Search Indexer is a program that reads the text of the documents to be searched and stores them in an efficient searchable form usually called the index or the catalogue. Web site indexers save files in a web server directory, to make it easy for the search engine to find it when clicks on the keyword or looks for information on a website. Distant search engines save the information of index files on their particular servers. Here is how different Indexers work!Local File Indexers index files based on their location in the directory and will index by file name, type, extension, and/or location. These indexers can also check for system update to see if some indexes are new or have been modified.Removal of Duplicate Files is done regularly by local file indexers; therefore search results don”t show many copies of the same page.

Local indexers will get the page exactly as it appears on the local disk and not include dynamic data. Which is really a good thing because many a times dynamic elements of a website like navigation bars are repeated unnecessarily. A webmaster has to be careful about which files are allowed to stay in the indexed site directory. If incorrect files are indexed, visitors can get access to these files via the search engine. Robot Spider Indexers locate files to index by following links. They use HTTP and are slow compared to local file indexers. Unlike the local file indexers, Robot spider indexers will display each page exactly as a browser. Unfortunately, they are unable to catalogue unlinked files, therefore ignore extra files in the directory.

Search Indexer is a program that reads the text of the documents to be searched and stores them in an efficient searchable form usually called the index or the catalogue.