Now a Days these are the Types of SEO working......

There are two types of SEO,
1) On page Seo
2) Off Page Seo

There are only three types of SEO-
White Hat SEO
Black Hat SEO
Gray Hat SEO

Two Type of SEO

On-page SEO
Off-page SEO
Both are very important in SEO.

Two type of SEO. On-Page SEO and Off-Page SEO.

Here are only three types of SEO
White Hat SEO
Black Hat SEO
Gray Hat SEO

Seo is three type
Black hat seo
white hat seo
Gray hat seo

There are 3 types of SEO White Hat, Black Hat and Gray hat SEO but mostly we use white hat because White hat is useful for your website safety.

There are following the two types of Search Engine Optimization.
1. On-Page Activity
2. Off-Page Activity

Only white hat seo that includes on page optimization and off page link building is good for use. Gray or Black hat SEO not a wise methods to use.

There are two types of SEO:
On-page SEO
Off-page SEO

White Hat SEO and Black Hat SEO

White hat SEO utilizes techniques and methods to improve the search engine rankings of a website which don't run afoul of search engine (mainly Google) guidelines.

Black Hat SEO exploits weaknesses in the search engine algorithms to obtain high rankings for a website. Such techniques and methods are in direct conflict with search engine guidelines.

On Page and Technical SEO which will be done on the website and off page optimization which is link building.

You have 2 parts of SEO ON page and OFF page, and you have 3 types: White, Gray and Black hat SEO

Two types of SEO
1 On Page SEO
2 Off Page SEO