There are two sources of the traffic to any website; one is through the search engines and the other is without any use of search engines. Studies have revealed that the search engines account for the generation of 80% of the traffic to the websites. If the website is ranked high on the website, it is going to receive a lot of traffic, conversely poor ranking could adversely affect the traffic and the number of clicks on that website could be comparatively very less.
The ranking of any Website URL on the search engine list depends on the algorithm used by the search engine. Usually the search engines do not declare the details of the algorithms and the factors that affect the ranking. Most of the factors that affect the search engine listing are now known because of the trial and error method used by the designers.
Among all the factors affecting the search engine listing, the ability of the spider of the search engine to easily maneuver or traverse through the website is a prime consideration.
The spiders of the search engine consider the text on the web page but never consider the Java Script. Now if a designer has used a lot of Java Script to enhance the looks of the website, it may hardly have the desired effect on the search engine.
An alt tag that describes the image and is readable by the spider should accompany the image, because the writing in the images cannot be read by the spiders. If possible key words should be inserted in the alt tag.
If you want the spider of the search engine to rank the website higher in the search engine list then you need to make its work easy and this is possible by using valid CSS and XHTML codes. If the code is valid it ensures that the website is going to get uniform response from various browsers like Mozilla Firefox, Internet Explorer, Safari and Netscape. If the designer wants the best of results then one should use products like Dreamweaver from Macromedia or even hand coding. Invalid coding is usually possible when the designer used word processors and programs that are not designed for designing the website.
An online feature is provided by W3C, the body that governs the internet. With the help of this online feature, one can check the valid codes of CSS and XHTML used in the web design.
A visit to http://validator.w3.org and http://jigsaw.w3.org/css-validator helps to validate the XHTML and CSS coding respectively.
Some of the advantages of using valid CSS and XHTML codes are as follows
• It helps in making the website attractive
• It facilitates the easy crawling of spider of the search engine.
• It allows the website to be displayed on a number of browsers.
• It makes the tasks of maintenance of updating quite easy.
• It helps to minimize the time duration of loading the website
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