---
altdown: 1
canonical: https://altdown.org/agents/
title: This site, as an agent sees it
published: 2026-10-31T00:00:00Z
updated: 2026-10-31T00:00:00Z
lang: en
tokens: 849
tokenizer: cl100k_base
author: Vivek Chopra
signals: search=yes, ai-input=yes, ai-train=yes
generator: altdown.org-gen 0.1
---

# This site, as an agent sees it

altdown.org publishes every page in the format it describes. Each page names its Markdown copy, each copy names its page, and one index lists them all. The examples below are generated from the live files on every build.

## Every page and its copy

| Page | Copy |
| --- | --- |
| [/](https://altdown.org/) | [/index.md](https://altdown.org/index.md) |
| [/1.0/](https://altdown.org/1.0/) | [/1.0/index.md](https://altdown.org/1.0/index.md) |
| [/agents/](https://altdown.org/agents/) | [/agents/index.md](https://altdown.org/agents/index.md) |
| [/changes/](https://altdown.org/changes/) | [/changes/index.md](https://altdown.org/changes/index.md) |
| [/spec/](https://altdown.org/spec/) | [/spec/index.md](https://altdown.org/spec/index.md) |

## The head of the specification page

```html
<link rel="canonical" href="https://altdown.org/spec/">
<link rel="alternate" type="text/markdown" href="/spec/index.md">
<link rel="alternate" type="application/feed+json" href="/altdown.json" title="Altdown index">
```

## The top of its copy

```markdown
---
altdown: 1
canonical: https://altdown.org/spec/
title: Altdown Specification
published: 2026-10-31T00:00:00Z
updated: 2026-10-31T22:20:27Z
lang: en
tokens: 10730
tokenizer: cl100k_base
author: Vivek Chopra
signals: search=yes, ai-input=yes, ai-train=yes
generator: altdown.org-gen 0.1
---

# Altdown Specification

Version 1.0 (Draft) · October 31, 2026
…
```

## robots.txt

```text
User-agent: *
Content-Signal: search=yes, ai-input=yes, ai-train=yes
Allow: /

Sitemap: https://altdown.org/sitemap.xml
Altdown: https://altdown.org/altdown.json
```

## The index

The full index is at [/altdown.json](https://altdown.org/altdown.json). Its entry for the specification:

```json
{
  "id": "https://altdown.org/spec/",
  "url": "https://altdown.org/spec/",
  "title": "Altdown Specification",
  "date_published": "2026-10-31T00:00:00Z",
  "date_modified": "2026-10-31T22:20:27Z",
  "attachments": [
    {
      "url": "https://altdown.org/spec/index.md",
      "mime_type": "text/markdown",
      "size_in_bytes": 44714,
      "_altdown": {
        "tokens": 10730,
        "signals": "search=yes, ai-input=yes, ai-train=yes"
      }
    }
  ]
}
```

## What this site does

- Builds each page and its copy from the same Markdown source, on every deploy.
- Puts nothing in a copy that a person cannot see on its page.
- Hides no text addressed to software. The only pointer to a copy that a person sees is the "View as Markdown" link.
- Serves copies as `text/markdown; charset=utf-8`.
- Runs the spot check from the specification against every page before it publishes.

## Check it yourself

```text
curl -s https://altdown.org/spec/ | grep 'type="text/markdown"'
curl -sI https://altdown.org/spec/index.md | grep -i content-type
curl -s https://altdown.org/robots.txt | grep Altdown
curl -s https://altdown.org/altdown.json | head
```