Knowing when a page is “done loading” is one of the trickiest problems in browser automation. The browser fires a load event, but that event has nothing to do with the AJAX calls still fetching pro...
Python has multiple libraries that let you query HTML with CSS selectors, but they are not interchangeable. BeautifulSoup is the most approachable. lxml compiles selectors to XPath and runs them at...
Dropdown <select> elements appear on nearly every web form – country pickers, currency selectors, shipping methods, language preferences. When you automate these forms with Puppeteer, you nee...
Headless mode runs Chrome without a visible browser window. There is no GUI, no address bar, no rendered pixels hitting your monitor – just a fully functional browser engine executing in the backgr...
When you scrape the web at scale, you will encounter pages encoded in UTF-8, Latin-1, Windows-1252, Shift_JIS, EUC-KR, and dozens of other character sets. Most of the time things just work because ...
Web scraping has evolved from a niche technical activity practiced by a handful of data engineers into a multi-billion dollar industry with its own ecosystem of vendors, tools, and career paths. Wh...
On February 4, 2026, Microsoft launched its Publisher Content Marketplace – a platform where publishers set licensing terms and AI companies pay for the right to use their content as training data....
Clicking elements in nodriver is not as simple as calling page.click("#button") and moving on. Nodriver is fully asynchronous, built on the Chrome DevTools Protocol, and its element model works dif...
Long-running scrapers live and die by how well they manage cookies. A scraper that runs for hours or days will inevitably face expired authentication tokens, rotated session identifiers, and restar...
Most authenticated web scraping depends on cookies. Once a server accepts your credentials, it hands back a small token – a session cookie – that proves you are logged in. Send that cookie with eve...