Search engine marketing software helps businesses improve their visibility on search engine results pages, usually via paid advertising. SEM tends to be focused on two key areas - Search Engine Optimization (SEO) and Pay Per Click (PPC) optimization. In order to ensure a low Cost Per Click (CPC) through paid SEM channels, software often combines SEO and SEM principles to fine-tune the content and architecture of a website prior to the promotion of it. Besides leading to a potential decrease of the CPC across different channels, SEM software can increase the click-through rate and quality score of search ads and assist with bid management. While SEO is primarily the practice of promoting the visibility of a web page or website in a search engine’s organic results, it can have ancillary benefits in decreasing the costs of paid channels as well. Software can help improve the ranking of all types of content, including images, videos, and written content.