Prefetch - MDN Web Docs Glossary: Definitions of Web-related terms | MDN
Prefetching refers to the practice of speculatively fetching documents or subresources in the background for pages that the user is likely to navigate to in the near future. This can significantly reduce the load time for the prefetched page if the user does choose to navigate to it. Prefetching might be used, for example, to fetch the page linked by a "Next" button or its subresources, or a link
How the Browser Pre-loader Makes Pages Load Faster
The pre-loader (also known as the speculative or look-ahead pre-parser) may be the single biggest improvement ever made to browser performance. During their implementation Mozilla reported a 19% improvement in load times, and in a test against the Alexa top 2,000 sites Google found around a 20% improvement. It’s not a new browser feature but some seem to believe it’s Chrome only and yet others sug
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