hypertextbook.com — September 2026 traffic, keywords & AI visibility

Search engines send hypertextbook.com an estimated 80,600 visits a month. Effectively all of it is organic — about 80,600 visits from unpaid results. Spread across 12,300 ranking keywords, that averages roughly 6.5 organic visits per keyword.

hypertextbook.com scores 97 out of 100 on our AI visibility scale, grade A+. It takes full marks for LLMS.txt, SEO health, Crawlability and Structured data. The biggest gap is Company profile, at 22 of 25 points (7/8 core fields), worth 3 points if closed.

The llms.txt on hypertextbook.com runs to 149 lines (8,528 characters) across 12 sections, last generated in May 2026. It introduces the site as "HyperTextbook". It tells AI engines the business works in Online Education, Educational Resources and STEM Textbooks. It describes 4 products, with prices such as Physics HyperTextbook at Free, Mathematics HyperTextbook at Free and Interactive Simulations at Free. Services it lists include Online Physics Tutoring Resources, Math Problem Solvers, Concept Maps and Exam Prep Materials. The audience it names is Students, Teachers, Lifelong Learners, aged 13-30 (Global). Technologies it mentions include HTTPS, Viewport Optimized, Robots.txt, XML Sitemap and HTML/CSS/JS. The keywords it claims start with "hypertextbook", "free books", "online education" and "educational resources".

# HyperTextbook

## About
HyperTextbook is a longstanding online platform delivering free, interactive textbooks primarily in physics and mathematics, designed to make STEM education accessible to everyone. It features hyperlinked content that connects related topics, simulations for visualizing concepts, and detailed explanations that rival paid textbooks. High school and college students rely on it for homework, exam prep, and self-study, while teachers incorporate it into classrooms worldwide. The site's no-frills approach ensures fast loading and focus on learning, without distractions like ads or paywalls. From classical mechanics to electromagnetism in physics, and algebra through calculus in math, coverage is thorough and updated based on user needs. Interactive elements like draggable diagrams and formula calculators enhance understanding. It's particularly valuable in underserved areas lacking physical books. The platform fosters independent learning by encouraging exploration via internal links. Educators praise its accuracy and pedagogical style. Over two decades, it's built a loyal following through word-of-mouth. Content is crafted by experts to promote deep comprehension over memorization. Users can access it on any device, making it ideal for mobile study sessions. Community suggestions have refined many sections. In the crowded EdTech space, HyperTextbook shines

Google lists hypertextbook.com for about 12,300 keywords, which together bring an estimated 80,600 organic visits a month.

The latest technical audit of hypertextbook.com scored 96 out of 100 overall. All 3 sub-scores are 90 or above. The audit makes 12 recommendations in all, and 3 of the 4 listed first are rated high priority or critical.

HyperTextbook's company profile names https://openstax.org, https://khanacademy.org, https://coursera.org and https://edx.org as competitors. Its own llms.txt adds https://textbookrevolution.org and https://projectgutenberg.org. Outside its market, the domains ranked closest to it in our worldwide ranking are dokiraw.me, meisterdrucke.com, wdistances.com and alationcloud.com.

https://openstax.org

https://khanacademy.org

https://coursera.org

https://edx.org

https://textbookrevolution.org

https://projectgutenberg.org