This is the ninth part of our 12-day Advent of Monitoring series. In this series, Checkly's engineers will share practical monitoring tips from their own experience. As a Checkly user, you’ve always had access to our two core check types: API and browser checks. API Checks are much cheaper, and therefore only run a curl-like request against the endpoint of your choice.

If you have large(r) customers, there is a point where they ask you for service-level agreements, or short SLAs. These are customer contracts defining different aspects of your service and what you guarantee for them. One common agreement is around availability, or, colloquially speaking, uptime. Your contract might state, and I am not a lawyer, that you guarantee that your service (or core parts of it) is available 99.99% of the time of a given period, mostly per month, quarter, or year.

Table of contents This is the seventh part of our 12-day Advent of Monitoring series. In this series, Checkly's engineers will share practical monitoring tips from their own experience. At Checkly, we manage various scheduled jobs, some of which play a crucial role in our application's functionality, and others exist to support different teams within Checkly.

When we’re testing our apps, it's a big headache to simulate what the user goes through while steering clear of the more problematic parts of those processes. These parts, often external and beyond our control and responsibility, are usually not the focus of our testing. Think external services, third-party modules, or APIs. Relying on these unpredictable elements for our tests is a no-go. Nor do we want to rework our tests to check internal implementations just to dodge these issues.

Table of contents As a golden rule of building a developer tool, you should always dog-food your own product. But, how does this work with a monitoring solution 🤔? Doesn’t it create a chicken and egg problem? Checkly uses multiple tools to monitor the platform, and tools from our competitors as well. However, we still dogfood our platform heavily. I believe this is mainly due to our engineers also liking the product and finding it quite easy to monitor their features.

This is the fourth part of our 12-day Advent of Monitoring series. In this series, Checkly's engineers will share practical monitoring tips from their own experience. One challenge in conducting end-to-end (E2E) testing is managing the artifacts created during the process. These artifacts are necessary for asserting specific functionalities.

This is the third part of our 12-day Advent of Monitoring series. In this series, Checkly's engineers will share practical monitoring tips from their own experience. When it comes to running self-hosted services or side projects, monitoring is key. But, who has the time to set up a complex monitoring system? We want to deliver cool software and not be busy with configuring Prometheus servers or Grafana Dashboards.

Table of contents This is the second part of our 12-day Advent of Monitoring series. In this series, Checkly's engineers will share practical monitoring tips from their own experience. We encountered a tricky issue with our public dashboards: they were experiencing sporadic outages, happening about once every two days. The infrequency and unpredictability of these outages made them particularly challenging to diagnose.

This is the first part of our 12-day Advent of Monitoring series. In this series, Checkly's engineers will share practical monitoring tips from their own experience. Hey there! Here is my take on what synthetic monitoring means and why it’s awesome! I think it’s a very complicated word for a very straightforward concept. In fact, I am convinced, that once you've used it, you will never want to live without it.

We're excited to share that Checkly has been named a 2023 Winter Intellyx Digital Innovator. This recognition resonates deeply with our Monitoring as Code (MaC) workflow and the values we uphold in delivering Checkly to cloud-native engineers, solving uptime and reliability challenges to ship with confidence.