Most of black seo techniques do not work now. Others are too much a secret to be good. So white hat is the only solution for absolute majority.
Black hat SEO techniques are those, which are prohibited by all the search engines. These techniques and strategies are considered unethical and immoral. To say they are frowned upon is probably an gross underestimation. Some black hat SEO techniques can easily benefit a website however isn't a long term strategy for success. Search Engines are constantly figuring out what people are doing and when they do, you risk being excluded or banned from the Search Engines, which ultimately results in the loss of business. On the other hand, we have the white hat SEO techniques
White hat SEO and Black Hat SEO both Are Way Of taking Fastly Keywords Ranking No (SERP) Top Results. but If you Want Very Fast Results in minimum Times.So Mostly Seo Use Balck Hat SEO.Which Is Not Good Way Of SEO . Because it's Not Google Friendly Technique .and after Some Time Google Check your Work . and he Was Analise and down ur site all keywords ranking . but other side white hat SEO long Terms Technique but its very good way og SEO.And You Can Got It Better Results After Some Time . So Always Go With White Hat SEO For Best Results.