A meta-search engine is a search tool that sends user requests to several other search engines and/or databases and aggregates the results into a single list or displays them according to their source. Metasearch engines enable users to enter search criteria once and access several search engines simultaneously.
I think a meta-search engine uses another search engine/s to to look for its results so it does not have necessarily have to crawl and index all the Internet web pages.
meta search engine is on page Seo , if you want to meta search engine work then you have analaysis website coding and check all meta keyword , this type you have to work in meta keyword.
The search engine visits billions of websites and creates a database or repository of sorts of the various sites. As it turns out a search engine that searches multiple sites but not the entire web is also known as a meta search engine (although the definition is not very popular). Google Custom Search Engines (CSE's) are an excellent example of such search engines. The part of meta search engine includes Meta tag, Meta description, Meta data etc.
Search engine usually have their own database of sites they craw and list in their database, for example Google, Yahoo, Ask. Meta Search Engines usually do not have their own database of crawled sites, they search the databases of real search engines, usually many search engines at the same time, and provide you results. So a meta search engine will give you results from say Yahoo and Google, some meta search engines do have database of sites submitted to them. Example of a meta search engine is DogPile.
Yes Dogpile is a meta search site search engine it searches multiple search engines, filters duplicate date and then provide the relevant results.
Search engines have a system of algorithms that works on crawling the information written in the body of the HTML. Meta search engines have a system of algorithms that crawls the meta tags, meta title and meta description of the HTML Examples for meta search engines are megaspider.com , metaspider.com , clasearch.com Examples for search engines are Google.com , Bing.com , Avasearch.com, Yahoo.com You also have meta-search engines for a number of specialist subjects such as navigatejob.com which is a job search engine.
SearchW3 is a meta search engine.
Search.com
That is not exactly true. A "meta search engine" pays importance only to the meta tags and meta discriptions of the HTML code. A search engine that searches many search engines is a mashed search engine, because it mashes the api of dfferent search engines. Examples for meta search engines are: http://metaspider.com/ or http://megaspider.com/ (very old) Examples for mashed search engines are: http://dogpile.com/ or http://avasearch.com/
An example of non-meta-search engine is Google unlike Bing
A meta search engine (or aggregator) is a search instrument that uses another search engine's information to deliver their own particular results from the Internet. Meta search engines take data from a client and all the while convey inquiries to outsider search engines for results.
yahoo