daily.dev optimized post page performance by addressing issues with excessive DOM size and JavaScript execution on pages with heavy user interactions and comments. They utilized Chrome's content-visibility property and lazy rendering comments with the IntersectionObserver API to improve page responsiveness and reduce main thread work, resulting in enhanced user experience and SEO.
Table of contents
Measuring performance ⏱️Identifying the problem 🔍Fixing excessive DOM sizeOptimizing comments renderingResult6 Comments
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