There are three most common types of SEO   for search strategy and includes: On-Page SEO, Technical SEO, and Off-Page SEO.

By breaking down your SEO strategy and thinking about SEO as these three categories, it will be much easier to organize and execute your optimization plans.

On-Page SEO

On-page SEO relates to the content on your website. It includes strategies to optimize an individual page on a website.

This type of SEO covers:

• Keyword research
• Content creation
• Keyword optimization
• Optimize your page titles.
• Optimize your H1 Tag.
• Optimize your headings.
• SEO for Images.

There are many tools that can be used to  do on page SEO.  Some  are  paid tools SEMRUSH,Ahrefs,Alexa  etc…

Technical SEO

Technical SEO relates to non-content elements of your website. It includes strategies to improve a site’s backend structure and foundation.

The types of SEO included in this category relate to:

• Site speed
• Mobile-friendliness
• Indexing
• Crawlability
• Site architecture
• Structured data
• Security

An easy way to check on the state of your technical SEO is by using tools like Alexa, Ahrefs, SEMrush and other SEO Audit Tool.

Off-Site SEO

Off-page SEO techniques help strengthen the influence and relationship your website has with other websites. It revolves around:

• Link Building. Link building is the process of getting SEO backlinks from other websites.

These backlinks act as ‘votes of trust’ and increase the authority of the target website

• Brand Promotion. Google likes to rank known brands high in the results because people trust them.

It includes strategies to build a website’s reputation and authority. These factors help search engines see that a website is an ideal search result because it is from a reputable, reliable, trusted source.