Below is a general explanation of how search engines work, with some extra details on our smart search engine. This information is provided to help you construct better queries and find the information you're looking for. We also provide a list of other search engines available on the Web. For specific searching tips, visit our Smart Search searching hints page. A team effort Web search engines in general work by searching the web for documents and adding information about the documents to an internal database.
Users can then query the database to find documents they desire.
The part of the program that searches the web is commonly called a web crawler , web spider, or robot. The part which reads the page and builds the information database is the indexer. The client sends the requests you enter to the server , which accesses the database and returns your results. This is a prime example. The web crawler determines how many and what variety of documents a search engine offers.