tabteca
Sign in
ES EN

Checkly

Synthetic monitoring for web applications and APIs.

What it is

It runs Playwright scripts on a schedule from different regions to confirm that a critical flow — login, checkout, sign-up — still works. The checks are defined as code and live in your repository.

Best for

Catching that sign-up broke even though the site "is up".

What the free plan includes

  • 10,000 API checks per month
  • 1,500 browser checks per month
  • Limited retention of results

Free plans change often. Confirm the limits on the official page before deciding.

Logtail

Centralise and query structured logs with SQL.

1 GB of logs per month

Sentry

Pick

Capture errors, performance traces and user sessions.

Free Developer plan

Open source

UptimeRobot

Pick

Availability monitoring with automatic alerts.

50 monitors checked every 5 minutes