Web development has grown at a tremendous pace with lots of automation testing frameworks coming in for both front-end and backend development. Websites have become smarter and so have the underlying tools and frameworks. With a significant surge in the web development area, browsers have also become smarter. Nowadays, you can find headless browsers, where users can interact with the browser without a GUI. You can even scrape websites in headless browsers using packages like Puppeteer and Node.js.
Efficient web development hugely relies on a testing mechanism for quality assessment before we can push code to production environments. Headless browsers can perform end-to-end testing, smoke testing, etc. at a faster speed, as it is free from overhead memory space required for the UI. Moreover, studies have proved that headless browsers generate more traffic than the non-automated ones. Popular browsers like Chrome can even help in debugging web pages in real-time, analyze performance, notify devs of memory consumption, enable developers to tweak their code and analyze performance in real-time, etc.