Link prefetch is a browser optimization that speculatively loads resources for pages the user is likely to visit next. When a page includes prefetch hints, the browser downloads the target page's resources during idle time, making subsequent navigation appear instantaneous. Prefetch mechanisms include `<link rel="prefetch">` for next-navigation resources, `<link rel="preconnect">` for establishing early connections, and `<link rel="dns-prefetch">` for resolving domains ahead of time. For URL shortening services, prefetch optimization can eliminate perceived redirect latency. If a page containing short links prefetches the shortener's domain connection, the redirect resolution begins before the user clicks. Services can also prefetch final destinations after resolving the short URL, creating a near-instantaneous navigation experience.
Link Prefetch
A browser feature that pre-fetches linked resources in the background before the user clicks. Improves perceived page transition speed.
Jan 5, 2026 · About 1 min read
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Related Terms
DNS Prefetch
A browser optimization that resolves link destination domain names in advance. Reduces page load time when a user clicks a link.
Prerendering
An optimization technique that fully renders a page in the background before the user clicks a link, making the subsequent navigation appear instant.
Lazy Loading
An optimization technique that defers loading of resources until they are actually needed, significantly improving initial page load speed.
Page Speed
A measure of how quickly a web page loads and becomes interactive, affecting both user experience and search rankings.
TTFB
The time from when a browser sends a request to when it receives the first byte of the response. A fundamental metric for server responsiveness.
Deep Link
A URL that points to a specific page or content within a mobile app rather than the app's home screen.
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