Searchinterneat-a.akamaihd.net is domain that is used by adware and hijackers to show ads and pop-ups. It is often comes bundled with products from Akamai Technologies, Inc or bundled with various free programs. Akamai Technologies is big CDN (Content Delivery Network) based in United States and some percent of web traffic goes through sub-domains of this company. However often it is also used by adware to show redirects. Often Searchinterneat-a.akamaihd.net redirects to fake Java or Adobe update pages. Those pages offer fake updates, that can install malicious or potentially unwanted programs.