Questions
Questions and answers about NoMore404. Every check we run has its own page with more details.
Plans and price
Is there a free plan?
Yes, it is a full plan and not just a trial: you can stay on the free plan for as long as you like. It can hold up to 5 monitors, checked as often as every 5 min with 1 seat. Checks included are websites and APIs, DNS, TCP ports and Ping. The other, more complex, checks like Mail servers, SSL/TLS certificates, blocklists, heartbeats and WebSockets are only on the paid plans.
Do I need a credit card to start?
No. The free plan asks for an email address and a password, and nothing else. You are asked for a credit card when you switch to a paid plan.
What do the paid plans cost?
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 and the same confirmation from three continents; what the paid tiers buy is more locations and faster checks, not a different product.
How long do you keep the history?
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.
How the checking works
How do you avoid false alarms?
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 probes on three continents have seen it, the one that reported it and the others we ask. A failure nobody confirms is recorded, and visible, and never alerted on.
What happens if one of your own probes goes down?
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.
Where do you check from?
Four continents: Amsterdam (Europe), New York (North America), Sydney (Oceania), Singapore (Asia). A failure is confirmed from three of them before anybody is contacted. Paid plans are checked from all of them; a free account is checked from fewer and confirmed the same way.
How often do you check?
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. Certificate checks only compare a date, so we read it twice a day rather than every minute.
What can you monitor?
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. See the list of check types at the bottom of this page.
Alerts
How do I get told?
Email and webhooks on every plan. PagerDuty from Starter. Chat channels and an on-call rota from Pro, because those are a team's tools. If you are missing a channel let us know, we would consider adding it.
Will I be woken up for planned work?
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. Use this for your weekly Cluster or Node upgrades.
What if one outage takes twenty things down with it?
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.
The rest of it
Can I create a status page to show my customers?
Yes, on paid plans. It publishes the monitors you pick, with their history, at an address you can send to somebody or link from your website to. Pro lets you choose that address and Business allows 10 pages for agencies.
Can I put a status indicator on my own site?
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.
Is there an API?
Yes, on every plan, and it is the same API the interface uses. There is an OpenAPI document available, we created a command line client that is one Python file with no dependencies, and there is an MCP server so your favorite assistant can read your monitors and incidents directly.
How is this different from other uptime monitors?
Confirmation from three 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. We run checks most others do not, and everything the interface does is available over the API and MCP for easy integration.
The checks
Below is every check we offer.