How Search Engines Work
How search engines work is a question many ask who want know
what it takes to get to the top and receive targeted traffic.
The search engine work, generally speaking in three different
phases including crawling a page, indexing a page and returning
results.
A search engine spider or robot (such as Googlebot) is an
automated program that scours the Web, following links and
looking for pages to crawl. This crawler will seek out millions
of pages every day as it is constantly looking out for new
pages and new content on old pages.
Once a robot crawls a page, it sends the information to the
search engine for indexing. The indexing process is ongoing
as the search engine is sorting through millions of pages
of text, images, video and other content in order to sort
it out and give it some sort of structure.
When the search engine has finished indexing a page internally,
it is time to display the page. The search engine results
pages (SERPs) display the title of the page plus a snippet
of information about each page so that visitors know a synopsis
of what the page is about before clicking on the link.
The SERPs are often called organic listings or natural listing
since there is no payment required to be in the area of the
search engine. The organic listings are typically on the left
side of the page, while paid listings (sponsored listings)
are on the right side and may be on the top and bottom as
well.
This is a brief overview of how search engines work. Of course,
the details are much more complex and in most cases proprietary.
But, with this basic informational structure, you will have
an understanding of how search engines find pages and display
them on the Internet.
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