Taobao Frontend Technology

Apr 14, 2021 · Frontend Development

How to Accurately Measure First‑Screen Time with Rendering Density

This article explains the shift from traditional load metrics to user‑centric first‑screen measurements, outlines the challenges of defining a unified standard, and presents a rendering‑density based algorithm—including continuity judgment, non‑critical rendering exclusion, and validation against UC's T2 metric—to reliably calculate perceived first‑screen time.