What is X-DNS Prefetch.?!




Wordpress LScache Plugin: What is X-DNS Prefetch.?!

Last Updated on: Wed, 15 Apr 2026 00:00:02
Hi. I am on litespeed server using litespeed cache plugin and quic CDN. I wanted to ask what is this X-DNS prefecth?! why it is off? and if i somehow i enable it, does it improve performance (even though if its in milliseconds)? Kindly see the below SS. Thank You . https://i.ibb.co/QHrKBD5/dns-prefetch-control.jpg . Hi, I think it is sent by something else , not by QC for what it is , please check this page https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control Best regards, @CacheCrawler Hmm right. Another issue i would like to ask. I have enabled webp from litespeed plugin but it not seems to be serving images in webp format.?! (it has been 2 days since webp is activated) Why is that.?! Kindly see the below images.. . https://i.ibb.co/c60VHpm/not-webp.jpg https://i.ibb.co/q5C2DgT/litespeed-settings.jpg . Report Number: HSWXPYAY



LiteCache Rush: Speed comes from using less, not from doing it faster



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