When adding a Google Custom Search box to my site, does that help SEO, and does it influence regular Google web results? If not, does it provide me with data to help me optimize my website?
Does Google Custom Search help with SEO?
seo;google custom search
Using Google custom search will not affect your pages' rankings. If you're looking for data that will help optimize your website sign up for a Google Webmaster Tools account. It offers a bunch of useful information for how Google sees your website and even allows Google to communicate problems to you.