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Search engine indexing is the collecting, parsing, and storing of data to facilitate fast and accurate information retrieval.Index design incorporates interdisciplinary concepts from linguistics, cognitive psychology, mathematics, informatics, and computer science.
There are a variety of ways in which Wikipedia attempts to control search engine indexing, commonly termed "noindexing" on Wikipedia. The default behavior is that articles older than 90 days are indexed. All of the methods rely on using the noindex HTML meta tag, which tells search engines not to index certain pages. Respecting the tag ...
Major desktop search program. The full trial version downgrades after the trial period automatically to the free version, which is (anno 2018) limited to indexing a maximum of 10.000 files. Proprietary (30 day trial) DocFetcher: Cross-platform Open-source desktop search tool for Windows and Linux, based on Apache Lucene: Eclipse Public License
It is important to note that turning off Search History doesn't clear previously saved search history. To turn on or turn off Search History: 1. Go to AOL Search. 2. If you're not already signed in, sign in to AOL Search using your Username and Password. 3. Click Settings at the bottom of the page. 4. Click the Search History section and choose ...
Web indexing, or Internet indexing, comprises methods for indexing the contents of a website or of the Internet as a whole. Individual websites or intranets may use a back-of-the-book index, while search engines usually use keywords and metadata to provide a more useful vocabulary for Internet or onsite searching.
mnoGoSearch is a crawler, indexer and a search engine written in C and licensed under the GPL (*NIX machines only) Open Search Server is a search engine and web crawler software release under the GPL. Scrapy, an open source webcrawler framework, written in python (licensed under BSD). Seeks, a free distributed search engine (licensed under AGPL).
The noindex meta tab is merely a request to web crawlers - Google generally honors these - but some search engine may not. Finally, being available for indexed doesn't require or "push" a notice to all of the search providers of the world - it is up to them to fetch and index a page - sometimes this is fast, sometimes it takes a long time.
Documents that are not indexed by search engines create what is known as the deep Web, or invisible Web. Google Scholar is one example of many projects trying to address this, by indexing electronic documents that search engines ignore. And the metasearch approach, like the underlying search engine technology, only works with information ...