Writing theheadless.dev

After weeks of writing, researching and hopefully enough proofreading, we just launched a living collection of practical guides on leveraging headless browser tools (starting with Puppeteer and Playwright) for testing, monitoring, scraping, performance measuring and more. We called it theheadless.dev. This article is about the different approaches we tried…

Read more

Improving the SSL certificate expiration alerts

We just updated our SSL certificate expiration alerting. This update gives you more control over where and when you want to receive these alerts. Before today, certificate alerts were set as part of "Alert Settings" tab, either globally or using specific settings for checks & check groups. This wasn't all…

Read more

Changelog: Opsgenie, Dashboard improvements, Terraform and more

Here is an overview of the features & fixes we released over the last ~2 months: Opsgenie integrationCheckly can now create and resolve alerts in your Opsgenie team with our dedicated integration. Opsgenie integration­čĹë ┬áRead more on how to integrate Checkly with your Opsgenie team in our docs Dashboard improvementsYou…

Read more

How we monitor Checkly (updated)

Update 29-06-2020 Last week we released the first version of our OpsGenie integration, making it easier for ourselves and our users to leverage Checkly together with the popular alerting and incident management platform. Here is how it looks like: Our plan is to put additional work into our integration to…

Read more

Post mortem: checks with async IIFE reporting success incorrectly

Between 05.06.2020-12.06.2020, checks using the async IIFE syntax had runs marked as passed when, in reality, they were not correctly executed. Impact We detected 18 active checks which were affected. Root Causes Changes related to additional security measures for Browser checks changed the default behavior of…

Read more

Post mortem: failing checks us-west-1

On 28-04-2020 from ~02:00 AM - 02:30 AM CET Checks failed to schedule due to downstream problems. Particularly the AWS SNS in the us-west-1 region seems to have been the issue. Checks were retried but still failed. This reports the check as a failure for that region. Impact…

Read more

From Bootstrapper to VC backed in three months

We just closed a $2.25M investment round led by Accel and a pack of top rate Angels. Lots to talk about, here's the itinerary: The vision.Setting goals.A timeline of events.Random learnings.On the investment round.Onwards! The visionLet's start at the end. Three months ago Checkly…

Read more