The Checkly Blog

How we added custom languages, code completion and highlighting to the Monaco editor.

Nico Domino on Jun 10, 2021 - 7 min read

We've recently launched a brand new in-browser editor for our browser check creation experience! Browser checks are Javascript-powered Playwright/Puppeteer scripts that run on deploy or on a schedule for testing and monitoring websites and web apps. While this new experience centers around an upgraded text editor, it is much…

devops

High-frequency checks are now live!

Timo Euteneuer on May 04, 2021 - 2 min read

We just released a big change on how often you can schedule your API and Browser checks. Together with our launching customer RMS — a leading property management solution — we looked at how we can catch hiccups and errors of mission-critical apps as early as possible and get better insights on…

postmortem

Post mortem: browser checks failing to report results

Tim Nolet, Nico Domino on Mar 29, 2021 - 2 min read

A bug in our code and a gap in our error handling & alerting caused a very limited amount of browser checks — to our knowledge just one — to stop reporting results to our processing backend. Although the impact seems limited, we did a full investigation and are sharing this post…

changelog

Changelog: Reporting, deployments and many, many enhancements and fixes

Tim Nolet on Mar 23, 2021 - 3 min read

Our product & dev team has been cranking out so many small, medium and big updates the last ~2 months, we thought we'd do a comprehensive sum up. Grab some coffee ☕️ and strap yourself in: the list is quite long! New features1. ReportingWe launched the beta of Reporting! You can…

benchmark

Cypress vs Selenium vs Playwright vs Puppeteer speed comparison

Giovanni Rago on Jan 27, 2021 - 8 min read

How does Cypress compare to Puppeteer, Playwright, WebDriverIO and Selenium, speed-wise? We ran our own benchmark to find out.…

terraform

It's code! Synthetic monitoring with Terraform Cloud & Checkly

Giovanni Rago on Jan 12, 2021 - 5 min read

Combining HashiCorp Terraform Cloud and Checkly allows you to configure API and synthetic monitoring as part of your existing infrastructure-as-code setup.…

benchmark

Puppeteer vs Selenium vs Playwright, a speed comparison

Giovanni Rago on Dec 03, 2020 - 8 min read

Which one executes faster? Puppeteer, Playwright, WebDriverIO or Selenium? We ran our own benchmark to find out.…

building a saas

How we improved our Lighthouse score from 70 to 96.

Hannes Lenke on Nov 17, 2020 - 6 min read

We recently optimized the hell out of our Lighthouse score, and one of our landing pages went from a low 70s score to a cool 96 and above score.…

devops

Synthetic transaction monitoring at scale with Terraform and Checkly

Giovanni Rago on Oct 28, 2020 - 7 min read

Managing large numbers of website monitoring checks by hand quickly becomes cumbersome. Luckily, Checkly's REST API allows us to automate most of the repetitive steps. Building on that API, the Checkly Terraform Provider takes automation one step further, enabling users to specify their synthetic transaction monitoring setup as code. In…

announcements

Heads up: we are making a change to assertions for API checks

Tim Nolet on Oct 21, 2020 - 4 min read

Update: this has been released as per 13:00 CET on 11 November. We delayed it a week due to some rescheduling of other items on our roadmap. This post is to give you a heads up of a change we will release on Tuesday November 3rd that could impact…

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