When Google or any search engine discovers your website, it doesn’t automatically crawl and index every page all at once. Two important concepts help manage this process:

• Crawl Budget – How many pages search engines can crawl on your site.
• Index Budget – How many pages are eligible and prioritized to be indexed.

Although related, they are not the same. Let’s break it down.

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What Is Crawl Budget?

Crawl Budget is the number of pages a search engine will crawl on your website within a certain time frame. Crawling means the search engine is visiting your pages to understand the content.

Key Points

• Determined by search engine resources and your site’s performance.
• Influenced by:
  • Server speed – Faster servers allow more crawling.
  • Page errors – Broken pages reduce crawl efficiency.
  • Duplicate content – Repeated pages may lower crawl priority.
• Helps ensure important pages are discovered regularly.

Example

If Googlebot can crawl 1,000 pages a day on your site:

• Important pages like your homepage and top product pages are crawled first.
• Less important or outdated pages may be crawled less frequently.

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What Is Index Budget?

Index Budget is the number of pages that a search engine decides to store in its index from the crawled pages. Indexing means the page is added to the search engine’s database and can appear in search results.

Key Points

• Not all crawled pages are indexed.
• Pages with:
  • Thin content.
  • Duplicate content.
  • Low value.
    may not be indexed.
• Prioritizes pages that provide the most value to users.

Example

• Your site has 1,000 pages crawled.
• Only 800 high-quality, unique pages are added to Google’s index.
• The remaining 200 pages may never appear in search results.

Feature	Crawl Budget	Index Budget
Definition	Crawl budget is the number of pages Googlebot is willing and able to crawl on your website within a given time.	Index budget refers to how many of those crawled pages Google actually decides to store (index) in its database.
Main Idea	“How many pages Google will visit.”	“How many pages Google will save in search results.”
Stage in SEO	Crawling stage (discovery).	Indexing stage (selection & storage).
Controlled By	Crawl rate limit, site speed, server performance, internal links.	Content quality, relevance, duplication, and Google’s indexing rules.
Outcome	Pages are fetched and scanned by Googlebot.	Pages are added to Google’s search index.
Not Always Equal	Not all crawled pages get indexed.	Only selected crawled pages are indexed.
Main Factors	Site structure, crawl errors, server response, robots.txt.	Content quality, uniqueness, E-E-A-T signals, canonical tags.
SEO Importance	Helps ensure Google can discover your pages.	Determines whether pages can appear in search results.
Example	Googlebot crawls 1,000 pages of your website in a week.	Only 700 of those pages are indexed in Google.
Problem If Low	Important pages may not be discovered.	Important pages may not appear in search results.
Optimization Focus	Improve site speed, fix broken links, improve internal linking.	Improve content quality, avoid duplication, use proper indexing tags.
Tools Used	Google Search Console (crawl stats), server logs.	Google Search Console (index coverage report).
SEO Impact	Affects how efficiently Google explores your site.	Affects visibility in search engine results.
EEAT Best Practice	Make your website easy and fast for bots to crawl.	Ensure content is helpful, trustworthy, and valuable for indexing.
Can They Work Together?	Yes, crawl budget is the first step.	Yes, index budget depends on crawl results.
Which One Matters More?	Important for discovery and technical SEO health.	More important for visibility and ranking.
Simple Rule to Remember	Crawl Budget = Pages Google Visits	Index Budget = Pages Google Saves