You can, but it's not necessarily ideal as both SEO and PPC (buying ads) help in different ways. PPC allows you to connect with customers when they need you, but SEO provides more exposure to your business in general, leading to better brand affiliation and prominence. It depends on your marketing strategy, but we often recommend a mix of PPC and SEO to increase your online presence for the long-term whilst also making gains immediately. SEO also helps you analyse your website, increasing its effectiveness, which naturally increases your PPC outcomes.