5 lessons
Selenium and WebDriver
The oldest and most widely deployed browser automation tool — how the WebDriver protocol works, and why Selenium is still a default choice in many stacks.
Playwright in Depth
A modern browser automation library built specifically to fix Selenium's rough edges — auto-waiting, multi-browser support out of the box, and isolated contexts.
Puppeteer and the Chrome DevTools Protocol
The Node.js-native automation library that started the modern headless-browser wave, and the low-level protocol every tool in this module ultimately speaks.
Iframes: When the Data Is on a Page Inside the Page
Why an element you can clearly see in the browser sometimes does not exist in your scraper, and how to reach inside an iframe with plain requests, Selenium and Playwright.
Choosing Between Selenium, Playwright and Puppeteer
A practical comparison across performance, ecosystem and stealth to pick the right browser automation tool for a given scraping job.