Search engines are programs that
search documents for specified keywords and return a list of the documents
where the keywords were found. A search engine is really a general class of programs;
however, the term is often used to specifically describe systems like Google,
Bing and Yahoo!
The search engine is a tool that is
web-based which enables the users to find the information on the World Wide
networking. The most well accepted examples of the search engines are the
Google, MSN and Yahoo, Ask, Aol. search. These Search engines make use of the
computerized software apps such as spiders, bots and robots that take a trip
beside the Webs, and follow the links from site to site and page to page. These
search engines are the special programs that could search the specific keywords
and the lists of that document where these key words are placed.
How Search Engine Works?
The first basic truth you need to
know to learn SEO is that search engines are not humans. While this might be
obvious for everybody, the differences between how humans and search engines
view web pages aren't same. Unlike humans, search engines are text-driven.
Although technology advances rapidly, search engines are far from intelligent
creatures that can feel the beauty of a cool design or enjoy the sounds and
movement in movies. Instead, search engines crawl the Web, looking at
particular site items (mainly text) to get an idea what a site is about.
Although the basic principle of
operation of all search engines is the same, the minor differences between them
lead to major changes in results relevancy. For different search engines
different factors are important. There were times, when SEO experts joked that
the algorithms of Bing are intentionally made just the opposite of those of
Google. While this might have a grain of truth, it is a matter a fact that the
major search engines like different stuff and if you plan to conquer more than
one of them, you need to optimize carefully.
There are many examples of the
differences between search engines. For instance, for Yahoo! and Bing, on-page
keyword factors are of primary importance, while for Google links are very,
very important. Also, for Google sites are like wine – the older, the better,
while Yahoo! generally has no expressed preference towards sites and domains
with tradition (i.e. older ones). Thus you might need more time till your site
gets mature to be admitted to the top in Google, than in Yahoo!
