Getting started with Custom Search
Verify your site in Search Console
Because privacy is important to Google, we need to know you own a site before we'll show you certain information about it or enable you to use our tools (for example, to request indexing or removal of a URL). Verification doesn't affect PageRank or affect your site's performance in Google's search results.
To prove your ownership of a site, add it to Search Console and follow the steps to verify that you control the site. Add your site now.