Internal Site Search is a powerful and underutilized website feature. While there are no direct SEO benefits from implementing Site Search (wait don’t leave yet, I said no direct benefits!), the information it provides can be used to understand and improve visitor behavior, allowing you to address areas of low or lost engagement (hello indirect SEO benefits!)
Understanding what your visitors are looking for, but can’t find, on your site can help you understand how Google is ascribing value to your site. You may already have the content your visitors need, but if they cannot easily find it, are you sending the right signals for Google to evaluate it? As Google’s algorithms become more complex, it is a high probability that user engagement is (or will be) correlated with being a factor for positive organic positioning. Utilizing Site Search to understand the signals your website is sending is more important now than ever.