Welcome to the Checkly Developers Hub

The Checkly Developer Hub is your one-stop resource for the best content and docs available for E2E web app and API monitoring

From docs with love

Essentials to get you started

What’s a Browser Check?

Control a headless Chromium browser to mimic and test user behavior.

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What’s an API Check?

Monitor your APIs for performance, uptime and correctness.

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What are private locations?

Use the Checkly Agent to test your private APIs and applications.

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How should I configure my alerts?

Get quick, contextual alerts to know when your service fails—before your customers do.

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Stories and ideas

Recent blog posts

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mholt
Matt Holt
mholt
brianc
Brian C
brianc
alixaxel
Alix Axel
alixaxel
posva
Eduardo San Martin Morote
posva
gr2m
Gregor Martynus
gr2m
zkat
Kat Marchán
zkat
bep
Bjørn Erik Pedersen
bep
mafintosh
Mathias Buus
mafintosh
ljharb
Jordan Harband
ljharb
antonmedv
Anton Medvedev
antonmedv
sindresorhus
Sindre Sorhus
sindresorhus
szmarczak
Szymon Marczak
szmarczak
Akryum
Guillaume Chau
Akryum
babel
Babel
babel
vvo
Vincent Voyer
vvo
sodatea
Haoqun Jiang
sodatea
antfu
Anthony Fu
antfu
broofa
Robert Kieffer
broofa
Checkly guides

Advanced API and synthetic monitoring guides

Setup scripts for API monitoring

Setup scripts are a fundamental tool to tailor API checks to your own target endpoints. Their power and flexibility can intimidate beginners, who might struggle to understand how the different parts fit together. This guide will present and break down different real-world examples to help you master this game-changing tool.

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OpenAPI/Swagger Monitoring

OpenAPI and Swagger help users design and document APIs in a way that is readable from both humans and machines. As a consequence, they can also be used to generate the code that will run the specified API - both on the provider and consumer side. Can we leverage this same principle to simplify API monitoring? After a brief first look at OpenAPI and Swagger, this article will show how we can quickly use them to monitor a new or existing API.

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Monitoring-as-Code

The trend of declaring infrastructure as code has been picking up steam over the last few years, offering a way for DevOps teams to transparently manage and scale cloud infrastructure. Why should the way we manage monitoring be any different? In this article, we address this point and illustrate it with a practical example of Monitoring-as-Code on Checkly.

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Migrating from Puppeteer to Playwright

The switch from Puppeteer to Playwright is easy. But is it worth it? And how exactly does one migrate existing scripts from one tool to another? What are the required code-level changes, and what new features and approaches does the switch enable?

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