Last updated: August 2026
Global rank: Worldwide · 2026-08
#18,169
AI visibility: Grade A+
97
SEO health: Latest audit
87
Visits
924.1K
per month, estimated
Keywords
93.6K
ranking in Google
Organic share
100%
924.1K organic visits
LLMS.txt
Published
143 lines AI engines can read
You're seeing the free preview of openstax.org
openstax.org Web Traffic Statistics
Key findings
- OpenStax (Education) is ranked #18,169 worldwide in our August 2026 domain ranking, inside the top 100,000, up 3,715 places from #21,884 in July 2026.
- It is estimated to receive about 924,100 visits a month from search, 100% of it organic, across 93,600 ranking keywords.
- Its AI visibility score is 97 out of 100 (grade A+), with a published llms.txt of 143 lines.
- Its last technical audit scored 87/100, with "Optimize Image Sizes" the highest-priority fix.
| Month | Rank | Move |
|---|---|---|
| August 2026 | #18,169 | ▲ 3,715 |
| July 2026 | #21,884 | ▼ 4,048 |
| June 2026 | #17,836 | — |
| May 2026 | #17,836 | ▼ 2,011 |
| April 2026 | #15,825 | ▼ 1,524 |
| March 2026 | #14,301 | ▲ 154 |
| February 2026 | #14,455 | — |
What this company does
OpenStax creates and shares free textbooks for college-level courses across many subjects. The books are developed with input from educators and go through review processes to ensure they align with typical course requirements. Users can access the materials online, download them in different formats, or order print copies at a low cost. The focus stays on replacing expensive commercial textbooks with versions that i…
Our read on the site
Significant improvements needed. 1 high-priority issue.
openstax.org Traffic and Visitor Engagement
openstax.org draws an estimated 924,100 visits a month from search engines. Effectively all of it is organic — about 924,100 visits from unpaid results. Spread across 93,600 ranking keywords, that averages roughly 9.9 organic visits per keyword.
Monthly visits
924.1K
Latest estimate
Change
No monthly history yet
It starts building from the first scan
Organic visits
924.1K
100% of all traffic
Paid visits
0
No paid search detected
Organic vs paid
100%
0%
We don't hold a month-by-month history for this domain yet.
The traffic dashboard builds one from the first scan onwards.
openstax.org AI Visibility
On our AI visibility scale openstax.org earns 97 of 100 points, a 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.
Grade A+
Scored from this domain's own data — llms.txt, profile completeness, technical health, crawlability and structured data.
Present
7/8 core fields
100/100
robots ✓ · sitemap ✓
Detected
Fix these first
- → Complete your company profile so AI answers about you stay accurate.
openstax.org LLMS.txt
The llms.txt on openstax.org runs to 143 lines (6,398 characters) across 12 sections, last generated in March 2026. It introduces the site as "OpenStax - Free College Textbooks". It tells AI engines the business works in Education, Nonprofit and EdTech. It describes 4 products, with prices such as Free College Textbooks at Free, Open Educational Resources (OER) at Free and Instructor Resources at Free. Services it lists include Educational Support for Institutions and Professional Development for Educators. The audience it names is Students, Educators, Educational Institutions, aged 18-35 (Global). Technologies it mentions include HTML5, CSS3, JavaScript, Cloud Hosting and CMS. The keywords it claims start with "free college textbooks", "affordable education", "accessible learning" and "OpenStax textbooks".
Status
Published
AI engines can read it
Lines
143
In the file
Size
6.4K
Characters
Sections
12
Updated Mar 11, 2026
What the file says
# OpenStax - Free College Textbooks ## About OpenStax is a nonprofit educational initiative dedicated to providing free, peer-reviewed, openly licensed textbooks in multiple formats. The organization strives to improve access to high-quality educational resources, reducing financial barriers for students worldwide. By promoting equitable education, OpenStax enhances learning outcomes for diverse student demographics. Founded in 2011, it continues to support millions of users globally with its innovative approach to education. **Areas of Work:** Education, Nonprofit, EdTech ## Things to Remember - **Website:** https://openstax.org - **Address:** Houston, United States - **Contact:** [email protected] - **Phone:** Not Available - **Hours:** Mon-Fri: 9AM-5PM - **Timezone:** America/Chicago - **Currency:** USD - **Company Type:** Private - **Employees:** 75 employees - **Revenue:** Not Disclosed - **Hiring Status:** Yes, actively hiring ## Products - **Free College Textbooks** (Free): High-quality, peer-reviewed textbooks available for free in digital and print formats for various college subjects. - **Open Educational Resources (OER)** (Free): A collection of openly licensed teaching and learning materials to support educators and students. - **Instructor Resources** (Free): Supplementary materials such as lecture slides, test banks, and solution manuals for educators using Op
Sections in the file
Areas of work
Keywords it claims
Technologies
Products it tells AI about
- Free College TextbooksFree
- Open Educational Resources (OER)Free
- Instructor ResourcesFree
- Student Study GuidesFree
Services it tells AI about
- Educational Support for InstitutionsContact for quote
- Professional Development for EducatorsContact for quote
Competitors it names
Audience it targets
Students, Educators, Educational Institutions · 18-35 · Global
Company type
Private · actively hiring
openstax.org Organic Keywords
Google lists openstax.org for about 93,600 keywords, which together bring an estimated 924,100 organic visits a month.
Ranking keywords
93.6K
Found in Google for this domain
Visits they bring
924.1K
Estimated organic visits a month
Top ranking keywords
No ranked-keyword data cached for this domain yet.
Ranked Keywords pulls the full list on its first run.
What it ranks for
openstax.org SEO Audit
The latest technical audit of openstax.org scored 87 out of 100 overall. Performance is its weakest area at 55, while SEO scores highest at 100. The audit makes 12 recommendations in all, and 3 of the 4 listed first are rated high priority or critical.
Overall
SEO
Excellent
Performance
Accessibility
Excellent
Fix these first
- HighOptimize Image Sizes
- HighMinify CSS and JavaScript
- MediumImplement Lazy Loading
- HighReduce Server Response Time
8 more recommendations, with the exact changes and the pages they apply to, are in the full report.
openstax.org Competitors and Alternatives
OpenStax's company profile names khanacademy.org, coursera.org and edx.org as competitors. Its own llms.txt adds saylor.org and textbookrevolution.org. Outside its market, the domains ranked closest to it in our worldwide ranking are preyproject.com, wendys.com, nicsell.com and forsal.pl.
openstax.org Company Profile
OpenStax creates and shares free textbooks for college-level courses across many subjects. The books are developed with input from educators and go through review processes to ensure they align with typical course requirements. Users can access the materials online, download them in different formats, or order print copies at a low cost. The focus stays on replacing expensive commercial textbooks with versions that i…
OpenStax was founded in 2011, about 15 years ago, and is headquartered in Houston, United States. Its workforce is listed as between 51 and 200 employees. Its profile files it under Education, with further tags for Nonprofit, EdTech and Freemium Model. Products on record for it: Free College Textbooks and Open Educational Resources. Its tagline reads: "OpenStax offers free college textbooks for all types of students, making education accessible & affordable for everyone.".
- Sector
- Education
- Headquarters
- Houston, United States
- Founded
- 2011
- Employees
- 51-200
- Revenue
- Not Disclosed
- Funding
- Not Disclosed
- Products
- Free College Textbooks, Open Educational Resources
openstax.org Traffic by Country
Which markets this brand actually serves, and where the web links to it from.
Top customer markets
AI estimate · live webWe only measure visitor geography for domains whose analytics are connected to us. For everyone else this is read live from the web and shown as an estimate — never mixed in with the measured numbers.
No market breakdown available for this brand.
Where its backlinks come from
Measured. The country each linking site is hosted in — a real signal of which regions know this brand.
No backlink sample for this domain yet.
Backlink Analytics collects one on its first run.
openstax.org Backlink Analytics
Who vouches for this domain. Strong, varied links are still the clearest signal of authority — to search engines and to AI engines that cite sources.
We haven't run a backlink crawl for openstax.org yet, so there are no link counts to show. Backlink Analytics builds the profile on its first run and it appears here after that.
—
links on file
Companies ranked next to openstax.org
Neighbours of #18,169 in our worldwide ranking — each with its own report.
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