Types of SEO

The Easiest way of learning is to relate that topic (which one you know better) with some other easiest topic then you will easily understand the logic behind it and it will be easily memorable. The SEO techniques are classified into two broad categories. 

1. Black HAT  Techniques that search engines do not approve and attempt to minimize the effect of. These techniques are also known as spamdexing.

2. White HAT. Techniques that search engines recommend as part of a good design.

When I read about these two techniques I keep remind that these are the two players playing chess or some game  you can say. One is playing with full efforts which one is white SEO and the other one can do anything to win even cheating too. Exactly same logic is working here too these two both are the working same. One is doing all efforts or good things to win the position on search engine where are the other one is using cheats. 

White Hat SEO

You can say that this type of SEO is a good boy in the class who follow all rules, procedure or guidlines given by school teacher. Here Search Engine is the teacher where as the good boy is white hat SEO techniques. If you want to do White hat seo then you should have to think for your readers or visiters because if your content or web page would be attractive then numbers of visit will be more that is why it is said "web page content should have been created for the users and not just for the search engines.". If web page load time would be so quick and useful content on web pages will be available then it will attract customers. That is why these are call white hat SEO techniques. 

Black HAT SEO

An SEO technique, is considered as Black Hat or Spamdexing if search engine disapproved its ranking.  There are other techniques also where web pages attrach the search engine and when visitor click on that page it redirect to another web page. Redirecting users to a page that was different from the page the search engine ranked this is also considered in black hat.  Using hidden or invisible text or with the page background color, using a tiny font size or hiding them within the HTML code such as "no frame" sections. Repeating keywords in the metatags, and using keywords that are unrelated to the website content. This is called metatag stuffing. Creating low-quality web pages that contain very little content but are instead stuffed with very similar keywords and phrases. These pages are called Doorway or Gateway Pages. Creating a rogue copy of a popular website which shows contents similar to the original to a web crawler, but redirects web surfers to unrelated or malicious websites. This is called page hijacking.