RankpediaA plain-English encyclopedia of search

Crawl Google

Crawling is when Google’s automated programs discover and request web pages so they can be analysed for search.

If you assume a crawled page will automatically rank or even be indexed, you are confusing two separate stages of search.

Key points

  • Make internal links crawlable so Googlebot can follow them to important pages.
  • Use robots.txt to block crawling only on pages you never want indexed.
  • Submit a sitemap to inform Google about new or updated URLs.
  • For large or frequently changing sites, manage crawl budget so Google focuses on key content.
  • Do not rely on infinite scroll without a paginated fallback for crawlers.

A new blog post that never got indexed

You publish a blog post with a unique URL but link to it only from a JavaScript menu that Googlebot cannot render. The crawler never discovers the page. Six weeks later, you check Search Console: the URL is 'not found' in the index. You add a static HTML link from your homepage, and within three days Googlebot requests the page. Crawling is the gatekeeper; without it, indexing never starts.

Three situations where crawl decisions change your outcome

  • Blocked by robots.txt If you disallow a page in robots.txt, Googlebot will not request it. That page cannot be indexed, even if other sites link to it.
  • Uncrawlable JavaScript Links injected by JavaScript after page load may be invisible to Googlebot. Use static HTML or server-side rendering for navigation.
  • Crawl budget waste On large sites, Googlebot may spend its crawl budget on low-value pages like session IDs or filter parameters, missing recent updates.

Three ways it goes wrong

  • Confusing crawl with index A crawled page still may not be indexed or ranked. Google decides whether to index based on content quality and uniqueness.
  • Blocking indexable pages Using robots.txt to block pages you want indexed prevents Google from even seeing them. Use noindex meta tags instead.
  • Relying on uncrawlable links Links in images, JavaScript events, or forms are not crawlable. Every important page needs a standard HTML anchor link.

Common questions

What is Google indexing in SEO?

Indexing is the second stage after crawling, where Google stores and organises the page content for search results.

How do I check if Google has crawled my page?

Use the URL Inspection Tool in Google Search Console to see the last crawl date and status.

Does crawling guarantee ranking?

No. A crawled page may still be excluded from the index or rank poorly based on content and relevance.

Sources

  1. Google Search Central - How Search Works Official overview of crawling, indexing, and serving stages.
  2. Google Search Central - Crawling and indexing overview Detailed guidance on crawl signals and best practices.
  3. Google Search Console Help - Crawling Help article on crawl errors and how to improve crawlability.
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