Often, they use different tactics like keyword tags, clean URLs, or internal linking. This helps to increase the website visibility which will eventually get you more sales and traffic.
Most of the time communication plays an important role. If some client hires SEO experts, they should be able to articulate things in better form for you and help you to understand why it is needed.

Inquire if the company collaborates with other comparable companies in your area. If they say yes, you might want to think about moving on. You will never wish to engage with a firm eager to assist and market for your competitors. Get as many free consultations as possible from various companies. Compare the results of each search engine optimization company evaluation. Examine how they came up with milestones, the strategies they used, and the outcomes they expect.