IndexNow is a new search engine protocol initiative that Microsoft Bing and Yandex announced in October 2021. With IndexNow, website owners will be able to describe changes that they’ve made to their website. This means that they’ll no longer have to wait for web crawlers to describe these changes. Microsoft explains that its goal is to make the Internet more open and efficient. It will help website owners to provide a clear signal which will make it easier for search engines to prioritize crawl.