Reduce DNS lookups

To Reduce DNS lookups you need to remove the external website resources linking to your site.

For example if you have js/css resources coming from Bootstrap that amounts to 1 extra DNS lookup and to reduce that you simply need to host those files on your website itself.

Sometime it is not possible to reduce the DNS lookup, for example you have AdSense script which is necessary for ads such script is hosted on third party location(Google) and in such cases you won’t be able to reduce the DNS lookup, nevertheless check what resources you can host your self and once you do that you will see improved score on GTMetrix, Pingdom with regard to DNS lookup issue.

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