SEO is one of the most popular marketing disciplines involves the art of getting traffic from major search engines like Google, Yahoo and Bing. It is usually considered to be the best traffic source as it’s unpaid, organic and usually has higher conversion rates.
SEO is focussed on designing your site such that it is better understood by popular search engines. The traffic coming via SEO is often called as organic or natural or unpaid. All the search engines have different algorithms for ranking the website which may be based on freshness and originality of content, backlinks, metadata on pages, pagespeed, AMP pages in case of mobile pages, etc. However, the only drawback of SEO driven traffic is that these search engines change their search algorithm quite frequently and hence could affect your traffic significantly in a couple of days. Businesses relying heavily on SEO may face losses at any such algorithm update.