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Search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites ...
Pages in category "Internet search engines" The following 200 pages are in this category, out of approximately 239 total. This list may not reflect recent changes .
Web search engines are listed in tables below for comparison purposes. The first table lists the company behind the engine, volume and ad support and identifies the nature of the software being used as free software or proprietary software .
A search engine maintains the following processes in near real time: [34] Web crawling; Indexing; Searching [35] Web search engines get their information by web crawling from site to site. The "spider" checks for the standard filename robots.txt, addressed to it. The robots.txt file contains directives for search spiders, telling it which pages ...
This page was last edited on 14 July 2023, at 13:14 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may ...
Also, when returning Wikipedia articles in a regular search, mirrors and forks of Wikipedia content frequently rank higher than the actual Wikipedia articles because of search engine optimization techniques. These issues may be less of a problem when using certain search engines that process Wikipedia differently: Google tends to include ...
Databases and search engines differ substantially in terms of coverage and retrieval qualities. [1] Users need to account for qualities and limitations of databases and search engines, especially those searching systematically for records such as in systematic reviews or meta-analyses. [2]
Robin Li developed the RankDex site-scoring algorithm for search engines results page ranking [23] [24] [25] and received a US patent for the technology. [26] It was the first search engine that used hyperlinks to measure the quality of websites it was indexing, [27] predating the very similar algorithm patent filed by Google two years later in ...