How Google Search Engines Work: Crawling, Indexing, Ranking (Three Musketeers SEO)

This post discusses how Google search engines work in indexing and ranking a website or blog. It includes three processes called "Three Musketeers of SEO" namely Crawling, Indexing, and Ranking.
How Google Search Engines Work: Crawling, Indexing, Ranking
How Google Search Engines Work: Crawling, Indexing, Ranking
The two pictures above illustrate how search engines like Google and Bing work:
  • Encroachment or crawling
  • Indexing
  • Ranking (ranking).
All three are done by Googlebot or search engine robots. At first, Googlebot penetrated millions and even billions of web pages to find our blog.

Encryption results are included in the list or indexing alias data. After entering in the data, Google then ranks blogs that are presented on search results pages (SERP, Search Engine Result Pages).

Definition & Process of Crawling, Indexing, Ranking

1. Crawling
Crawling is about discovery. The process is very complicated and uses a software program called spider (or web crawler). Googlebot is, perhaps, the most popular crawler.

Crawlers start by taking a web page and then following the link on that page, taking the page and following the link on that page and so on, to the point where the page is indexed.

For this method, crawlers use the parsing module, which does not create pages but only analyzes the source code and extracts any URL found in the <a href="..."> script. Crawlers can validate hyperlinks and HTML code.

You can help Google and tell crawlers which pages will be crawled and which are not crawled.

The "robots.txt" file tells search engines whether they can access and crawl your site or only a few parts.

Using this method, you give Googlebot access to code data. You must use the robots.txt file to show Google what your users want to see, because if you don't, you might have a page that you want to access and don't want to be indexed.

Using this tool, you can block or manage various crawlers. Check your robots.txt file to avoid errors and downgrading.

At present, most robots.txt files include an XML sitemap address that increases the speed of crawl bot, which is useful for your website.

In the crawling process, Googlebot has a leading role. On the other hand, in the indexing process.

2. Indexing
The indexing phase is all about analyzing URLs and understanding their content and relevance. The indexer also tries to render pages and run JavaScript with the web rendering service (WRS).

You can find out exactly how WRS looks at your page if you go to the Search Console and use the Fetch and Render feature.
  1. Practically, these two phases work together:
  2. Crawlers send what they find to indexers;
  3. The indexer gives more URLs to the crawler.
3. Ranking
After this stage is complete and no errors are found in Search Console, the ranking process must begin.

At this point, webmaster and SEO experts must try to offer quality content, optimize websites, generate, and make valuable links follow Google's quality guidelines.

In conclusion, crawlers don't create content, indexers do it. Crawlers take content.

Now, you can understand that you know how search works, how websites are created, and the relationship between JavaScript and SEO.

The information search process includes crawling, indexing, and ranking.
In the crawling phase the website is taken, then at the indexing stage the site is rendered. Googlebot (crawler) takes websites and indexers to create content.

Google says it knows more than 130 trillion pages on the web. Actually, it might be far more than that amount.

There are many pages that Google avoids from crawling, indexing, and ranking processes for various reasons.

To keep the results relevant for users, search engines like Google have a well-defined process to identify the best webpages for each search query given. And this process develops over time because it functions to make search results better.

Basically, we try to answer the question: "How Do Google Search Results Work?".
In short, this process involves the following steps:
  1. Crawl - Follow the link to find the most important pages on the web
  2. Indexing - Stores information about all pages taken for later retrieval
  3. Ranking - Determines about each page, and how it should rank for relevant questions
Search engines have crawlers (aka spiders) that "crawl" the World Wide Web to find existing pages to help identify the best web pages that will be evaluated for requests. The travel method used by crawlers to travel is a website link.

Indexing is the act of adding information about a web page to a search engine index. An index is a collection of web pages - databases - that include information about pages crawled by search engine spiders.

Indexing Factor:
Relevance: The extent to which the content on a web page matches the searcher's intent (meaning what the searcher wants to achieve with that search, which is not a small business for search engines - or SEO - to find out).

Usability: Web pages are considered more important than quoted elsewhere (consider this quote as a vote of confidence for that webpage). Traditionally, this has come in the form of links from other websites to the webpage, but there may be other factors that play a role.

Search engines rank pages based on their relevance and importance.
In 2016, Google confirmed: content is one of the top 3 ranking factors for web pages.

Discussion of How Google Search Engines Work: Crawling, Indexing, Ranking (Three Musketeers SEO) reinforces SEO Tips about the importance of quality content and links, as well as the initial steps to optimize the blog by registering in Webmaster Tools - including Sitemap and Fetch as Google.

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