The goal for many sites is to appear in the first SERP for the most popular keywords related to their business. The search engine takes your keyword and returns search engine results pages ( SERP), with a list of sites it deems relevant or connected to your searched keyword.
![list of specialized search engines list of specialized search engines](https://www.techrepublic.com/a/hub/i/2011/04/27/db38ccac-c3ab-11e2-bc00-02911874f8c8/dbms_select_wonder_wheel.jpg)
How Do Search Engines Work?įirst of all, let's ask what is a search engine? A search engine is a program that searches the web for sites based on your keyword search terms.
![list of specialized search engines list of specialized search engines](https://si.wsj.net/public/resources/images/B3-FL826_fallba_4U_20191114195613.jpg)
Alta Vista was the first search engine to process natural language queries Lycos started strong with a system categorizing relevance signals, matching keywords with prefixes and word proximity and Ask Jeeves introduced the use of human editors to match actual user search queries. From improvements in web crawlers and categorizing and indexing the web, to introducing new protocols such as robots.txt so that webmasters have control over what web pages get crawled, to the introduction of voice search, the development of search engines has been the culmination of multiple search technologies that developed from different search engines. Search engines have come a long way since their early prototypes, as our Internet Search Engines History infographic illustrates. Infotopia is a Google custom search engine of selected sites, so you get reliable resources in your search results, while still enjoying Google`s search features.Modern search engines are pretty incredible – complex algorithms enable search engines to take your search query and return results that are usually quite accurate, presenting you with valuable information nuggets amidst a vast information data mine.
![list of specialized search engines list of specialized search engines](https://www.webconfs.com/wp-content/uploads/2017/08/300x250BW.png)
#List of specialized search engines professional
Find literature from academic publishers, professional societies, universities, court opinions, and other credible organizations.
#List of specialized search engines full
Google Scholar ranks documents by taking into account the full text, where the document was published, who authored it, and how often and how recently it has been cited in other scholarly literature.
![list of specialized search engines list of specialized search engines](https://www.lifewire.com/thmb/MCdHVGs5s5Ec8hv3-oUtsAJdT0o=/1770x1188/filters:no_upscale():max_bytes(150000):strip_icc()/Google-Videos-57240f2c3df78ced1fe05a21.png)