2018 has already been the year for voice search and virtual assistants, with tools such as Alexa and Google Home being more widely adopted into our homes and work places. By 2020, the majority of searches made will be voice search rather than traditional searches; and companies should already have started adapting their search strategy for both SEO and PPC in readiness.
When a visitor arrives on your website etc, using analytics tools such as Google Analytics, it is possible to understand which terms are being used to drive traffic. In addition what terms are being searched for on your site once they arrive (if you have a search field). However, with the rise in voice searches, visitors don’t necessarily ever get to your website, rather the virtual assistant gives users the answers directly.