IndexNow is an open protocol, backed by Microsoft Bing and others, that lets a website push notifications about new or updated URLs instead of waiting to be crawled. A page announced through IndexNow is typically fetchable within hours. Because Bing's index feeds ChatGPT Search and Copilot, IndexNow has become a direct line into AI answers.
Our own deploys ping IndexNow automatically for every page published that day — part of the plumbing we install in a technical SEO and GEO engagement.