Getting Reliable Visual Performance Metrics
Read OriginalThis technical article discusses the challenge of obtaining reliable visual performance metrics (e.g., Speed Index, visual complete) due to late-loading page elements like adverts, cookie banners, and carousels. It provides a detailed analysis using WebPageTest filmstrips and offers a script-based solution to adjust the activity timeout to 100ms for more accurate measurements, helping developers and performance consultants get consistent results.
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