Crawlers, or web crawlers, are software programs that systematically search the Internet and “crawl” it for content. They analyze and index content such as text, images and videos. Search engines are the primary providers that use crawlers to index websites. Their task is to analyze and index websites so that they can be included in a search engine’s database.
Crawling and indexing: how does it work?
When crawlers visit a website, they examine all the links on that website and follow them to the other websites those links lead to. Through this process of cross-linking, web crawlers discover new websites. Once a crawler discovers a new website, it indexes all the pages on that website so that they can appear in search results. In search engine optimization, Cross-Linking is therefore particularly important.
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