Just think of the moment, you went to a book shop and ask for a computer book. The shopkeeper will look at you with some viered expressions for few seconds and will ask certain question to better understand your need.
Unfortunately, search engine don't have ability to ask questions to focus your search as a shopkeeper can. They also can't reply on judgment and past experience to rank web page, in the way humans can.
So the question comes how exactly search engine works, just think of that shopkeeper once again, let us assume he as asked you certain question to better understand about your need, now its time to give you the book, what he'll do is go to the particular location where he keeps books related to topic you were looking at and then finds the book from the rack and gives it to you.
Now the main thing search engine uses is the
LOCATION, LOCATION, LOCATION and frequecy...
Yes, this is the one of the main rule in the ranking alogorithm which involves teh location and frequecy of keywords on a web page. We can also call it as location/frequency method.
Remember the shopkeeper mentioned above? They need to find books to match your request of "computer book", so it makes sense that they first look at the books with computer in the title. Same way search engines operate. Pages with the search terms appearing in the HTML title tag are often assumed to be more relevant than other topics.
Search engine also check to see if the search keywords appear near the top of a web page, such as in the headline or in the first few paragraphs of text.They assume that any page relevant to the topic will mention those words right from the beginning.
Frequency is the other major factor in how search engines determines relevancy. A search engine will analyze how often keywords appear in relation to other words in a web page. Those with a higher frequency are often deemed more relevant than other web pages.
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