BLOG · WEB PERFORMANCE
Method, real cases and tools to improve loading, responsiveness and stability, with no shortcuts for the tests.
The difference between page cache and object cache, the pages where Redis can halve response time, the cases where it is not needed, and how to configure it…
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Fewer round trips to open the connection, no chain blocking when a packet is lost, connections that survive a change of network: what HTTP/3 brings compared with HTTP/2,…
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Heavy embedded players, hero videos without a poster, boxes without dimensions: how video affects LCP, INP and CLS and how to add it with facades, optimized posters and…
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Field data and lab diagnosis answer different questions: why stopping at CrUX data is a mistake, what performance headroom is and how to use the two together.
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100 on PageSpeed Insights, 77 in Chrome on the same page: how LiteSpeed Cache recognizes testers and serves them a different variant from the one real users get.
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URL groups, statuses, counts and validations: how the Search Console Core Web Vitals report works, why it doesn’t match PageSpeed Insights and why fixes only show up after…
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CrUX real-user data always describes the last 28 days: why an improvement crosses the threshold only after weeks, why regressions stay hidden and how to organize your work…
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Immediate data, segmented by page template and with the causes identified: what RUM adds to the Chrome UX Report, how to implement it with the web-vitals library and…
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Delaying JavaScript until the first interaction zeroes out Total Blocking Time in tests, but moves all the work onto the user’s first tap: what happens to INP, to…
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