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Saturday, 20 July 2013

What Is SEO

Whenever you enter a question in an exceedingly computer programme and hit 'enter' you get a listing of net results that contain that question term. Users usually tend to go to websites that square measure at the highest of this list as they understand those to be additional relevant to the question. If you have got ever puzzled why a number of these netsites rank higher than the others then you want to apprehend that it's as a result of a robust web promoting technique referred to as computer programme optimisation (SEO).

SEO may be a technique that helps search engines realize and rank your website on top of the several different sites in response to a research question. SEO therefore helps you get traffic from search engines.

This SEO tutorial covers all the required info you would like to grasp regarding computer programme optimisation - what's it, however will it work and variations within the ranking criteria of major search engines.

1. however Search Engines Work


The first basic truth you would like to grasp to find out SEO is that search engines don't seem to be humans. whereas this could be obvious for everyone, the variations between however humans and search engines read sites are not. in contrast to humans, search engines square measure text-driven. though technology advances quickly, search engines square measure faraway from intelligent creatures which will feel the wonder of a cool style or fancy the sounds and movement in movies. Instead, search engines crawl the online, observing explicit {site|website|web website} things (mainly text) to induce a thought what a site is regarding. This transient clarification isn't the foremost precise as a result of as we are going to see next, search engines perform many activities so as to deliver search results – locomotion, indexing, processing, shrewd relevance, and retrieving.

First, search engines crawl the online to examine what's there. This task is performed by a bit of computer code, referred to as a crawler or a spider (or Google bot, as is that the case with Google). Spiders follow links from one page to a different and index everything they realize on their manner. Having in mind the quantity of pages on the online (over twenty billion), it's not possible for a spider to go to a website daily simply to examine if a replacement page has appeared or if AN existing page has been changed, generally crawlers might not find yourself visiting your website for a month or 2.

What you'll be able to do is to see what a crawler sees from your website. As already mentioned, crawlers don't seem to be humans and that they don't see pictures, Flash movies, JavaScript, frames, password-protected pages and directories, thus if you have got a lot of these on your website, you'd higher run the Spider machine below to examine if these goodies square measure visible  by the spider. If they're not visible , they're going to not be spider-ed, not indexed, not processed, etc. - in an exceedingly word they're going to be non-existent for search engines.

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