mistakes done by SEO frequently

1.Use of Graphical header and menus

    Very often sites are designed with a graphic header.The upper part of a page is a very valuable place where you should insert your most important keywords for best seo. In case of a graphic image, that prime position is wasted since search engines can not make use of images. The text in it cannot be indexed by search engines and so it will not contribute toward the page rank. If you must present a logo, the best way is to use a hybrid approach – place the graphic logo at the top of each page and size it so that it does not occupy its entire width. Use a text header to make up the rest of the width.

    Internal links on your site should contain keywords, which will give an additional advantage in seo ranking. If your navigation menu consists of graphic elements to make it more attractive, search engines will not be able to index the text of its links. If it is not possible to avoid using a graphic menu, at least remember to specify correct ALT attributes for all images.

2.Use of session ID

    Some sites use session identifiers. This means that each visitor gets a unique parameter (&session_id=) when he or she arrives at the site. This ID is added to the address of each page visited on the site. Session IDs help site owners to collect useful statistics, including information about visitors' behavior. However, from the point of view of a search robot, a page with a new address is a brand new page. This means that, each time the search robot comes to such a site, it will get a new session identifier and will consider the pages as new ones whenever it visits them.If you want to improve your site's SEO then it is advisable to avoid the use of session in your site.

3.Hidden Text(SEO deception method)

Hidden text (E.g.text color is same as backgrount color) allows site owners to cram a page with their desired keywords without affecting page logic or visual layout.this invisible text will be seen by search robots. The use of such deceptive(fraud) optimization methods may result in banning of the site. It could be excluded from the index (database) of the search engine.

4.One-pixel links(SEO deception method)

Search engines consider the use of tiny, almost invisible, graphic image links just one pixel wide and high as an attempt at deception, which may lead to a site ban.