canisoon

Resource Hints: dns-prefetch

77.47

DOM

Gives a hint to the browser to perform a DNS lookup in the background to improve performance. This is indicated using `<link rel="dns-prefetch" href="https://example.com/">`

Further reading:

  1. Can I use page for: Resource Hints: dns-prefetch
  2. Prerender and prefetch support
  3. Controlling DNS prefetching
  4. What to <link rel=dns-prefetch> and when to use `preconnect` instead