IndexNow — definition
IndexNow is an open protocol that allows website owners to instantly notify search engines (like Bing and Yandex) whenever content is created, updated, or deleted.
Expanded Explanation
Bypasses slow periodic crawler sweeps by submitting URL changes directly to search APIs in real time, ensuring immediate discovery for AI engines.
Analogy & Mental Model
IndexNow is like sending a direct text message to search engines saying "I just published an article!" instead of waiting for them to stop by.
Why It Matters & Where It's Used
Enables near-instant citation discovery on Microsoft Copilot and Bing-powered AI search engines.
Concrete Real-World Application
A news blog pinging IndexNow immediately upon publishing a breaking report, earning Bing AI citations within 5 minutes.
IndexNow vs XML Sitemaps
Sitemaps are static XML lists checked periodically, whereas IndexNow sends active push notifications on content updates.
How It Works & Key Components
Executes via simple HTTP POST API payloads containing changed URLs.
1API Key Generation
Hosting a unique verification text file at the domain root.
2Instant URL Payload Push
Sending HTTP POST requests to IndexNow endpoints whenever content updates.
3Cross-Engine Syncing
IndexNow sharing submitted URLs across participating search engines.
Frequently Asked Questions
Q:Does Google support IndexNow?
Google tests instant indexing APIs for specific schemas (Jobs, Events), while Bing and Yandex fully support IndexNow for all pages.
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