- [ Home ](/) / - [ Examples ](/examples/) / - Ruby # Ruby: what its llms.txt contains Measured on 2026-08-31: 9.7 KB, 10 sections, 56 links. How that compares with the other 118 files we track, and what it implies. Last updated: August 31, 2026 ## The file **Ruby** publishes an llms.txt at [`https://ruby-lang.org/llms.txt`](https://ruby-lang.org/llms.txt). That URL redirects to `https://www.ruby-lang.org/llms.txt`, which is where the file is actually served. Worth knowing if you fetch it programmatically: a client that does not follow redirects gets nothing. The file declares itself as **Ruby Programming Language** in its H1, and the host is categorised here as other. It was last fetched and parsed on 2026-08-31. ## Measured structure Measure Ruby Corpus median Percentile Size 9.7 KB 14.0 KB 37th H2 sections 10 8 71th Links 56 76 44th Blockquote summary Present 99 of 119 have one n/a Percentiles are against the 119 files in this directory, not against the web. That population is deliberately weighted toward documentation platforms and developer tools, which is where the convention started, so treat it as a peer group rather than a norm. ## Observations Nothing in this file stands out against the corpus. It carries a blockquote summary, its section count and link count sit in the normal range, and its size is unremarkable. For a format whose whole job is to be a short, legible index, that is the intended outcome rather than a lack of findings. Note What this page does not tell you These are structural measurements of a text file. They say nothing about whether the pages it links to are good, whether anything actually reads it, or whether publishing it helped this site. On that last question the measured answer is sobering, and we cover it in no AI agent goes looking for your llms.txt . ## Comparable files Closest in size within other, from the same weekly check: - [llmtxt.info (this site)](/llms-txt-directory/llmtxt-info/): 11.1 KB, 11 sections, 98 links - [nbdev](/llms-txt-directory/nbdev-fast-ai/): 4.2 KB, 3 sections, 29 links , no blockquote summary - [Answer.AI](/llms-txt-directory/answer-ai/): 760 B, 1 sections, 3 links - [llms.txt spec](/llms-txt-directory/llmstxt-org/): 637 B, 1 sections, 3 links ## How this was measured Our checker fetches `/llms.txt` for every host in the directory, follows redirects, confirms the response is Markdown rather than an HTML error page, and parses it with the same parser that powers our [validator](/validator/). Sizes are of the served body, sections are H2 headings, and links are Markdown links anywhere in the file. The run behind this page completed on 2026-08-31. Want to check a file yourself, including this one? Paste the URL into the [validator](/validator/). To see how to find any site's file, see [how to find a website's llms.txt](/how-to-find-llms-txt/), and for the full list see the [directory of 119 verified files](/examples/). ## Sources - [ Ruby llms.txt (live file) ](https://www.ruby-lang.org/llms.txt) - [ llmstxt.org, the specification ](https://llmstxt.org/) On this page - [ The file ](#file) - [ Measured structure ](#structure) - [ Observations ](#observations) - [ Comparable files ](#compare) - [ How this was measured ](#method)