Question 1

Is there a free plan, and what is in it?

Accepted Answer

Yes, and it is a plan rather than a trial: you can stay on it for as long as you like. It holds 5 monitors, checked as often as every 5 min, with 1 seat and 90 days of history. It checks websites and APIs, DNS, TCP ports and ping. Mail servers, SSL/TLS certificates, blocklists, heartbeats and WebSockets are on the paid plans, because they cost more to run: a single email blocklist check is fifty lookups.

Question 2

Do I need a card to start?

Accepted Answer

No. The free plan asks for an email address and a password, and nothing else. You are asked for a card when you choose a paid plan, and not before.

Question 3

What do the paid plans cost?

Accepted Answer

Starter is €10 a month, Pro is €32 and Business is €77. Paid yearly they are €9, €29 and €69 a month. They differ by how many monitors you may have (30, 100 and 300), how often they may be checked, how many people can sign in, and which alert channels are open. Every plan gets every check from four continents; none of that is held back for the expensive ones.

Question 4

How long do you keep the history?

Accepted Answer

Raw check results for 90 days on every plan, rolled up into hourly summaries. The summaries, the incidents and the record of what was sent are kept for 90 days on Free and Starter, and for a year on Pro and Business.

Question 5

How do you avoid false alarms?

Accepted Answer

One probe failing tells you about one probe, and most single failures are the network in between rather than your site. So a failure is not an outage until a second probe agrees, and that second probe has to be on a different continent and at a different hosting provider. A failure nobody confirms is recorded, and visible, and never alerted on.

Question 6

What happens if one of your own probes goes down?

Accepted Answer

Silence from a probe is recorded as no data, never as an outage. This is the failure that matters most to get right: if a dead machine of ours counted as a failure, one VPS losing its network would page every customer in that region at once, with total confidence, about sites that are perfectly fine.

Question 7

Where do you check from?

Accepted Answer

Three continents: Amsterdam (Europe), New York (North America), Sydney (Oceania), Singapore (Asia). Two hosting providers, so a confirmation is never two machines sharing one company's bad day. Every plan is checked from all of them.

Question 8

How often do you check?

Accepted Answer

As often as every 30 sec on Pro and Business, every 1 min on Starter and every 5 min on Free. You choose per monitor, and slower is often the right answer: a certificate is a date, so we read it twice a day rather than every minute.

Question 9

What can you monitor?

Accepted Answer

Ten kinds of check: https, smtp, dns, email blocklists, ssl/tls, ping, tcp port, heartbeat, domain blocklists, websocket. Each one has its own page explaining what it catches and what it cannot.

Question 10

How do I get told?

Accepted Answer

Email and webhooks on every plan, including the free one. PagerDuty from Starter. Chat channels and an on-call rota from Pro, because those are a team's tools and Pro is where teams start.

Question 11

Will I be woken up for planned work?

Accepted Answer

Not if you say so first. A maintenance window covers the monitors or groups you choose, for the time you choose, and it can repeat. During one the check still runs and the result is still recorded; it is left out of the uptime figure and nobody is alerted, because time you chose is not time you suffered.

Question 12

What if one outage takes twenty things down with it?

Accepted Answer

You are told about the cause, once. A monitor can depend on another one, and when the thing above it is already known to be down the ones below it still open incidents and still appear in the history, but nobody is paged for them. The number of alerts you did not get is shown beside the one you did.

Question 13

Can I put a status page in front of my customers?

Accepted Answer

Yes, from Starter. It publishes the monitors you pick, with their history, at an address you can send to somebody. Pro lets you choose that address and Business allows 10 pages, which is what an agency with ten clients needs.

Question 14

Can I put a status light on my own site?

Accepted Answer

Yes, once your status page is published. You get a snippet to paste into your footer: a coloured dot that says whether what is on that page is working, refreshing itself every minute, beside ordinary links that work with JavaScript switched off. It is one small script, served from our own site, and it sets no cookie and records nothing about the people who see it.

Question 15

Is there an API?

Accepted Answer

Yes, on every plan, and it is the same API the interface uses. Bearer tokens you create yourself, an OpenAPI document, a command line client that is one Python file with no dependencies, and an MCP server so an assistant can read your monitors and incidents directly.

Question 16

How is this different from other uptime monitors?

Accepted Answer

Confirmation from two other continents before anybody is contacted, rather than after somebody complains about the alert. Most monitoring sends what one machine saw and leaves you to work out whether it was real, and the cost of that is not the false alarm itself, it is that you stop believing the true ones.

问题

套餐和价格

是否有免费套餐，包含哪些内容？

开始使用需要信用卡吗？

付费套餐的价格是多少？

历史记录保存多久？

检查如何工作

如何避免误报？

如果您自己的probe宕机会发生什么？

检查来自哪里？

检查频率是多少？

可以监控什么？

通知

如何收到通知？

计划内的工作会打扰我吗？

如果一次宕机导致二十个服务中断怎么办？

其他内容

可以为客户提供status page吗？

可以在自己的网站上放置status light吗？

有API吗？

与其他uptime monitor有何不同？

检查