PARTYTOWN: OPTIMIZE THIRD PARTY SCRIPTS WITH WEB WORKERS

Summary from the TLDR Web Dev newsletter

Partytown is a library that optimizes website performance by automatically moving third-party scripts (like analytics, ads, and chat widgets) into web workers, allowing them to run in background threads instead of blocking the main thread responsible for rendering and user interactions. This approach can improve Core Web Vitals scores. One example showed a Next.js site's Lighthouse performance score jumping from 70 to 99 after implementing Partytown with Google Tag Manager.