You can add the following piece of code to your webpage so that when your customers search for a domain name on your website, the results are passed to your Storefront, and the Storefront page is displayed.
<form action="http://PRIMARY_HOSTNAME.shopco.com/search" method="post"> <input name="searchstring"><input type="submit" value="Find"> </form>
https://help.opensrs.com/hc/en-us/articles/203245833-Storefront-Reseller-Setup-Guide