Preloading vs Prefetching

Developers should use preloading when optimizing web applications for speed, particularly for resources that are essential for above-the-fold content or critical user interactions, such as custom fonts, JavaScript bundles for initial rendering, or large images meets developers should use prefetching when building applications where speed and responsiveness are critical, such as in web pages with predictable user navigation (e. Here's our take.

Preloading

Nice Pick

Developers should use preloading when optimizing web applications for speed, particularly for resources that are essential for above-the-fold content or critical user interactions, such as custom fonts, JavaScript bundles for initial rendering, or large images

Pros

• It is especially valuable in single-page applications (SPAs) and progressive web apps (PWAs) to reduce time-to-interactive and first-contentful-paint metrics, leading to better SEO rankings and user retention
• Related to: web-performance, critical-rendering-path

Cons

• Specific tradeoffs depend on your use case

Prefetching

Developers should use prefetching when building applications where speed and responsiveness are critical, such as in web pages with predictable user navigation (e

Pros

• g
• Related to: caching, lazy-loading

Cons

• Specific tradeoffs depend on your use case

The Verdict

Use Preloading if: You want it is especially valuable in single-page applications (spas) and progressive web apps (pwas) to reduce time-to-interactive and first-contentful-paint metrics, leading to better seo rankings and user retention and can live with specific tradeoffs depend on your use case.

Use Prefetching if: You prioritize g over what Preloading offers.

The Bottom Line

Preloading wins

Developers should use preloading when optimizing web applications for speed, particularly for resources that are essential for above-the-fold content or critical user interactions, such as custom fonts, JavaScript bundles for initial rendering, or large images