Long tail in SEO refers to the strategy of targeting highly specific and less competitive keywords or phrases in order to drive targeted traffic to a website. This approach focuses on the “long tail” of search queries, which are less frequently searched for but can still attract a significant amount of traffic when combined. By optimizing for long tail keywords, businesses can increase their chances of ranking higher in search engine results and reaching a more niche audience. This can lead to higher conversion rates and a more cost-effective SEO strategy overall.