Definition IndexNow is a push-based notification protocol. The site owner posts URLs to an API endpoint; search engines update their crawl plan accordingly. A key file at the site root provides domain verification.
How it works Initial setup creates a 32-character key uploaded as {key}.txt to the site. When a URL updates, a POST request hits the endpoint with the key and URL list. The endpoint validates the response code. Bing recrawls the URL within 24 hours. The official cap is 10,000 URLs per day.
Where you see it in Scope Trends From **Sitemap Management** > **IndexNow** generate the key. Notifications fire automatically on publish or update. Notification history is logged.
Frequently asked questions **Does Google support IndexNow?** Not currently. Google's separate Indexing API is open only for JobPosting and BroadcastEvent.
**What if I lose the key?** Generate a new key and remove the old key file. Bing recognizes the new key on the next request.