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Web Vitals monitoring with CrUX and real user data

Combine network flow, device, cloud, and synthetic telemetry to investigate traffic and service performance.

Run manual and automated mobile-app tests against selected cloud or team-managed devices.

Preparation packs for employment assessments, aptitude tests and employer-specific selection tasks.

Speed up Bazel builds with remote execution, caching, and a build-results interface.

A Python property-based testing library that generates inputs to challenge the properties your code should preserve.

A local API-mocking desktop app and CLI for replacing live services during development and tests.

A command-line tool for sending HTTP requests and asserting the responses as repeatable tests.

Build Python web applications by pairing a small request-and-route core with the extensions your project needs.

A proxy-based API simulator that records traffic for repeatable tests without calling the real service each time.

A PHP testing framework for unit tests, assertions, exceptions, and other application behavior.

Automates Kubernetes canary and blue-green rollouts using traffic analysis and validation checks.

Measure how well JavaScript and TypeScript tests detect deliberately introduced code changes.

Check website and server availability from external locations and alert a team when a test fails.

Run repository builds, tests, and release steps in workflows defined by CircleCI configuration.

Model Kubernetes builds, deployments, tests, and local development as a dependency-aware action graph.

Write and run JavaScript end-to-end tests across local browsers and remote grids.

A Go library for verifying infrastructure code by deploying it, checking behavior, and cleaning up resources.

Run mobile automation suites on real Android and iOS devices in BrowserStack's cloud.

Develop Python in a project-aware desktop IDE with a debugger, test runner, and optional coding-agent tools.

Test Kotlin behavior with specification styles, assertions, and property-based checks.

Elixir's built-in unit-testing framework for test cases, assertions, callbacks, and doctests.

Collect automated test results in one place and analyze failures across test runs.

Build functional, security and performance tests for APIs, then automate the runs in CI.