How Search Engine Works
Most searh engines have three parts:
.Let's look at each part
individually to get a better understanding of them. Each part
has its own role to play in the process, with all parts working
together to make searches possiple.
1.The Crawler:
Also known as a "spider" or "bot", this part of the search
engine wanders the web, following links and picking up
information for its database. Crawlers do most of their work at
times of the day when searh engines are less busy, but they
typically visit frequently updated pages more often. This is
something to keep in mind when you are working on your pages.
Your site's title and text(your content) are the most important
thing to a crawler. The fastest way to raise your site's search
engine ranking for specific key words is to implementthem into
your title and your content.
2.The index.
Once the crawler has collected all that text, it is then stored
and indexed. This allows people searching for key words and
phrases to get results relating to what they were searching for
- their search results. Most sites will incorporate rating
systems such as Google Page Rank or Alexa Rankings in
positioning your site. These ratings are used attempt to ensure
that sites that are important receive more traffic than
unimportant sites. To see this in action, go to a search engine
and type in a word. You'll see some text on the page saying
something like "results 1-10 of 1,234,000". This means that the
search engine's index contains 1,234,000 pages it believes are
related to the word you typed. If you wanted to, you could look
through all these pages to find the information you're looking
for.
In order to understand rating systems more thoroughly consider
your own site. When you place links on your site you generally
do so to increase your users understanding of the content of
your site.
If every site in a particular field links to a particular site,
this site is probably very important to that field and should,
therefore, be listed highly in the lists of search engine
results. This is the basic ideology of Google Page Ranks.
Consider again , a site that receives a great deal of traffic,
it probably has some information or service that is very
important to its users. Alexa ratings attempt to estimate the
amount of traffic that a particular site gets and compare it to
the amount of traffic that other sites get. The closer that a
site is to the most trafficed site on the internet, the more
likely it is to have important content if it is relevant to
search query.
3.The Interface.
Search engines provide a public intrface for users who want to
find information on the web. They can type the word or phrase
they're searching for, and the interface will run an algorithm
to find the pages relevant to their search and display them.
These algorithms are an important part of the SEO(Search Engine
Optimization) business. You'll notice when the algorithms
change, the rankings of your website will change with them. No
two search engines have the same algorithms. They all work
differently, with their unique features, and they will all
respond to your website in their own way.
The most popular search engines today include Google, Yahoo,
MSN, Alltheweb, and AskJeeves.
About the author:
Hassan Sarsour
Make easy money online
www.easynewmoney.com