What is DNS Prefetch | InsertDNSPrefetch | why DNS Prefetch is important for SEO | rel=dns-prefetch

If You want to speed up your page Then the DNS prefetch link will play a key role.

DNS-prefetch link is an try to resolve domain names before resources get requested.

For SEO Point of view What is DNS Prefetch will help because page speed will be increased because of its resolves domain name before request the data.

What is rel=dns-prefetch?

Answer :


  • DNS-prefetch is a way to speed up web pages at a certain extent by resolving DNS.
  • rel=dns-prefetch used to suggest a browser should resolve the DNS of a specific domain before to it request data

Purpose Of DNS Prefetch

The main purpose for rel=dns-prefetch or DNS Prefetch to speed up the way web pages load when they are using different domains or cross-domain for page resources or data.

Why DNS preacher is important for SEO

Of course, DNS preacher will improve SEO because of the speed up page with resolving the cross-domain problems if try to access cross-domain.

DNS prefetch Example :

rel="dns-prefetch" href="https://www.worldgyan.com">
rel="dns-prefetch" href="https://stackpath.bootstrapcdn.com">
rel="dns-prefetch" href="https://www.worldgyan.com/css/">
rel="dns-prefetch" href="https://www.facebook.com">
rel="dns-prefetch" href="https://www.worldgyan.com/wg">
rel="dns-prefetch" href="https://ajax.googleapis.com">

Its depend on from where resource are loading