Web Performance Optimization

In this post, you will learn about the importance of optimizing web page loading times and how it impacts conversions, as well as why it’s critical for SEO positioning and visibility. We’ll also outline tips and strategies for improving website performance, ranging from website speed tests to image optimization, and minimizing CSS and Javascript among other techniques. Additionally, we discuss important metrics like time to first byte and the benefits of using technologies like HTTP/2 and Gzip compression. This post offers valuable insights into how to improve your website’s performance and user experience.

12.02.2025

Francisco Javier Lopera Machon

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Flutter CI/CD with Fastlane and GitHub Actions

Part 2: Releases

Let’s continue to automate the release process with versioning, GitHub releases, and promotion using Fastlane and GitHub Actions. This time we focus on setting up a new workflow that bumps the version, creates a new tag, and pushes the changes to the repository. The article also covers creating a new release with generated release notes from the commit messages and merged branches since the last tag. Finally, we will promote a release from the internal track or TestFlight to the production track in the PlayStore and AppStore respectively. All in all, this is an essential guide to streamlining the release process for your Flutter app.

27.01.2025

Dario Digregorio

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Data streaming with Confluent Kafka Connect

Kafka Connect, a solution from Confluent for transferring data to and from Kafka, provides a high-performance and scalable option for connecting to over 80 different data sources, including databases, messaging systems, REST interfaces, and cloud storage. Using Kafka Connect can save a lot of time and effort, especially if scalability and security are important to your project. To use Connect, you’ll need to understand the basic architecture, which includes Workers, Tasks and Connectors as well as how to configure them.

30.12.2024

Jürgen Huber

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Hazelcast Metrics via Prometheus

A step-by-step guide on how to collect Hazelcast metrics via Prometheus. The tutorial is aimed at those who are running a customized Hazelcast microservice, rather than the full-blown zip-file/dockers. The guide covers all the necessary steps, from adding the Prometheus dependency to Java code configuration, updating application YAML and Dockerfile, to updating the ServiceMonitor. The article also offers helpful hints and sources for further reading.

12.09.2024

Robert Danczak

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Transitioning from Prometheus to OpenTelemetry - A Journey of a Cluster's Metrics Evolution

Part 3: Enabling annotation-based scraping

After showing how to get an OpenTelemetry Collector to support Prometheus CRDs as scrape targets, we discover how to integrate another well-known approach to mark workloads as scrape targets. Now, we focus on annotation-based scraping - what is it, when would we want to use it and how can we integrate it in our OpenTelemetry stack? In this article, we provide answers to all these questions, and more.

02.08.2024

Mikel Jason Münnekhoff, Sherief Ahmed

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