If you are planning to hire a marketing agency that offers affordable SEO services, make sure they understand your business well, and make the online marketing strategies according to your business prospects. While searching for a suitable SEO service agency, make sure they include the underlying services, and make cost-effective strategies. Also known as on-site SEO, focuses on the optimization of your website in such a way that it starts reflecting in the Google SERPs. It includes on-page factors like meta title, meta description, URL optimization, image optimization using Alt tags, Keyword placement, and density.