Search Engine Optimization

Crawling Budgets: Prioritising Large Sites Effectively

Crawl budget matters most on very large or frequently changing sites where discovery competes with server limits. Tighten internal linking, avoid infinite spaces, and ensure the mobile version exposes all essential links.

When does crawl budget optimization provide the most benefit?

On small blogs under 100 URLs

Only when a site blocks all bots in robots.txt

Only for sites using HTTP/1.1

On very large or fast‑changing sites where Googlebot must prioritize URLs

Google emphasizes crawl budget mainly for large, frequently updated sites; small sites are usually crawled promptly.

Which issue commonly wastes crawl budget on enterprise sites?

Using WebP images

Infinite spaces from faceted filters or calendar pages

Serving CSS over HTTP/2

Having a sitemap index

Endless URL combinations trap crawlers and displace important pages from being revisited.

What’s the recommended linking practice for sites with different mobile and desktop layouts?

Hide deep links behind JS that requires user clicks

Put links only on desktop menus

Ensure the mobile version contains all critical links present on desktop

Serve different XML sitemaps for mobile and desktop with conflicting URLs

If mobile omits links, discovery slows under mobile‑first indexing and fewer URLs are reached.

Which signal can slow crawling if degraded?

Use of SVG icons

Server responsiveness and error rates

Presence of Open Graph tags

Fewer than two H1 tags per page

Crawl rate adapts to site health; timeouts and 5xx errors can reduce fetches.

What is a safe way to reduce crawling of low‑value parameter pages?

Disallow patterns in robots.txt after confirming they aren’t needed for indexing

Set noindex alone and expect crawl savings

Block CSS and JS globally

Return 200 for removed pages

robots.txt exclusions can reduce fetching; noindex doesn’t necessarily conserve crawl resources.

Which sitemap approach helps large sites prioritize?

Include blocked URLs to show intent

Segment sitemaps and refresh high‑change sections more frequently

Use a single 50 MB XML file for everything

List only the homepage

Segmented sitemaps help search engines focus on fast‑changing areas and monitor freshness.

If Googlebot is overwhelming your servers, what is Google’s guidance?

Disable HTTPS until traffic falls

File a special request to reduce crawl rate while you stabilize

Request a crawl rate increase

Serve 200 for all requests to keep Google happy

Google provides an exception process to throttle crawl rate when needed.

Which practice helps conserve crawl budget while preserving user navigation?

Block all bots site‑wide

Use canonicalization and internal links to consolidate duplicate variants

Add infinite UTM parameters to internal links

Duplicate every page across multiple subdomains

Canonicals and clean IA reduce duplicate URL surfaces competing for crawl attention.

How should you monitor crawl efficiency at scale?

Track log files for status codes, response times, and hit distribution by directory

Disable analytics on mobile

Count homepage pixels monthly

Measure number of font families

Logs reveal how bots spend requests and where server strain or dead ends occur.

What’s a good KPI pair for crawl‑budget programs?

Number of PDFs downloaded by users

Total backlinks per day only

Share of important URLs crawled in the last 7–14 days and proportion of bot hits on low‑value paths

Average image hue and favicon size

Frequency on key URLs and waste on unimportant paths ties changes to outcomes.

Starter

Starter: Eliminate infinite spaces and shore up server health; prioritize key sections in sitemaps.

Solid

Solid: Strengthen internal discovery on mobile; tune robots and parameters; monitor logs weekly.

Expert!

Expert: Align crawl allocation to business value; automate anomaly alerts and budget guardrails.

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