Between voice-activated devices like Alexa and Echo and personal assistants like Siri and Cortana, voice search is on the rise. Kleiner Perkins Caufield & Byers announced in its 2017 Internet Trends report that this trend isn’t limited to AI assistants: twenty percent of searches on mobile were voice searches, and that number is quickly rising.
Voice Search Optimization (VSO) is an approach focused on maximizing the number of visitors to a website or app by improving the visibility and suggestion rate (or recommendation rate) in voice search results. In general, the more often a site or app is suggested and the higher it is ranked among the recommendations, the more traffic it will receive. VSO can be applied to several voice search protocols including but not limited to Google, Amazon, Siri, and Windows Cortana.