There are two types of SEO:
On Page
Off Page

Onpage SEO is used to make live changes or online changes in website like meta tags, title, robot.txt etc.
Offpage SEO is doing offsite activities like link building, blog posting, forum posting and many more.

Both activities are very much important in SEO to get better ranking for website.

There are different types of seo such as:
White hat seo
Black hat seo
Semantic seo
Blue hat seo

There are two types of SEO are
On page optimization
Off page optimization

normally 2 types but google time to time change seo term

SEO have two types
1)on page SEO: on page SEO is term used to promote your website with the help of internal terms like:
Page title,
Speed and quality,
Url structure.
Etc..........

2)off page SEO : is is about using other websites for getting more visiters.promoting your website using some techniques.

There are mainly two types of SEO.
on page SEO and off page SEO

On page
Off page
White Hat SEO
Black Hat SEO
organic seo
inorganic seo

On page
Off page

On-page SEO
Off-page SEO

Two types of SEO -

- Onpage & Offpage methods.

3 techniques are more important in SEO method

White Hat SEO
Black Hat SEO
Gray Hat SEO

How many type of SEO ?
 

The three kinds of SEO are: On-page SEO – Anything on your web pages – Blogs, product copy, web copy. Off-page SEO – Anything which happens away from your website that helps with your SEO Strategy- Backlinks. Technical SEO – Anything technical undertaken to improve Search Rankings – site indexing to help bot crawling.

How many type of SEO ?
 

On-Page SEO. On-page SEO, also sometimes referred to as on-site SEO, is the process of optimizing the content on your website. ...
Off-Page SEO. Off-page SEO is pretty much everything that does not happen on your website. ...
Technical SEO. ...
Local SEO.

How many type of SEO ?
 

The 6 types of SEO you need to boost your site traffic
On-page SEO. This is the kind of SEO that you're probably familiar with. ...
Off-page SEO. Defining off-page SEO is a bit more difficult. ...
Technical SEO. ...
Local SEO. ...
App store optimization. ...
YouTube SEO.