API + Webhooks
Stream probe results into your stack — Grafana, custom SRE dashboards, you name it.
AI incident summaries
Anomalies auto-summarized by LLM (DNS poisoning, packet loss, cert expiry, etc.).
Tamper-evident logs
Each probe carries a timestamp + node signature — usable for SLA claims or incident postmortems.
Create monitors on the Free tier
Start free. Upgrade when you need more monitors or higher frequencies.
- ✓Free: 5 monitors / 5-min frequency / 3 nodes / email alerts
- ✓Pro: 50 monitors / 1-min frequency / all nodes / 5 alert channels
- ✓Team: unlimited monitors / 30-second frequency / collaboration / SSO + audit
Outages cost money every minute — don't wait for users to report them.
Sign up and create 5 monitors free; email alerts work immediately, no credit card.
Sign up and create your first monitor