6 Types of SEO

1. White SEO
White hat seo is an improves your search performance on a search engine results page, within the search engines' terms of service.

Source from:
https://seolearningtime.blogspot.in/p/white-hat-seo.html

2. Black hat SEO
Black hat seo practices violate the search engines' terms of service, just opposite to white hat seo.

Source from:
https://seolearningtime.blogspot.in/p/blog-page_9.html

3. Grey hat SEO
Gray Hat SEO practices belong in neither the Black Hat nor White Hat category because the terms of service regarding the issue are unclear, means 50% of White Hat + 50 % Black hat = is an Gray Hat SEO

Source from:
https://seolearningtime.blogspot.in/p/blog-page_81.html

4. Red hat seo
Read hat seo nothing but Local seo, within the search engines' terms of service, mainly red hat seo mainly focused by local business promoters.

Source from:
https://seolearningtime.blogspot.in/p/blog-page_66.html

5. Blue hat seo
Advanced Internet marketing and  search engine optimization techniques cover by Blue hat seo, The concept of Blue Hat SEO rose out frustration in the lack of advanced SEO knowledge made available to webmasters.

Source from:
https://seolearningtime.blogspot.in/p/blue-hat-in-seo.html

6. Green hat seo
Green Hat refers to the usage of SEO strategies, techniques and tactics that focus on a human audience opposed to search engines and completely follows search engine rules and policies.

Source from:
https://seolearningtime.blogspot.in/p/blog-page_30.html

What is SEO

                 SEO  is the process to earning the traffic for our website.

Search engine optimization is a methodology of strategies, techniques and tactics used to increase the amount of visitors to a website by obtaining a high-ranking placement in the search results page of a search engine including Google, Bing, Yahoo and other search engines.

Formula for Search Engine Optimisation Success

Success = Term popularity × Value of a view ÷ Competition

Why does my website need SEO?

The majority of web traffic is driven by the major commercial search engines, Google, Bing, and Yahoo!. Although social media and other types of traffic can generate visits to your website, search engines are the primary method of navigation for most Internet users. This is true whether your site provides content, services, products, information, or just about anything else.

Search engines are unique in that they provide targeted traffic—people looking for what you offer.Search engines are the roadways that make this happen. If search engines cannot find your site, or add your content to their databases, you miss out on incredible opportunities to drive traffic to your site.

Search queries—the words that users type into the search box—carry extraordinary value. Experience has shown that search engine traffic can make (or break) an organization's success. Targeted traffic to a website can provide publicity, revenue, and exposure like no other channel of marketing. Investing in SEO can have an exceptional rate of return compared to other types of marketing and promotion.