Just as CEOs have assistants and Santa Claus has elves, Google (like other search engines) has web crawlers. The name “web crawler”, or website crawler, web crawlers, all can sound a little strange. But what do these mysterious things track on the web and what exactly do they do? In this guide, we'll explain what web crawlers are, how search engines use them, and how they can be useful for website owners. We'll also give you information on how you can use our free website crawler, the Website Audit tool , to find out what web crawlers might find on your website and how you can improve your online performance as a result.
What is a web crawler and what does it do? A web crawler is an internet bot, also known as a web spider, automatic crawler or web robot, that works to systematically crawl the web. These bots are almost like email list the Internet's archivists and librarians. They extract and download information and content, which is indexed and cataloged in the SERPs to be displayed to users in order of relevance. That's how a search engine like Google is able to quickly respond to users' search queries with exactly what they're looking for: by applying its search algorithm to web crawler data.
Therefore, traceability is an essential attribute for website performance. How do website crawlers work? To find the most reliable and relevant information, a bot will start with a certain selection of web pages. It will search (or crawl) this data and go from the links mentioned in them to other pages, where it will do the same thing again. In the end, crawlers produce hundreds of thousands of pages whose information has the potential to answer your search query. The next step for search engines like Google is to rank all pages according to specific factors to present users with only the best, most reliable, most accurate and most interesting content. The factors that influence Google's algorithm and ranking process are many and constantly changing.
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