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[verdict][generated prompt][source: checklyhq.com]

Can I vibecode Checkly?

// buildable in a weekend, but real gaps stay open

The core loop is buildable, but a dependable replacement becomes a real weekend or multi-day project. For Checkly, run scheduled API and browser checks from one independent worker. The hard boundary is global browser fleet, playwright operations, alerting, ci integration, and support, plus independent infrastructure and reliable alerting.

confidence: medium

what it is: Run scheduled API and browser checks from one independent worker

Buildability index · an editorial game

  • Price 39 $/month weight: plus 3
  • Time multi-day weight: plus 1
  • Category monitoring no weight
  • Moat infrastructure scale · execution quality weight: minus 3
  • Confidence medium weight: zero
  • What you lose 5 items weight: minus 2
  • Site checklyhq.com (si apre in una nuova scheda) no weight
Indice: minus 1. a toss-up

They cancel out. This is where it comes down to how much the subscription annoys you.

Gioco editoriale: il verdetto dice se un agente può, l’indice se conviene.

What you build

Run scheduled API and browser checks from one independent worker, receive bounded error or log events, alert through one channel, and publish an honest status page.

what you need

  • server outside the monitored failure domain
  • PostgreSQL
  • optional ClickHouse
  • email or webhook destination
  • public HTTPS

Editorial comparison targets the Starter plan and a small independent monitoring service DIY substitute. Recheck price before merge.

The prompt

A weekend with a coding agent. The gaps that stay are right below, under “what you lose”.

One-shot prompt EN
Build a personal replacement for Checkly in an empty repository.
Use Go, PostgreSQL, ClickHouse, a Next.js 15 dashboard, and Docker Compose; do not offer alternative stacks.
The core loop is: run scheduled API and browser checks from one independent worker, receive bounded error or log events, alert through one channel, and publish an honest status page.
Make the first run work locally with one documented command.
Store all user data locally by default and make export straightforward.
Put secrets in .env, ship .env.example, and never commit credentials.
Implement HTTP, TCP, DNS, TLS-expiry, and heartbeat checks with explicit timeout and retry policies.
Run checks from one independently hosted worker and store raw results plus incident state transitions.
Send deduplicated alerts to email or one webhook destination with recovery notifications.
Create services, maintenance windows, incidents, subscribers, and a public status page.
Add bounded event ingestion for application errors with sampling and sensitive-field scrubbing.
Provide health checks, retention settings, exports, backups, and a test-alert function.
Include clear empty, loading, success, and recoverable error states.
Add input validation, safe filenames, and graceful handling of unavailable APIs.
Write focused tests for the core transformation and one end-to-end happy path.
Create a README with setup, architecture, permissions, data location, and backup steps.
Do not add accounts, billing, telemetry, analytics, or a hosted control plane.
Deliberately leave out a worldwide probe network.
Deliberately leave out phone, SMS, and managed on-call escalation.
Deliberately leave out unbounded logs, enterprise observability, and vendor-operated incident response.
Finish by running the tests and listing the exact commands used.

Prompt generated from the data on this page, not reviewed by hand yet. In English on purpose — it is the language coding agents work best in.

What you lose

  • global browser fleet, Playwright operations, alerting, CI integration, and support
  • global probe network
  • phone and SMS delivery
  • massive retention
  • advanced incident response and support

Why people still pay

People still pay for Checkly because monitoring must continue working during the exact outage it reports, which makes independent infrastructure and alert delivery the real product. The recurring cost buys probe geography, clocks, retries, deduplication, sampling, storage, paging, notification delivery, on-call rules, and its own uptime, not just the visible interface.

moat: Infrastructure scale Execution quality what a moat is

independent infrastructure and reliable alerting

Free alternatives

Not in the mood to build it? These already exist, they are free or open source, and we checked them one by one.

Rejected (1) — and why

Who has already built it

Starting from here is still vibecoding: the prompt is for when you want it exactly your way.

Do you agree?

The vote balance

Ancora nessun voto: il tuo è il primo.

Nessun voto ancora — il primo pesa.

Related apps

Distribuzione dei verdetti n = 996

YES 153 KIND OF 451 — il verdetto di questa app NOT REALLY 392

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