Uptime monitoring that respects you and your target.
Uptime monitoring tells you the moment a service you run stops responding. PingDog does it for the whole stack — websites, APIs, ports, DNS, TLS certificates, blockchain RPC, AI agents and MCP servers — with no account, no subscription, and a price you pay by the check.
What uptime monitoring actually is
Uptime monitoring is the practice of checking, on a schedule, whether a service is reachable and healthy — and being told the instant it is not. Instead of finding out from an angry customer that your site has been down for two hours, a monitor probes it every minute (or every five seconds) from outside your own network and raises an alert the moment a check fails.
The value is entirely in catching the failure you didn't see: an expired TLS certificate, a database that stopped accepting connections, a deploy that quietly started returning 500s, an RPC node that fell behind the chain. A good monitor turns "we had no idea" into "we knew within a minute."
Monitoring the whole stack, not just a homepage
"Is the website up?" is only the first question. PingDog runs the same probe-on-a-schedule engine against every layer you actually depend on:
| Check | What it confirms | Detail |
|---|---|---|
| HTTP / HTTPS | Status code, response time, body match | Website & API monitoring |
| TCP port | Port open, connect time | TCP port monitoring |
| DNS | Resolution, resolved records | DNS monitoring |
| SSL certificate | Validity and days to expiry | SSL certificate monitoring |
| Blockchain RPC | Block height, sync, staleness | RPC node monitoring |
| A2A agent | Agent-card discovery + ping | A2A agent monitoring |
| MCP server | Connect + tools/list | MCP server monitoring |
Why anonymous, pay-per-check monitoring wins
Traditional uptime monitors were built around accounts and subscriptions: you sign up, hand over an email and a card, pick a monthly plan, and hope you sized it right. PingDog throws all of that out.
- No account. Your access is an opaque key — the key is the account. No sign-up, no email required, no KYC.
- No subscription. You pay once, up front, for exactly the checks you configure, at $0.0005 each in USDC on Base. Nothing renews and there is nothing to cancel.
- No card needed. Payment is a stablecoin, which means anyone can buy — including the many customers who have no Visa or Mastercard.
- Nothing kept about you. No name, no location, no IP logs. Detail decays to a hashed aggregate and then to nothing, the access key included.
Read the full contrast on anonymous vs. traditional monitoring, or the head-to-head with a subscription monitor like UptimeRobot.
Proof of work you can verify
A monitoring service has a trust problem: a working-but-silent monitor and a fake one look identical — both report nothing. PingDog resolves it by selling the checking, not just the catching. Every check is counted, timestamped and charted; your dashboard headline is a live check count, uptime percentage and latency trend, never an empty screen. The delivered-check count is a verifiable, signed record you can check against our public key — the receipt for the vigilance you paid for.
Safe to point at a busy service
Because of poll-once-fan-out, no matter how many customers watch the same target, PingDog runs one probe stream and fans each result out to everyone due for it. The target sees a single probe stream regardless of customer count, so monitoring through PingDog can never become a customer-multiplied load against it. See how the mechanism works →