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:
The file
Ruby publishes an llms.txt at
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.
Comparable files
Closest in size within other, from the same weekly check:
- llmtxt.info (this site): 11.1 KB, 11 sections, 98 links
- nbdev: 4.2 KB, 3 sections, 29 links , no blockquote summary
- Answer.AI: 760 B, 1 sections, 3 links
- llms.txt spec: 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. 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. To see how to find any site's file, see how to find a website's llms.txt, and for the full list see the directory of 119 verified files.