There are two major SEO techniques usually practiced by many SEO experts around the world. The two major classification of SEO techniques are the black hat and the white hat. White hat is the technique that is usually considered to be the part of a good SEO design. The technique of black hat is considered to be the illegal and the one that is not approved by the search engines. Search engines normally try to minimize the effects of black hat technique based web sites and some times remove the same from their index list. Through a white hat technique the results achieved are long lasting and are more recommended by many top SEO experts. Black hat technique based web sites are banned by search engines either temporarily or permanently on finding the case. Best search engine optimization companies such as SEOP.com offer a constant increase in the page rank of their client’s web sites. Many SEO techniques and strategies are continuously followed by companies like SEOP.com to offer best quality traffic for web sites. When a search engine optimization technique fulfills and meets the guidelines of the search engine then the technique is said to be of white hat category. A legal SEO is normally called as a white hat SEO. Generally there are no specific rules or guidelines laid by any search engine for white hat techniques. According to a white hat category the search engines emphasis on the point that the content used for increasing the page rank of a web site must be the same as the one that the user will actually see.