Crawling and indexing as the cornerstones of Google search (How does Google get information?): The term “crawling” comes from English and in this context stands for the “rolling” of asynchronous and asynchronous machines. The so-called web crawler bundles information from several billion websites, which it chronologically arranges in Google’s index according to their relevance within a few seconds.
The Google Search Console includes several webmaster tools. These allow website developers to determine exactly how Google should crawl their site. They give specific information to the respective sides of their homepage.
Furthermore, they can ask Google to crawl their URLs again or, if they wish, prevent the crawling of their website. The search engine does not demand any monetary consideration from the users in order to “crawl” their homepages more often. It offers all website owners the same tools to ensure the best possible search results for users.
The Internet symbolizes a virtual library. Experts speak of a lending library with several billion books that is growing daily, but which is not subject to a central catalog system. For this reason, the web crawler searches for special software and websites that are accessible to the general public. The so-called crawlers go to their selected pages and visit the placed links. The process can be leveled with conventional Internet surfing. The crawlers jump from one link to another. They then send the relevant information to the Google servers.
If the crawler searches successfully, the website content appears as in a browser of an Internet presence. The clever helpers examine the most relevant elements. To these belong the keywords as well as the topicality of the homepage. They then note these in the search index.
The Google search index contains several billion websites and is 100 million gigabytes in size.
It works analogously to an index of a printed book. Each individual term found by the crawler is entered. During the indexing process, the search engine adds the respective web page to all the entries in the terms found on the homepage.
The Knowledge Graph serves as a valuable tool to make people, places, and things that are of great importance to the user easier to understand. That is why Google indexes not only website information, but also other types of information. For this reason, Google is able to search through reports from millions of books in numerous libraries, provide public transport timetable information, and provide data from various sources such as the World Bank.