QA Metrics
Most engineering teams track too few QA metrics (just pass/fail) or too many (every metric their CI tool exposes). This post identifies the five metrics that actually predict QA health, explains what each one tells you, and gives you targets and measurement approaches for each. Key Takeaways * Test coverage
Cross-Browser Testing
CSS looks different in different browsers. Safari lags on newer features. Firefox interprets certain specifications differently from Chrome. Internet Explorer is thankfully gone, but Edge, Safari, and Firefox all have their own quirks. This guide covers the most common cross-browser CSS issues, the tools that catch them, and the techniques
Cross-Browser Testing
Selenium Grid lets you run tests across multiple browsers and machines in parallel by routing test commands from a central hub to registered browser nodes. Grid 4, the current version, supports standalone mode, hub/node mode, and fully distributed mode. Docker Selenium makes spinning up a cross-browser grid trivial. This
Cross-Browser Testing
Safari is the hardest browser to automate. Its WebDriver implementation is more restrictive than Chrome or Firefox, it can only run on macOS and iOS hardware, Apple Silicon introduced new compatibility issues, and the WebKit engine has quirks that no other browser shares. This guide covers the specific challenges of
Cross-Browser Testing
Playwright is the most capable cross-browser testing framework available in 2026. It ships with bundled Chromium, Firefox, and WebKit engines, runs the same tests across all three without modification, and executes them in parallel by default. This guide covers everything from initial setup to CI configuration and handling browser-specific behavior.
Cross-Browser Testing
BrowserStack and LambdaTest are the two dominant cloud browser testing platforms. BrowserStack has the largest real-device lab, the most mature enterprise integrations, and the highest price tag. LambdaTest is faster for parallel execution, significantly cheaper, and has closed most of the feature gap in the last two years. This comparison
Cross-Browser Testing
Cross-browser testing verifies that your web application looks and behaves correctly across different browsers, operating systems, and devices. With Chrome, Safari, Firefox, and Edge each rendering pages differently, skipping cross-browser testing means real users hit bugs you never saw. This guide covers what to test, which browsers matter, and how
UX Testing
Usability testing for SaaS products requires different approaches than consumer app testing. SaaS products are complex, often B2B, serve multiple personas within the same account, and have long user journeys that don't fit neatly into a 45-minute session. The highest-leverage areas to test are onboarding (where churn concentrates)
Testing
DOM snapshots catch structural changes. Visual snapshot testing catches what DOM snapshots miss: layout shifts, color changes, font rendering differences, and the thousand small things that look fine in code but break in the browser. Percy and Chromatic are the two dominant tools in this space, and they take meaningfully
Testing
Snapshot updates are routine maintenance — but routine doesn't mean thoughtless. The difference between a team that benefits from snapshot testing and one that doesn't comes down to how updates are handled. A careless update covers up a regression. A thoughtful one confirms an intentional change and
Testing
Test-driven development has a reputation as a coding technique. Write a failing test. Write the code to make it pass. Refactor. Repeat. That loop is real and valuable, but it starts too late. By the time a developer opens their editor, the most expensive design decisions have already been made.
Testing
Test interference is one of the subtlest sources of test suite unreliability. Tests that pass in isolation fail when run together. Tests that pass in one order fail in another. A test that worked for six months suddenly starts failing after an unrelated test is added. The cause, almost always,