Websites or APIs misbehaving?
Global probes watch 7×24 for you
Multi-region probing suppresses single-point noise. Manage HTTP, Ping, DNS, SSL, and domain expirations together, with delivery through the channels available to your account.
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.”
Core 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 a monitor type, target, currently available probe nodes, and one of the frequency options shown for your plan. Assertions are optional.
Parallel multi-region probing
Use multiple currently active nodes to suppress single-point noise; the selectable set comes from the live node directory.
Alert on anomalies
Only alert after N consecutive failures (debounce). Choose from the channel integrations currently available to your account.
Evidence + reports
Each probe stores latency / status / body snapshots. One-click SLA monthly report / incident PDF.
Why not just cron + curl?
52 active probe nodes
Coverage across China Telecom / Unicom / Mobile and overseas. Pick subsets to avoid single-point noise.
11 supported channel types
The adapter catalog includes email, SMS, generic webhooks, and major chat platforms. Actual availability depends on provider and account configuration.
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
Timestamped check records remain available for incident review and report generation; the UI makes no claim that every probe result is independently signed.
Create monitors on the Free tier
Start free. Upgrade when you need more monitors or higher frequencies.
- ✓Free: start with the limits currently shown in the plan catalog
- ✓Pro: higher limits and frequency options from the live plan catalog
- ✓Team: collaboration and team-level controls; see the live plan catalog for limits
Outages cost money every minute — don't wait for users to report them.
Sign up and use the Free limits currently shown in the plan catalog; no credit card required.
Sign up and create your first monitor