SEO (Search Engine Optimization) agencies help businesses improve their website’s visibility on search engines like Google. They optimize site content, structure, and technical elements to rank higher for relevant keywords. These services include keyword research, on-page optimization, link building, and improving site speed and mobile-friendliness. With better SEO, a website attracts more organic (unpaid) traffic, leading to increased brand awareness and potential sales from users actively searching for related products or services.