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Δευτέρα, 16 Οκτωβρίου 2017

Layout optimization
Most search engines use programs called spiders or crawlers to index your site. These spiders or crawlers are nothing but programs that mimic human behavior but with the added capacity to tag and index everything that they visit. Generally speaking these crawlers go top to down and left to right. This means that the top left hand corner of your site is the most valuable piece of real estate while the bottom right hand corner is the least.
Knowing this will help you to optimize your layout better. For example if you are designing your home page, it would be a better idea to put in the links to other informational content on top and less important information like the about us link at the bottom.
Always tag pictures
Another thing that you should remember is that crawlers cannot read through graphics or scripts. This means that even if you subscribe to the belief that a picture is worth a thousand words, it is still a good idea for you to write a dozen words under the picture defining what it is. Only this text will be used by the search engine for its indexing purposes, which is why if you look up any result in Google images you will sometimes find that the images do not have anything to do with your search string, but the keywords would be present in its description.
Some people use this defect to leverage their site by adding in keywords that are not entirely suitable, and you are the only judge as to whether this is a risk worth taking. Search engines are always evolving, and if at some point in the future they redefine their algorithm so that they can identify such keyword stuffing, you will find that your website has all of a sudden lost its ranking. Google is definitely not going to notify the world that it is going to do this giving you time to change your site. When you find out it is already too late.