Vrite - Open-source, headless CMS for technical content.

Docuie - Docuie provides the simplest hosted documentation platform. Affordable and beautiful, write documentation easily.

Serpstat - Search analytics, Rank tracking, Backlink analysis and Site Audit tool.

Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!

ReadTheDocs - Spend your time on writing high quality documentation, not on the tools to make your documentation work.

Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.