Submit URLs to Bing with IndexNow

Submit URLs to Bing with IndexNow

Bing co-authored IndexNow. Because Microsoft and Yandex shipped the protocol together in October 2021, Bing's crawl infrastructure was the first to treat IndexNow pings as a first-class signal rather than a courtesy notification.¹ The shared global endpoint at api.indexnow.org routes Bing submissions directly into the same priority queue that the Bing Webmaster Tools "URL submission" API feeds, which means a single IndexNow call delivers the same crawl precedence without the per-day quota cap Webmaster Tools enforces.

Across the US and most English-speaking markets, Bing represents roughly 3-7% of desktop search traffic. Within Microsoft Edge and ChatGPT's web browsing tool the share is meaningfully higher. Consequently, faster Bing indexing translates directly into faster discovery by Copilot, ChatGPT, and the Windows search overlay; all three surfaces draw from Bing's index.²

How Bing treats IndexNow signals

Bingbot prioritises IndexNow-submitted URLs ahead of its scheduled crawl queue, which means a freshly pinged URL is typically fetched within minutes rather than hours for domains with clean submission histories, and one ping is enough to trigger a Bing priority crawl the moment a page goes live instead of waiting for the next scheduled visit. Bing deduplicates incoming pings for the same URL within a short time window, so resubmitting the same address sooner produces no additional benefit and merely wastes a slot in the crawl queue that could have been allocated to a genuinely changed page.³

Furthermore, Bing applies a soft quality filter before promoting the URL into its index; pages that return 5xx errors, redirect chains over three hops, or robots.txt blocks are discarded silently rather than retried later. Pages that return a 200 status but serve thin or duplicate content may also be held back from the index until Bing's quality classifiers confirm the page offers distinct value compared to existing indexed content covering the same topic.

Choosing canonical URLs before submission

Submit the canonical URL rather than a tracked or duplicate variant whenever possible. Bing's URL normaliser removes common tracking parameters, but giving the crawler a clean canonical address removes ambiguity before the priority queue starts, which reduces the chance that two versions of the same page compete for the same index slot. For sites using UTM parameters for campaign tracking, the normaliser handles the most common cases, but submitting the clean canonical form eliminates the risk entirely rather than relying on the normaliser to collapse variants correctly.

For sites with established crawl history, the IndexNow protocol accepts up to 10,000 URLs per POST request, though each participating engine sets its own daily submission thresholds per site.³ New domains start with a lower implicit cap that scales upward as Bing observes consistent submission quality over the first few weeks of active use, and submitting at least one batch every two to three days during the ramp-up period signals steady crawl demand.

Sites that maintain a regular cadence of submissions tend to see their daily allocation increase faster than sites that submit sporadically in large bursts followed by days of inactivity, because the steady signal helps Bing's allocation model predict the domain's expected crawl demand more accurately. A practical cadence for most small-to-medium sites is one batch every two to three days, which keeps the allocation model calibrated without flooding the queue with low-value repeat submissions.

Adoption and coverage

Inside the broader IndexNow ecosystem, Bing accounts for the largest share of consumer-facing traffic. Bing powers Yahoo Search, DuckDuckGo's web results (alongside its own indexes), Ecosia, and AOL Search, which means a single IndexNow ping reaches all four downstream surfaces without separate submissions.⁴ ChatGPT's browsing tool, the Copilot answer engine inside Windows 11 and Microsoft 365, and the new Edge sidebar all query Bing's index in real time.

Because Bing's market share is uneven across regions, higher in North America and lower in continental Europe, the practical value of fast Bing indexing tracks closely with where your audience lives. For teams publishing in English for a global audience, Bing-powered surfaces collectively represent the second-largest discovery channel after Google, which means the speed advantage from IndexNow submission applies to nearly every English-language market simultaneously.

Common issues and workarounds

The most-reported Bing IndexNow issue in 2026 webmaster forum threads is silent rejection of URLs with query parameters that look tracking-like (utm_, fbclid, gclid). Bing's normaliser strips these before queueing, which is usually correct but occasionally collapses two distinct pages into one. Submitting the canonical form rather than the tracked form sidesteps the problem entirely. Yet another recurring report involves 429 responses on bulk submission runs; Bing rate-limits at roughly 600 URLs per minute per host, so batches of 50 with a five-second pause between batches stay safely under the threshold.

For ongoing visibility, Bing Webmaster Tools' "Submitted URLs" report shows IndexNow submissions alongside sitemap and manual entries. Reviewing this report after each submission batch confirms that Bing processed the full set and flags any individual URLs that returned unexpected response codes during the priority crawl. Setting a calendar reminder to check the report 30 minutes after each batch submission takes less than a minute and catches issues like key file mismatches or robots.txt blocks before they silently fail an entire day's worth of submissions.

Bing's role in the Microsoft 365 and Copilot discovery ecosystem

Fast Bing indexing reaches more surfaces than most publishers realize. Microsoft Copilot in Windows 11, the Edge sidebar, Microsoft 365 Copilot, and ChatGPT's web browsing tool (which uses Bing's index for real-time retrieval) all pull from the same underlying Bing crawl priority queue that IndexNow feeds. Consequently, submitting a URL via IndexNow accelerates its discovery across every Microsoft AI surface simultaneously, not just the Bing web results page.

For brand publishers and thought-leadership content teams, this reach matters beyond raw traffic volume. Copilot answers frequently cite recently indexed content when responding to current-events queries, and content that enters Bing's index quickly has a larger discovery window during the peak traffic period after publication. Microsoft's integration of Bing results into enterprise search through Microsoft 365 Copilot means that internal-facing content, documentation sites, and knowledge-base articles also benefit from faster indexing, because employees searching through Copilot draw from the same underlying Bing index that IndexNow feeds.

IndexNow and Bing News

Bing News aggregates from Bing's main web index rather than from a separate news-only crawl.⁵ An article indexed quickly after an IndexNow submission can appear in Bing News results within hours of publication for established news domains. Submitting article URLs immediately at publish gives the article the longest possible window in the Bing News freshness queue, where content older than 24 hours typically loses placement to more recently indexed items.

Monitoring Bing IndexNow submissions in Webmaster Tools

Bing Webmaster Tools provides a dedicated submission history view for IndexNow pings. The "URL Submission" report, accessible under the Crawl section of the dashboard, shows every URL submitted through IndexNow alongside sitemap-sourced and manually submitted URLs. Each entry shows the submission timestamp and a status label: Submitted, Crawled, or Indexed.

Understanding the status distinction helps you interpret results correctly. Submitted means Bing received the ping but Bingbot has not yet fetched the URL; this status is normal within the first few minutes after a submission. Crawled confirms Bingbot visited the page; the transition from Submitted to Crawled for IndexNow URLs on established domains typically takes under 10 minutes (approximate). Indexed confirms the URL is in Bing's active search results and can appear for relevant queries across all Bing-powered surfaces including the main results page, Bing News, and the Copilot answer engine.

Diagnosing failed or slow submissions

When a submitted URL remains in Submitted status for more than 30 minutes, the most common causes are a robots.txt block against Bingbot, a key file mismatch that caused silent rejection, or a server-side error response. Check the URL Inspection report in Bing Webmaster Tools for the specific crawl response code, then correct the blocking condition and resubmit.

Pages behind a login wall or returning a 302 redirect to an external domain also stall in the Submitted state, because Bingbot treats temporary redirects as a signal to defer the fetch rather than following through immediately. If the URL is intended to redirect permanently, changing the response from 302 to 301 resolves the stall because Bingbot follows permanent redirects immediately and transfers ranking signals to the destination URL without waiting for a subsequent crawl cycle. After fixing the underlying issue, resubmit the URL via IndexNow to trigger a fresh priority crawl that reflects the corrected content or redirect behavior.

When to use this

Submit to Bing through IndexNow whenever a page is published, materially updated, or removed. Avoid resubmitting unchanged pages, which Bing treats as low-quality noise. For sites that already use Bing Webmaster Tools, IndexNow removes the daily 10,000-URL ceiling on bulk submissions and removes the need to authenticate per call.

Examples

https://example.com/blog/discontinued-product/

Returns 410 Gone after submission; Bing removes from index within ~24 hours.