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Performance Game Changer: Browser Back/Forward Cache. Performance Game Changer: Browser Back/Forward Cache. With that caveat out of the way, let’s get to the guts of the article: What is the Back/Forward Cache and why does it matter so much? Didn’t The HTTP Cache Do All That Anyway? Barry Pollard.
Many people often confuse site speed with page speed grades of performancetestingtools, which are actually calculated based on multiple factors of a page including its loading speed. The screenshot below explains that page load time and lighthouse performance scores are not the same, yet they are really close to each other.
This approach was touted to be better for fine-grained caching because each subresource could be cached individually and the full bundle didn’t need to be redownloaded if one of them changed. Upon receipt of a valid Alt-Svc header indicating HTTP/3 support, the browser will cache this and try to set up a QUIC connection from then on.
Stable media is commonly physical disk storage, but other devices and certain caching facilities qualify as well. Many high-end disk subsystems provide high-speed cache facilities to reduce the latency of read and write operations. This cache is often supported by a battery-powered backup facility.
You may even have a client who’s wondering why they’re getting inconsistent results on tests they’ve run on a site you built for them. It’s one of the most common (and frustrating) scenarios in web performancetesting. It’s also why we went above and beyond simply testing your site.
So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Real User Monitoring ( RUM ) tools evaluate user interactions continuously and collect field data (e.g.
So, if we created an overview of all the things we have to keep in mind when improving performance — from the very start of the process until the final release of the website — what would that list look like? Real User Monitoring ( RUM ) tools evaluate user interactions continuously and collect field data (e.g.
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