Do you know what is a spider?

Spiders are software programmes that search engines use to index web pages.

Because the internet is so densely packed with information, search engines require a way to filter out the most relevant results depending on a user’s search intent. Spiders assist in this endeavor.

They acquire textual and meta-information by following hyperlinks. They give it a score for the search engine depending on how relevant it is to the search query. As a consequence, they assist the Search Engine in presenting the most relevant material on its results page.