While publishers charge $200 per textbook, LibreTexts quietly serves 5.8 million students monthly with zero subscription fees. This isn't just open education—it's a hostile takeover of the $100B textbook industry, built by a team smaller than a typical startup series A.

""10 times the power at a fraction of the cost" isn't marketing—it's math. With $5M revenue and 5.8M users, they're serving each student for less than $1 per year while beating Pearson's digital platforms on user engagement."

The tech stack reveals their pragmatic approach: jQuery and Bootstrap for reliability, Cloudflare for scale, and Tailwind CSS for modern UI. They're not chasing shiny frameworks—they're building a system that works for millions. The 35-person team includes a Chief Operating Officer, a Site Reliability Engineer, and an Outreach Coordinator, suggesting operational maturity beyond typical open-source projects.

• Revenue-per-employee of ~$143K—competitive with ed-tech startups 10x their size
• Direct traffic (21%) indicates strong brand recall and bookmark usage
• Top keywords show deep STEM coverage (chemistry, physics, math)
• The 'undefined' country traffic suggests either privacy-focused analytics or global reach that defies traditional geographic boundaries