You deployed the app. Now monitor the 5 things that break first.
Holter gives new apps a simple production checklist: uptime, API health, SSL, DNS/domain, and the background jobs users never see. Set them up by hand or let your coding agent propose them.
No credit card · free plan · up and watching in minutes.
Holter is adding your first monitors
The problem
Your app is live — and now what? Most newly deployed apps ship with zero monitoring. The homepage 500s at 2am, the SSL cert quietly expires, a cron stops running, and you find out from a user's DM. The hard part is not the tools; it is knowing what to watch first.
Set up in three steps
Add the first five
Start with the basics: your homepage or /health endpoint, your API, your SSL cert, your domain/DNS, and one background job.
Point alerts somewhere you'll see
Route alerts to email, Slack, Discord, or a webhook so a failure reaches you — not just a log nobody reads.
Add the rest as you grow
Publish a status page, watch a third-party dependency, or add global checks when you actually need them.
What Holter does
Holter turns "what do I monitor?" into a short checklist. The five things every deployed app should watch — is the site up, is the API healthy, is SSL valid, does DNS resolve, did the background jobs run — set up in a few clicks, or proposed by your coding agent. No observability stack to learn.
- ✓ Uptime — is your homepage or /health actually responding
- ✓ API health — status, body, and response time on your endpoints
- ✓ SSL & domain — warned days before a cert or domain expires
- ✓ DNS — know the moment your domain stops resolving
- ✓ Backups & crons — a heartbeat that alerts when a job stops running
Simple, transparent pricing
Free covers the first five basics with no card. Pro adds faster checks, more monitors, and richer alert routing as your app grows, from $15/mo.
Free plan needs no card. Every paid plan includes a 14-day free trial.
See full pricingQuestions, answered
Start with five: your homepage or health endpoint, your API, your SSL certificate, your DNS/domain, and one critical background job. Holter sets each up in a few clicks.
No. Holter checks your app from the outside, and your jobs send a heartbeat for the parts it cannot see. Nothing runs on your servers.
Yes. Connect Holter's MCP server and Claude Code or Cursor reads your repo locally and proposes the monitors — you approve them. Holter never sees your source.
No. Free covers up to 5 monitors — enough for the whole starter checklist — with no card.
You deployed the app. Now monitor the 5 things that break first.
No credit card required. Free plan available.
Start the deploy checklist