Web Design > Google Search > Google Glossary Collection A segment of a search index. Administrators can divide a search index into collections to show different results to different users; for example, by geography, product, or job function. Crawl To search a web site or server for documents and pages to index. Continuous crawl A crawl mode in the search appliance that sets the crawler to automatically locate and index content whenever content is updated. Frontend A user interface for search users. Administrators can change the look and feel of the search and the search result pages. Administrators can customize one or more front ends to display different colors, fonts, and designs. If a company has multiple collections (see collections), an administrator can make each front end appear in a different format with its own configuration options. googleoff/googleon Special tags that you code into an HTML comment tag that stop and resume the indexing of text on a page. The googleoff tag stops a crawler from indexing and the googleon tag restarts indexing. For example, fish shark mackerel Index To extract information from documents and create an index of terms found in the documents. Index can also mean a list of subjects or words and their locations in a body of text. KeyMatch Administrator-defined keywords that promote specific web pages on a site. These keywords are associated with targeted URLs, so when search users type the keyword in the search box, they see the targeted URL displays above the main set of search results. Related queries (formerly synonyms) Administrators for the search appliances can use related queries to associate alternative words or phrases with specified search terms. When a user enters the specified search term, the alternative appears as a suggestion. PageRank (Enterprise PageRank) Enterprise PageRank is a link analysis algorithm that assigns a numerical weighting to each element of the hyperlinked set of documents in the content for an enterprise, with the purpose of measuring its relative importance within the set. Snippets Small section of text summarizing a search result. Snippets are key phrases that contain query terms in matching documents.