There's a common misconception that posting on social media helps increase your website's rank on search engines.
Social media does not directly contribute to SEO ranking, but the links you share across social platforms increase brand exposure.
Your shares across social media sites have no place in SEO rankings. Still, when more people share your content throughout social media, it generates social signals that indicate your posts are useful to your target market.
While social media doesn't directly increase your search engine rankings, it indirectly affects and helps build your brand.