Do I need SEO? Actually, the answer to this question depends entirely on the purpose of the website you own or work on and on you. In fact, if the number of visitors to your site is sufficient for you due to your top ranking or location and you think your site has achieved its purpose, you do not need any other work such as SEO work or advertising. If you are aware of the importance of your website reaching more people or being at the top rankings in terms of your advertising, then you need SEO. You can eliminate this deficiency by starting to work with a professional web design agency.