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How does Google work? Crawling, indexing and ranking explained

March 12, 2026 ·  9 min read

How Google works: crawling, indexing and ranking

To position your website on Google, you first have to understand how Google works. It's not a total mystery: Google itself documents much of how it works. What is not so obvious is how to apply that knowledge so that your Uruguay website appears before your competition's. In this article we explain it to you step by step.

Phase 1: Crawling

Google has automated programs called "crawlers" or "bots" (the best known is called Googlebot). These robots navigate the Internet by following links, from page to page, from site to site, continuously. Its goal is to discover new or updated web pages.

When a crawler visits your website, it reads its content, follows the internal links between your pages and saves that information for processing. How often Google visits your website depends on how long it has existed, how often you update it, and how many other sites link to it.

To help Google correctly crawl your website, your site must have: a file sitemap.xml (a map of all your pages), a file robots.txt (instructions on which pages not to crawl) and a consistent internal linking structure.

Phase 2: Indexing

After crawling, Google analyzes the content of each page and stores it in its index: a gigantic database with information on billions of web pages. If your page is indexed, it exists on Google's "radar" and can appear in search results.

You can check if your pages are indexed by searching on Google: site:tudominio.com. Google shows you all the pages of your site that it has in its index.

Not all crawled pages end up indexed. Google may decide not to index pages that are duplicates, have low-quality content, are blocked by robots.txt, or have a tag. noindex.

Phase 3: The ranking (Positioning)

When someone performs a search on Google, the system analyzes thousands of factors in milliseconds to determine which pages in its index are most relevant and useful for that specific search. This evaluation determines the order of the results: the ranking.

Google uses more than 200 ranking factors, although the most important ones include: the relevance of the content to the search, the domain authority (measured mainly by the backlinks it receives), the user experience on the site (speed, mobile-friendliness), and the user's intent (what kind of result they really need).

"Google does not index web pages: it indexes answers. Your page must answer your potential client's question better than any other."

The Google algorithm in 2026: the most important thing

Google updates its algorithm hundreds of times a year, with big updates that can significantly change rankings. The most relevant trends in 2026 are:

What can you do to make Google show you first?

The key is to align yourself with what Google values: relevant and quality content, a technically sound site, a good user experience and authority built over time. There are no permanent shortcuts: tactics that try to fool the algorithm work for a short time and then carry penalties that can eliminate your site from the results.

Working with a team that understands both web design and SEO from the beginning is the most efficient way to achieve sustainable Google results for your Uruguay business.

Do you want to know what factors Google uses to decide the ranking?

SEO positioning factors: what Google is looking at in 2026 →

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