Semrush Holdings, Inc. is an American public company that has a SaaS platform known as Semrush. The platform is used for keyword research, competitive analysis, site audits, backlink tracking, and comprehensive online visibility insights. The keyword research tool provides various data points on each keyword. The platform also collects information about online keywords gathered from Google and Bing search engines. It was released by Boston-based company Semrush Inc, founded by Oleg Shchegolev and Dmitri Melnikov.
https://en.wikipedia.org/wiki/Semrush