Categories: S, SEO Glossary

Spider: A spider, also known as a web spider or web crawler, is an internet bot that systematically browses the World Wide Web, typically for the purpose of web indexing. Spiders are deployed by search engines to discover updated content on the internet, such as new websites, changes to existing websites, and dead links. They work by following links from one page to another and collecting data from these pages, which is then processed and indexed by the search engine, allowing for efficient information retrieval during user searches. Spiders are essential for maintaining an up-to-date search index and play a crucial role in the functionality of search engines, contributing to the breadth and accuracy of search results.