IndexNow

You generate a key, host it as a text file on your site to prove ownership, and then send each changed URL, or up to 10,000 of them in one JSON request, to an IndexNow endpoint. Participating engines share submissions with each other, so one ping reaches Bing, Yandex, Naver, Seznam.cz, Yep and the rest. A success response only means the URL was received, not that it will be indexed.

Microsoft Bing and Yandex launched it in 2021. Google does not take part, so sitemaps and Search Console remain the way to reach it. Many CMS plugins, hosting platforms and CDNs (Cloudflare's Crawler Hints, for example) send pings automatically, and it suits sites whose pages change often, such as shops, listings and news.