What is IndexNow — Notify Bing to Index Your New URLs Instantly (Beginner Guide)

If you've just launched a website or published a new blog post, you've probably experienced the same frustration — it takes days, sometimes weeks, before Google or Bing actually discovers and indexes the page. Searching for your own article in that window yields nothing. In an era where everything needs to be fast, there's a better way than waiting for crawlers to wander by on their own schedule. That way is called IndexNow.

What is IndexNow

IndexNow is an open-source protocol that lets website owners "ping" search engines directly to say: "this URL was just created / updated / deleted." When the search engine receives the ping, it crawls the URL right away — rather than waiting for its routine schedule, which could be days apart.

A simple analogy: instead of waiting for the postal carrier to pass by your street and discover you have mail, you call the post office directly and say, "I'm sending 5 letters today, come pick them up now." IndexNow is that phone call.

Why Use IndexNow

• Several times faster — new posts are indexed by Bing/Yandex within hours (versus 3-14 days normally)
• 100% free — no signup, no credit card, no fees
• Very easy — one verification file + one HTTP request and you're done
• Reduces server load — bots don't randomly crawl your whole site; they come only to URLs you point them to
• Great for frequently updated sites — news, blogs, e-commerce with new products daily

IndexNow and Popular CMS — Enable Automatic Submission Instantly

You don't need to write custom code every time. Major CMS platforms support IndexNow either through a dedicated plugin or built-in settings, so every publish or update automatically pings search engines.

Example for a custom PHP site — add this snippet after publishing an article:

$url = urlencode('https://yoursite.com/new-post.html');
$key = 'YOUR_INDEXNOW_KEY';
$endpoint = "https://api.indexnow.org/indexnow?url={$url}&key={$key}";
$ctx = stream_context_create(['http' => ['method' => 'GET', 'timeout' => 5]]);
$resp = @file_get_contents($endpoint, false, $ctx);
// $http_response_header[0] should contain "200 OK" or "202 Accepted"

IndexNow Strategy for High-Volume Sites

For e-commerce or news sites that publish hundreds of new pages each day, set up an IndexNow queue that batches multiple URLs into a single submission, reducing the number of requests and staying well within rate limits.

• Batch submit — collect URLs over 15–30 minutes and send one POST JSON (up to 10,000 URLs)
• New and updated URLs only — never re-submit unchanged URLs
• Use a Cron Job — run a script that flushes the pending queue every 30 minutes
• Log response codes — store HTTP codes in your database for debugging 403/422 errors
• Include keyLocation — in POST JSON, explicitly provide keyLocation if your key.txt is not at the root

Example batch submission in PHP:

$payload = json_encode([
  'host'        => 'yoursite.com',
  'key'         => 'YOUR_KEY',
  'keyLocation' => 'https://yoursite.com/YOUR_KEY.txt',
  'urlList'     => $urlsArray  // array of recently published/updated URLs
]);
$opts = [
  'http' => [
    'method'  => 'POST',
    'header'  => "Content-Type: application/json\r\n",
    'content' => $payload,
    'timeout' => 10,
  ]
];
$result = file_get_contents('https://api.indexnow.org/indexnow',
                            false, stream_context_create($opts));

Measurable Real-World Benefits of Using IndexNow

Webmasters and SEO agencies who consistently use IndexNow report the same outcome — time for new pages to appear in Bing drops significantly.

Key point: IndexNow helps search engines "know quickly" — it does not guarantee better rankings. Content quality and backlinks remain the primary SEO factors regardless.

Search Engines That Support IndexNow

Search Engine	Supported	Note
Bing (Microsoft)	✅ Yes	Owner of the protocol — accepts directly
Yandex	✅ Yes	Co-founder — same endpoint as Bing
Seznam (Czech)	✅ Yes	Supported via api.indexnow.org
Naver (Korea)	✅ Yes	Supported via api.indexnow.org
Google	❌ Not yet	Google has its own Search Console

How It Works — 3 Steps

Step 1 — Create an API Key

An alphanumeric or hex string, 8-128 characters long, e.g. a1b2c3d4e5f6... You can generate one with openssl rand -hex 32 or any online tool.

Step 2 — Place the Verification File

Create a file named {KEY}.txt at the root of your site (e.g. https://yoursite.com/{KEY}.txt). The file's content is the key itself — this proves you own the domain.

Step 3 — Submit URLs via HTTP

Use HTTP GET or POST to send URLs to the IndexNow endpoint:

https://api.indexnow.org/indexnow?url=https://yoursite.com/new-post.html&key=YOUR_KEY

If you get HTTP 200 or 202 back = success. The search engine will crawl within hours.

Real-World Submission Examples (curl)

Submit One URL — GET

curl "https://api.indexnow.org/indexnow?url=https://yoursite.com/post.html&key=YOUR_KEY"

Submit Multiple URLs — POST JSON

curl -X POST "https://api.indexnow.org/indexnow" \
  -H "Content-Type: application/json" \
  -d '{
    "host": "yoursite.com",
    "key": "YOUR_KEY",
    "keyLocation": "https://yoursite.com/YOUR_KEY.txt",
    "urlList": [
      "https://yoursite.com/post-1.html",
      "https://yoursite.com/post-2.html",
      "https://yoursite.com/post-3.html"
    ]
  }'

HTTP Status Code Meanings

Code	Meaning
200	OK — URL accepted
202	Accepted — received, key validation pending
400	Bad Request — JSON format error
403	Forbidden — key.txt not found or key mismatch
422	Unprocessable — URL not on host, or HTTP vs HTTPS mismatch
429	Too Many Requests — slow down and retry later

Limitations to Know

• Max 10,000 URLs per request — split into batches if more
• URLs must be on the same host where the key is verified — verifying at example.com doesn't let you submit URLs of othersite.com
• HTTPS only — submitted URLs must start with https://
• Don't spam — re-submitting the same URL every 5 minutes may trigger rate limits
• Content quality still matters — IndexNow speeds up crawling, but does not help ranking if the content is poor

How to Verify IndexNow is Working

1. Sign up for Bing Webmaster Tools at bing.com/webmasters (free)
2. Verify your domain with Bing
3. Open the URL Submission or IndexNow menu in the sidebar
4. You'll see the URLs you submitted earlier, with their status (Submitted / Indexed / Error)

IndexNow vs Google Search Console — What's the Difference

Aspect	IndexNow	Google Search Console
Coverage	Bing + Yandex + others	Google only
Login required	No (uses key.txt)	Yes (Google account)
Bulk submit	10,000 URLs/request	One URL via UI
API	Yes (HTTP POST/GET)	Yes (limited Indexing API)
Free	Yes	Yes

Recommendation: Use both in parallel — IndexNow for Bing/Yandex, Search Console for Google. Together they cover every major search engine.

Frequently Asked Questions

Q: Do I need to know programming?

Not necessarily — just knowing how to use curl or a browser to submit a URL is enough. If you use WordPress, there's a free plugin called "IndexNow" by Microsoft that installs with one click and auto-submits every time you publish.

Q: Will it get my site indexed by Google faster?

No — Google doesn't yet support IndexNow. Use Google Search Console instead (Request Indexing, one URL at a time).

Q: What if I want to change my key?

Create a new {NEW_KEY}.txt file at root, then use the new key for future submissions. The old key still works until you remove the old file.

Q: Can I submit URLs of pages I've deleted?

Yes — IndexNow can announce new / updated / deleted pages. Bots will crawl, encounter the 404, and remove the URL from the index.

Q: Will it improve my rankings?

Not directly — IndexNow only speeds up discovery. Rankings still depend on content quality, backlinks, and standard technical SEO.