There are two main types of SEO: on-page and off-page. On-page SEO involves optimizing a website's content to be easily understood by search engines and can improve search rankings quickly, though it only accounts for 25% of how sites are scored. Off-page SEO focuses on building a site's authority on the internet through links and citations from other websites, which takes longer to improve rankings but can move a site to the top of search results.

1. How many type of seo?
2 Kinds of SEO
On-Page SEO refers to how well your website's content is presented to search engines. This type of
SEO gets your site on the list of search results for a given keyword search and can usually be
improved quickly. Even though it accounts for only about 25% of how search engines score and rank
your website, it is worth tackling first since it is easy enough to do and provides almost immediate
improvement.
Off-Page SEO refers to your site's "authority" on the Internet, which is determined by what other
websites "say" about your site. Off-page SEO is about getting your site to the top of the list of search
results, and usually takes time to improve.