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Crawl Budget Calculator

Estimate crawl budget consumption and how long a full crawl takes.

About Crawl Budget Calculator

Crawl budget is finite, and URLs that should not be indexed consume it. Faster server responses increase the rate search engines are willing to crawl, which is why performance affects indexing. On large sites crawl waste is the main reason new content takes weeks to be indexed.

Formula

Crawl Budget

Days for a full crawl = crawlable URLs ÷ useful pages crawled per day

crawl waste
Budget spent on parameter URLs, duplicates and thin pages
crawl rate
Partly determined by server response speed

Worked example

With the default values below, Crawl Budget Calculator returns Days for a Full Crawl of 31.47. Change any input above and every figure here is recalculated in your browser.

Inputs used

Total crawlable URLsminimum 1
45,000
Pages crawled per dayminimum 1
2,200
Share of crawl spent on low-value URLsaccepts 0–100 %
35 %
Average server response timeminimum 1 ms
420 ms

Results

Days for a Full Crawl
31.47 days
Useful Pages Crawled per Day
1,430
Crawl Wasted per Day
770
Days for a Full Crawl After Removing Waste
20.45 days
Recommendation
Substantial crawl waste — block parameters and thin pages in robots rules

Step by step

  1. 1Values used
  2. 2Crawl Budget
  3. 3Days for a Full Crawl= 31.47 days
  4. 4Useful Pages Crawled per Day= 1,430
  5. 5Crawl Wasted per Day= 770
  6. 6Days for a Full Crawl After Removing Waste= 20.45 days
  7. 7Recommendation= Substantial crawl waste — block parameters and thin pages in robots rules

Assumptions and limits

  • The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

How is Crawl Budget calculated?

Days for a full crawl = crawlable URLs ÷ useful pages crawled per day Crawl budget is finite, and URLs that should not be indexed consume it. Faster server responses increase the rate search engines are willing to crawl, which is why performance affects indexing.

Why does Crawl Budget matter?

On large sites crawl waste is the main reason new content takes weeks to be indexed.

What values do I need to enter?

This calculator takes 4 inputs: Total crawlable URLs, Pages crawled per day, Share of crawl spent on low-value URLs, Average server response time. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.

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Crawl Budget Calculator – Calculate Days for a Full Crawl