The ranking factors targeted by SEO services will depend on your SEO plan. A full service plan will optimize for on-page, off-page and technical SEO, while an off-page SEO plan will optimize for off-page SEO.
Search engines such as Google use over 200 ranking factors.
The most notable factors include:
Your backlink profile, which is primarily the quality and quantity of external sites that link to you.
Your content, including keyword targeting, keyword integration, and content usefulness.
Your user experience, including page speed, usability, mobile friendliness, etc.
Whether your SEO plan will be optimized for these ranking factors depends on your SEO service provider.
A freelancer, for example, may focus on specific areas of SEO, such as off-page SEO. In contrast, a consultant may specialize in SEO audits, while an agency may offer plans that include on-page, off-page, and technical SEO.
To get the most accurate information on what SEO services include, contact a service provider. They can provide your business with a list of deliverables, as well as pricing, which your team can then use to compare SEO plans.