Page Speed Analysis tools provide performance metrics for web-sites, and mod_pagespeed and Page Speed Service automatically rewrite web sites by applying web performance “best practices”. But exactly what is the impact on web site latency and usability from implementing these transformations? We’ll share what we’ve learned from running Page Speed and mod_pagespeed in the field.
What is the impact of specific web performance optimizations on metrics like page load time and time to first paint? What is the interaction between latency, page structure, and network-level decisions such as when to flush web pages so that browsers can start rendering? In this talk, we’ll present our latest findings and show developers how to apply these findings to their own web sites.
We’ll conclude with a discussion of new features being added to Page Speed analysis & rewriting tools to translate these learnings into a faster web.
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