SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.
i3 - A dynamic tiling window manager designed for X11, inspired by wmii, and written in C.
Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.
dwm - dwm is a dynamic window manager for X. It manages windows in tiled, monocle and floating layouts. All of the layouts can be applied dynamically, optimising the environment for the application in use and the task performed.
SEOquake - SEOquake provides a browser extension to conduct on-page SEO audit.
Openbox - Openbox is a highly configurable, next generation window manager with extensive standards support.