oreilly.com llms.txt
In short
oreilly.com serves a 18 KB llms.txt with 16 H2 sections and 139 links, graded A on the llmstxt.org structure (6 of 6 checks). It passes every check. The home page does not link it, so an agent that does not guess paths will not find it. No llms-full.txt was found. Read 4 November 2026.
llms.txt 18 KB, 177 lines
# O’Reilly Media - Technology and Business Training
> O’Reilly, the premier learning platform for technology professionals, offers the industry’s most extensive catalog of high-quality technical and professional skills development courses. From AI, programming, and cloud technologies to essential business skills such as leadership training and critical thinking, O’Reilly delivers highly trusted content from its network of renowned experts that meets a diverse array of learning needs, with more than 59,000 books, over 5,000 role-based on-demand courses, nearly 200 live events each month, access to interactive sandboxes and labs, and more.
## Enterprise Solutions
- [For Enterprise](https://www.oreilly.com/online-learning/teams.html): Tailored solutions for organizations to enhance team skills and drive business success.
- [For Government](https://www.oreilly.com/online-learning/government.html): Specialized training resources designed for government agencies to improve workforce capabilities.
- [For Higher Ed](https://www.oreilly.com/online-learning/academic.html): Educational resources aimed at institutions of higher learning to support student and faculty development.
- [For Individuals](https://www.oreilly.com/online-learning/individuals.html): Learning opportunities for individuals seeking to enhance their skills and knowledge.
## Content Marketing and Sponsorship
- [Content Marketing Solutions](https://www.oreilly.com/content-marketing-solutions.html): Lead generation and thought leadership programs for technology companies seeking to reach O’Reilly's 2.8 million users worldwide.
- [Sponsored Content](https://www.oreilly.com/content-marketing/available-products.html): Gate an O’Reilly book, report, or early release title for lead gen campaigns.
## Cloud Technologies
- [Microsoft Azure](https://www.oreilly.com/search/skills/microsoft-azure/): Comprehensive resources and training for utilizing Microsoft Azure cloud services.
- [Amazon Web Services (AWS)](https://www.oreilly.com/search/skills/amazon-web-services-aws/): In-depth training materials for […] AWS cloud solutions.
- [Google Cloud](https://www.oreilly.com/search/skills/google-cloud/): Resources focused on Google Cloud services and their applications.
- [Cloud Migration](https://www.oreilly.com/search/skills/cloud-migration/): Guidance on migrating to cloud platforms effectively.
- [Cloud Deployment](https://www.oreilly.com/search/skills/cloud-deployment/): Best practices for deploying applications in cloud environments.
- [Cloud Platforms](https://www.oreilly.com/search/skills/cloud-platforms/): Overview of various cloud platforms and their features.
## Data Management
- [Data Warehouse](https://www.oreilly.com/search/skills/data-warehouse/): Insights into data warehousing concepts and implementations.
- [SQL](https://www.oreilly.com/search/skills/sql/): Training on SQL for database management and querying.
- [Apache Spark](https://www.oreilly.com/search/skills/apache-spark/): Resources for using Apache Spark for big data processing.
- [Microsoft SQL Server](https://www.oreilly.com/search/skills/microsoft-sql-server/): Comprehensive training on Microsoft SQL Server functionalities.
- [MySQL](https://www.oreilly.com/search/skills/mysql/): Learning materials for MySQL database management.
- [Kafka](https://www.oreilly.com/search/skills/kafka/): Resources for implementing Kafka for real-time data streaming.
- [Data Lake](https://www.oreilly.com/search/skills/data-lake/): Understanding data lakes and their role in data management.
- [Streaming & Messaging](https://www.oreilly.com/search/skills/streaming-messaging/): Insights into streaming data and messaging systems.
- [NoSQL Databases](https://www.oreilly.com/search/skills/nosql-databases/): Overview of NoSQL databases and their applications.
- [Relational Databases](https://www.oreilly.com/search/skills/relational-databases/): Training on relational database concepts and management.
## Data Science and Analytics
- [Pandas](https://www.oreilly.com/search/topics/pandas/): Resources for using Pandas for data manipulation and analysis.
- [R](https://www.oreilly.com/search/topics/r/): Training materials for statistical computing and graphics using R.
- [MATLAB](https://www.oreilly.com/search/topics/matlab/): Learning resources for MATLAB programming and applications.
- [SAS](https://www.oreilly.com/search/topics/sas/): Insights into using SAS for advanced analytics.
- [D3](https://www.oreilly.com/search/topics/d3/): Training on D3.js for data visualization.
- [Power BI](https://www.oreilly.com/search/topics/power-bi/): Resources for using Power BI for business intelligence.
- [Tableau](https://www.oreilly.com/search/topics/tableau/): Comprehensive training on Tableau for data visualization.
- [Statistics](https://www.oreilly.com/search/topics/statistics/): Fundamental concepts and applications of statistics.
- [Exploratory Data Analysis](https://www.oreilly.com/search/topics/exploratory-data-analysis/): Techniques for exploring and analyzing data sets.
- [Data Visualization](https://www.oreilly.com/search/topics/data-visualization/): Best practices for visualizing data effectively.
## Artificial Intelligence and Machine Learning
- [Generative AI](https://www.oreilly.com/search/skills/generative-ai/): Insights into generative AI technologies and applications.
First 49 of 177 lines. 1 span shown as […] because the words or characters in them are rejected by this site's own style rules; the live file has them.
Parse graded A, 6 of 6
file: https://oreilly.com/llms.txt
O’Reilly Media - Technology and Business Training
O’Reilly, the premier learning platform for technology professionals, offers the industry’s most extensive catalog of high-quality technical and professional skills development courses. From AI, programming, and cloud technologies to essential business skills such as leadership training and critical thinking, O’Reilly
16 sections, 139 links, no Optional section.
Ora's cached score: 52, grade C, scanned 27 October 2026.
The parse
oreilly.com lists 139 links: 138 point at oreilly.com or a relative path, 1 point elsewhere. The hosts it links most: oreilly.com (138), oreilly.co.jp (1).
| H2 section | Links |
|---|---|
| Enterprise Solutions | 4 |
| Content Marketing and Sponsorship | 2 |
| Cloud Technologies | 6 |
| Data Management | 10 |
| Data Science and Analytics | 10 |
| Artificial Intelligence and Machine Learning | 10 |
| Software Development | 11 |
| Software Architecture and Design | 4 |
| DevOps and IT Operations | 9 |
| Security | 11 |
| Design and User Experience | 7 |
| Business and Management | 10 |
| Professional Development | 9 |
| Additional Resources | 16 |
| Company Information | 16 |
| Legal and Compliance | 4 |
Grade against the llmstxt.org structure
The file passes all six checks. The grade is the count of passed checks: six is A, five is B, four is C, three is D, fewer is F. It measures structure only. Whether any agent reads the file is a separate question, covered on the llms.txt reference.
| Check | Result | Detail |
|---|---|---|
| Starts with an H1 naming the site or project | Pass | H1: O’Reilly Media - Technology and Business Training |
| Has a blockquote summary under the H1 | Pass | Blockquote summary found. |
| Has at least one H2 section that lists links | Pass | 16 H2 sections, 16 with links. |
| At least 80 percent of links point at the same site | Pass | 138 of 139 links stay on oreilly.com (99 percent). |
| Under 100 KB | Pass | 18762 bytes as served. |
| Plain markdown, no HTML | Pass | No HTML document markers in the body. |
Ora's cached score
Ora's cached report for oreilly.com gives it 52 of 100, grade C, scanned on 27 October 2026. Its Access layer, which holds the read-layer checks below, scored 29 of 56 check points. Read from GET ora.ai/api/score/oreilly.com on 5 November 2026. The score is Ora's, not this site's, and the structure grade above is a different measure: it grades the llms.txt file against the llmstxt.org proposal, while Ora's score covers the whole site. Ora's report for oreilly.com has every layer.
| Ora check (Access layer) | Result | Points |
|---|---|---|
| Sitemap exists | Pass | 2 of 2 |
| Content without JavaScript | Partial | 2 of 3 |
| Not blocked by bot detection | Pass | 2 of 2 |
| Markdown URL fallback | Fail | 0 of 2 |
| llms.txt exists | Pass | 1 of 1 |
| llms.txt formatting | Pass | 2 of 2 |
| JSON-LD structured data | Partial | 3 of 4 |
| Metadata completeness | Pass | 2 of 2 |
| llms.txt links resolve | Pass | 2 of 2 |
| Markdown alternate link | Fail | 0 of 1 |
| Redirect hygiene | Pass | 1 of 1 |
| Page token budget | Pass | 1 of 1 |
| Code fence validity | Pass | 1 of 1 |
| Content behind auth | Not applicable | 0 of 2 |
| OpenAPI spec published | Fail | 0 of 7 |
| Markdown agent docs | Fail | 0 of 1 |
| Markdown negotiation with Vary | Fail | 0 of 1 |
| Markdown for agent user agents | Fail | 0 of 1 |
| Agent crawler reachability | Pass | 2 of 2 |
Linking and the companion file
The home page of oreilly.com does not link the file in its HTML. Ora's lab found (2026-10-19) that 86 percent of llms.txt fetches by agents arrived through a link, so an unlinked file is mostly a file nobody opens. No llms-full.txt was found at the same root.
How it compares
At 18 KB the file is larger than 76 percent of the 2,529 plain-text llms.txt files in this edition, and its 139 links put it ahead of 85 percent of them on link count. The home page declares no generator. Size bucket: 10 to 50 KB. Tranco rank 1,943. Category: Top 10,000, no category.
Live file: https://oreilly.com/llms.txt. Read 4 November 2026. If the file has since changed or gone, the live URL is the authority; this page records what the crawl read on that date.
Sources
- oreilly.com llms.txt https://oreilly.com/llms.txt, read 4 November 2026
- llms.txt proposal (llmstxt.org) https://llmstxt.org/, read 4 November 2026
- Tranco list 746WX (crawl universe) https://tranco-list.eu/list/746WX, read 4 November 2026
- Ora: AgentReady launch post (the 86 percent finding) https://ora.ai/blog/agentready-launch, read 4 November 2026
- Ora llms.txt (GET /api/score/{domain} looks up a cached score) https://ora.ai/llms.txt, read 5 November 2026
Last reviewed 5 November 2026