What Is IndexNow and Why It Matters for AI Search
- Harold Bell
- 2 days ago
- 5 min read
Updated: 2 days ago
Key takeaways
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Search indexing has always run on a polite fiction. You publish, then wait for a crawler to notice. Sitemaps shortened the wait and request buttons let you plead individual cases, but the model stayed pull. The engine decides when to look. IndexNow is the model inverted. Your site announces changes the moment they happen, and participating engines act on the announcement.
That inversion mattered modestly when Bing was just Bing. It matters enormously now that Bing’s index supplies ChatGPT search and Microsoft Copilot, because the protocol collapsed the distance between hitting publish and being retrievable by the answer engines. Here is how it works and how to turn it on.
What is IndexNow
IndexNow is an open protocol, launched by Microsoft Bing and Yandex in 2021, that lets websites notify search engines the instant URLs are added, updated, or deleted. Instead of waiting to be crawled, your site pushes the change directly. |
Mechanically it is refreshingly simple. Your site hosts a small API key file to prove ownership, then sends a lightweight ping listing changed URLs whenever content changes. That’s the whole protocol. No crawl scheduling negotiation, no per engine setup, and adoption tells you it works at scale.
Bing’s own reporting puts daily volume above 3.5 billion submitted URLs, with 18% of all newly clicked URLs in its search results having arrived through the protocol, and names GoDaddy, the Internet Archive, and Condé Nast among adopters.
Which search engines support IndexNow
Bing, Yandex, Naver, and Seznam participate, and the protocol shares submissions between engines, so one ping notifies them all. Google does not support IndexNow and continues to rely on crawling for regular content. |
The sharing design is the underrated feature. Ping one participating endpoint and the protocol distributes your notification to the rest, so a single integration covers the whole participating ecosystem. The Google absence is the caveat to plan around. Google has publicly tested the protocol without adopting it, which means your Google workflow stays the classic one, sitemaps, internal links, and indexing requests, while your Microsoft side workflow gets to skip the line.
Why does IndexNow matter for AI search
ChatGPT search and Microsoft Copilot retrieve from Bing’s index, so the speed at which Bing indexes your content is the speed at which it becomes citable by those engines. IndexNow makes that speed same day instead of same month. |
This is the part the protocol’s own documentation undersells. Seer Interactive’s research found 87% of ChatGPT search citations match Bing’s top organic results, which makes Bing indexation the eligibility test for the loudest answer engine in the market. A page that takes three weeks to enter Bing’s index spends three weeks invisible to ChatGPT retrieval.
The same page pushed through IndexNow can be in the candidate pool the day it publishes, and for time sensitive content, launches, rebuttals, comparisons, that gap is the whole game. The full Bing side playbook lives in my guide to getting pages into Bing’s index.
How do you set up IndexNow
On Wix, enable it natively in SEO settings, no code required. On WordPress, the major SEO plugins include it. Elsewhere, generate an API key, host the key file at your domain root, and ping the endpoint on every content change, or let your CDN do it. |
Wix: a native toggle. This site runs it that way, and new posts routinely appear in Bing’s index within hours of publishing.
WordPress: Yoast, Rank Math, AIOSEO, and Microsoft’s own plugin all ship IndexNow support, so it is a settings checkbox rather than a project.
Cloudflare and other CDNs: platform level integrations submit on your behalf when content changes at the edge.
Custom builds: generate a key, host the key file, and POST changed URLs to the API. Most teams wire it into the publish hook in an afternoon.
How do you verify IndexNow is working
Bing Webmaster Tools includes an IndexNow report showing submitted URLs, their crawl and index outcomes, and submission sources. Pair it with Site Explorer to confirm pushed pages actually entered the index. |
Submission is not indexation, so close the loop. Bing built IndexNow Insights into Bing Webmaster Tools precisely for this, reporting which submitted URLs were crawled, which were indexed, and which failed with reasons, plus an important URLs missing view for pages getting clicks that never arrived via the protocol.
My complete Bing Webmaster Tools guide covers where the report sits in the weekly workflow. Watch the failure reasons especially, because IndexNow removes the discovery delay while leaving Bing’s quality bar fully intact.
What IndexNow does not do
It does not influence rankings, bypass quality evaluation, or affect Google. It changes when engines learn about your URLs, and nothing about whether those URLs deserve indexing once evaluated. |
Worth stating plainly because the protocol attracts magical thinking. A thin page pushed instantly is a thin page rejected instantly. IndexNow pairs with content and link fundamentals, it never substitutes for them, and the cross engine sequencing that puts all these pieces in order lives in my guide to getting your website indexed by Google and Bing.
Publishing daily and still waiting weeks for Bing? IndexNow setup plus a submission audit is an hour of work with a same day payoff. Book 30 minutes with MQL Magnet and we’ll get the push pipeline running. |
Frequently asked questions
What is IndexNow?
An open protocol launched by Microsoft Bing and Yandex in 2021 that lets websites push new, updated, and deleted URLs directly to search engines the moment content changes, instead of waiting to be crawled.
Which search engines use IndexNow?
Bing, Yandex, Naver, and Seznam participate, and submissions are shared between them, so one ping notifies all participating engines. Google does not support the protocol.
Does Google support IndexNow?
No. Google has tested the protocol but has not adopted it, and continues to rely on crawling, sitemaps, and Search Console requests for regular content discovery.
How does IndexNow help with ChatGPT visibility?
ChatGPT search retrieves from Bing’s index, and research shows its citations overwhelmingly track Bing’s top results. IndexNow gets pages into that index within hours, making them citable the day they publish.
How do I set up IndexNow on Wix?
Enable the native IndexNow toggle in your site’s SEO settings. Wix then pushes new and updated URLs automatically on publish, with no API key management or code required.
How do I set up IndexNow on WordPress?
Use a plugin that includes it, such as Yoast, Rank Math, AIOSEO, or Microsoft’s official IndexNow plugin, and enable the feature in the plugin settings.
Does IndexNow improve rankings?
Not directly. It accelerates discovery and indexing, which gets eligible pages into results and AI retrieval pools sooner. Ranking still depends on content quality, relevance, and authority.
How do I know if IndexNow is working?
Check the IndexNow report in Bing Webmaster Tools for submitted URLs and their crawl and index outcomes, and confirm in Site Explorer that pushed pages entered Bing’s index.
Is IndexNow free?
Yes. The protocol is open and free, the API key costs nothing, and platform integrations on Wix, WordPress plugins, and Cloudflare add no charge for it.
Does IndexNow replace sitemaps?
No. Sitemaps remain the full inventory map engines use for comprehensive discovery, while IndexNow handles real time change notification. Run both.
What happens if I push low quality pages through IndexNow?
They get evaluated faster and rejected faster. The protocol removes discovery delay but leaves quality evaluation untouched, so exclusions like crawled but not indexed still apply.
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