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Rare Earth Juejin Tech Community
Rare Earth Juejin Tech Community
Feb 17, 2025 · Frontend Development

Why Is There a Large Gap Between TTFB and FCP on Alibaba.com PC Homepage?

During performance tuning of Alibaba.com’s PC new‑user homepage, the Time To First Byte became acceptable while the First Contentful Paint remained 3 seconds slower, revealing that CSS download and parsing blocked rendering and that inlining critical CSS dramatically reduced FCP latency.

CSS OptimizationFCPTTFB
0 likes · 10 min read
Why Is There a Large Gap Between TTFB and FCP on Alibaba.com PC Homepage?
Tencent IMWeb Frontend Team
Tencent IMWeb Frontend Team
Jan 9, 2018 · Mobile Development

How to Optimize Mobile Web Resource Loading for Faster Performance

This article explains why resource loading optimization is vital for mobile web development, shows how to measure page load speed with Chrome DevTools, breaks down the resource loading lifecycle, and provides practical solutions for queueing, high TTFB, and long download times.

TTFBWeb Optimizationchrome devtools
0 likes · 6 min read
How to Optimize Mobile Web Resource Loading for Faster Performance
Efficient Ops
Efficient Ops
Mar 10, 2016 · Frontend Development

How to Evaluate Your Website’s Performance with WebPageTest and HTTPArchive Metrics

This article explains how to use WebPageTest and HTTPArchive data to measure key website performance indicators, interprets their meanings and relationships, and provides baseline values for assessing a site’s speed, backend efficiency, and third‑party impact.

HTTPArchiveLoad TimeSpeed Index
0 likes · 18 min read
How to Evaluate Your Website’s Performance with WebPageTest and HTTPArchive Metrics