PostShip or UptimeRobot
UptimeRobot says whether the server answers. PostShip says whether the deploy broke the sale.
Both questions are good ones. The first, UptimeRobot has been asking for 15 years, for free, on 50 addresses. The second, nobody was asking at this price.
What UptimeRobot does
The best-known uptime probe: it requests your page every 5 minutes (down to every 15 seconds if you pay) and warns you when it stops answering.
Line by line
| What you need to know | UptimeRobot | PostShip |
|---|---|---|
| The server answers (HTTP 200) | Yes | Yes |
| An interval under a minutePro Plus probes every page every 30 seconds and runs the full check at the slightest change (on top of a full pass every minute); PostShip also checks on every deploy. | Yes | Yes |
| Ping, TCP port, UDP | Yes | No |
| An expected word on the pageWith them a keyword; with PostShip the price, the button and the script, on every page of the funnel. | Yes | Yes |
| The certificate and the domain that expire | Yes | Yes |
| Phone call and SMSPostShip alerts by email, Slack or Discord. | Yes | No |
| Mobile appPostShip installs as an app from the browser. | Yes | No |
| Public status page | Yes | Yes |
| Checks the second you deploy, previews includedA probe passes at its own pace and hopes to stumble on the failure. | No | Yes |
| The price, the button, the payment script are actually on the pageA dead checkout answers 200 like the others. | No | Yes |
| The checkout journey, replayed in order | No | Yes |
| The domain actually serves the new build (CDN cache, alias, DNS) | No | Yes |
| A deploy that breaks is withdrawn, by hand or on its ownVercel, through the integration. | No | Yes |
| The share image, indexability, the sitemap | No | Yes |
| The monthly report sent to your clients | Not found on their site | Yes |
| Interface, alerts and support in French and English | Not found on their site | Yes |
What it costs
Their prices, recorded on October 6, 2026 on their pricing page, excluding VAT. Ours are those of the pricing page, to the day.
Free
UptimeRobot · 50 monitors, every 5 min, no card
PostShip · 5 URLs, 1 project, every 5 min, no card
A freelancer
UptimeRobot · Solo €10/month — 10 monitors, every 60 s (€22/month for 50)
PostShip · Pro €19/month — 25 URLs, 3 projects, every 2 min
A team
UptimeRobot · Team €41/month (€35 billed yearly) — 100 monitors, every 30 s
PostShip · Pro Plus €49/month — 100 URLs, 10 projects
Which one to choose
UptimeRobot is the right choice if
- You want to know that a server, an IP or a port went down, to the minute.
- You monitor 50 addresses and don't want to pay anything.
- You want to be called on the phone, not just notified.
PostShip is the right choice if
- You deploy several times a week and that's where things break.
- Your site sells something: the pricing page, the checkout, the login form are what needs watching.
- You want a failed deploy withdrawn before the first customer sees it.
Both, often. Many keep UptimeRobot for free for the server and take PostShip for the deploy. The 2 don't step on each other: one watches the machine, the other the page.