已验证的 AgentReady.md 证书
签发于 sig: fa9746d381bd9ef7 验证 →

已分析URL

https://atarcms.com

测量于2周前

分析另一个URL

AI-Ready评分

优秀

/ 100

Token节省量

HTML Token 12.065
Markdown Token 1378
节省 89%

评分详情

可访问性 94/100
AI可发现性 82/100
结构化数据 100/100
语义化HTML 100/100
内容效率 85/100

新兴协议

已检测到 0/6

AI代理查找的well-known端点。检测到意味着代理可以自动发现并连接到您的服务。

  • OAuth Protected Resource RFC 9728
    /.well-known/oauth-protected-resource
  • OAuth Discovery RFC 8414
    /.well-known/oauth-authorization-server
  • MCP Server Card SEP-1649 draft
    /.well-known/mcp/server-card.json
  • A2A Agent Card A2A v1.0
    /.well-known/agent-card.json
  • API Catalog RFC 9727
    /.well-known/api-catalog
  • Agent Skills index Discovery RFC v0.2.0 draft
    /.well-known/agent-skills/index.json

分数不会自己保持不变。 监控功能尚未上线——加入名单,上线时通知你。

您已加入名单!服务上线时我们会通知您。

我们测到的 No Content-Signal found (robots.txt or HTTP headers)

未找到Content-Signal指令。这些指令告知AI代理如何使用您的内容(搜索索引、AI输入、训练数据)。推荐位置是robots.txt。

如何实施

将Content-Signal添加到您的robots.txt:User-agent: *\nContent-Signal: search=yes, ai-input=yes, ai-train=no。也可以作为markdown响应的HTTP标头添加。

粘贴到编码智能体中让它完成修复
Markdown Token: 1378
![](https://atarcms.com/theme-assets/img/atar-violet.svg?v=9278c657afcb)Open source · MIT licence

AtarCMS runs small multilingual sites — a studio, a clinic, a club, a workshop — on one small server. Hand it to your coding agent: it installs the site and builds it from your brief. Then your editors, or their agents, take it from there.

[Copy the agent prompt](https://atarcms.com/#quick-start) [Open GitHub](https://github.com/yanfishel/atarcms)

Your coding agent

```
Clone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder
(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md
there and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;
then open the site's folder and continue with its skill.
```

-   ### AI-ready, end to end

    A coding agent builds the site with the skill that ships in the project. A browser agent runs the admin from one guide at /admin/ai-guide. Language models read the public site through /llms.txt and a markdown twin of every page.

-   ### Multilingual, right to left included

    Content, menus, search and feeds per language, with linked translations. Hebrew and other right-to-left languages mirror the whole site and the whole admin, not just the text. The admin itself speaks five languages.

-   ### Small and honest

    PHP 8.4 and MariaDB on one small VPS. No build step, no node\_modules, no compiled cache: it boots from the sources on plain OPcache. One to five trusted editors, MIT licence, your data on your server.

Measured

## A clean sheet in Lighthouse

-   100 Performance
-   100 Accessibility
-   100 Best Practices
-   100 SEO
-   3/3 Agentic Browsing

The default theme of the site skeleton, measured with Lighthouse — including Google's new agentic browsing audit, which checks that AI agents can use a site.

-   ![The dashboard: recent activity, content and translation state at a glance](https://atarcms.com/media/shot/2026/10/3e19aa050d5d582eb3a7ea1723e0d314.png?v=0e15271b)
    *The dashboard: recent activity, content and translation state at a glance*

-   ![The entry form: tabs per field group, the status and publication date beside the fields](https://atarcms.com/media/shot/2026/10/06cde93c198ffe8391c4bf2d0e8f57f8.png?v=0e15271b)
    *The entry form: tabs per field group, the status and publication date beside the fields*

-   ![Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map](https://atarcms.com/media/shot/2026/10/61982d79f7cba4f692149ecbbe4191c9.png?v=0e15271b)
    *Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map*

-   ![Sections: the site's menu as a tree, drag to nest, every change audited](https://atarcms.com/media/shot/2026/10/05a5602e8f75fde1a8bc5e83d00c4f42.png?v=0e15271b)
    *Sections: the site's menu as a tree, drag to nest, every change audited*

-   ![Full right to left: the same admin in Hebrew, mirrored by logical CSS](https://atarcms.com/media/shot/2026/10/e7cdbe2413f2a827ce40c4258d2584a4.png?v=0e15271b)
    *Full right to left: the same admin in Hebrew, mirrored by logical CSS*

-   ![Site settings, Integrations: verification codes and statistics, each one field](https://atarcms.com/media/shot/2026/10/676080024f340f5ffd65f115c904f111.png?v=0e15271b)
    *Site settings, Integrations: verification codes and statistics, each one field*

Get going

## Quick start

Start a site with Composer, then fill .env, run the migrations and create the first administrator — install.md in the skeleton covers every path: your computer or a server, with Docker or without, shared hosting. Or open your coding agent in an empty folder and paste the prompt. It asks before it installs packages or changes a server, and you type the secrets yourself.

```
composer create-project yanfishel/atarcms my-site --no-interaction
```

```
Clone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder
(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md
there and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;
then open the site's folder and continue with its skill.
```

-   ### [Hello from atarcms.com, built by an agent](https://atarcms.com/news/hello-from-atarcms-com)

    Oct 16, 2026

    The project's own site runs on AtarCMS, and a coding agent built it from the owner's brief with the skill that ships in the skeleton.

-   ### [AtarCMS v0.2.0: demo content that follows your brief](https://atarcms.com/news/atarcms-0-2-0)

    Oct 16, 2026

    Demo content now builds the sections, pages and tags of your brief, a new admin speaks the site's language, and the launch checklist walks you through Google sign-in.

-   ### [AtarCMS v0.1.0: the first public version](https://atarcms.com/news/atarcms-0-1-0)

    Oct 15, 2026

    The core and the site skeleton are public under the MIT licence and on Packagist: composer create-project yanfishel/atarcms starts a site.
AtarCMS — a small CMS that AI agents can build, run and read                     [Skip to content](https://atarcms.com/#main)

## Accessibility

Text

Text size

100%

-   Wider spacing
-   Readable font

Colours

-   High contrast
-   Greyscale
-   Invert colours

Navigation

-   Highlight links and headings
-   Strong focus
-   Big cursor
-   Stop animations

Reading

-   Reading guide
-   Hide images

[![](https://atarcms.com/theme-assets/img/atar-violet.svg?v=9278c657afcb)AtarCMS](https://atarcms.com/)

[](https://github.com/yanfishel/atarcms "GitHub")

****

-   Light
-   Dark
-   As on the device

**Menu**

![](https://atarcms.com/theme-assets/img/atar-violet.svg?v=9278c657afcb)Open source · MIT licence

# A small CMS that AI agents can build, run and read

AtarCMS runs small multilingual sites — a studio, a clinic, a club, a workshop — on one small server. Hand it to your coding agent: it installs the site and builds it from your brief. Then your editors, or their agents, take it from there.

[Copy the agent prompt](https://atarcms.com/#quick-start) [Open GitHub](https://github.com/yanfishel/atarcms)

Your coding agent

Copy

```
Clone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder
(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md
there and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;
then open the site's folder and continue with its skill.
```

## What AtarCMS is

-   ### AI-ready, end to end

    A coding agent builds the site with the skill that ships in the project. A browser agent runs the admin from one guide at /admin/ai-guide. Language models read the public site through /llms.txt and a markdown twin of every page.

-   ### Multilingual, right to left included

    Content, menus, search and feeds per language, with linked translations. Hebrew and other right-to-left languages mirror the whole site and the whole admin, not just the text. The admin itself speaks five languages.

-   ### Small and honest

    PHP 8.4 and MariaDB on one small VPS. No build step, no node\_modules, no compiled cache: it boots from the sources on plain OPcache. One to five trusted editors, MIT licence, your data on your server.

Measured

## A clean sheet in Lighthouse

-   100 Performance
-   100 Accessibility
-   100 Best Practices
-   100 SEO
-   3/3 Agentic Browsing

The default theme of the site skeleton, measured with Lighthouse — including Google's new agentic browsing audit, which checks that AI agents can use a site.

Screenshots

## A look inside the admin

Real screenshots, no mock-ups. Select one to see it full size.

-   ![The dashboard: recent activity, content and translation state at a glance](https://atarcms.com/media/shot/2026/10/3e19aa050d5d582eb3a7ea1723e0d314.png?v=0e15271b)
    *The dashboard: recent activity, content and translation state at a glance*

-   ![The entry form: tabs per field group, the status and publication date beside the fields](https://atarcms.com/media/shot/2026/10/06cde93c198ffe8391c4bf2d0e8f57f8.png?v=0e15271b)
    *The entry form: tabs per field group, the status and publication date beside the fields*

-   ![Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map](https://atarcms.com/media/shot/2026/10/61982d79f7cba4f692149ecbbe4191c9.png?v=0e15271b)
    *Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map*

-   ![Sections: the site's menu as a tree, drag to nest, every change audited](https://atarcms.com/media/shot/2026/10/05a5602e8f75fde1a8bc5e83d00c4f42.png?v=0e15271b)
    *Sections: the site's menu as a tree, drag to nest, every change audited*

-   ![Full right to left: the same admin in Hebrew, mirrored by logical CSS](https://atarcms.com/media/shot/2026/10/e7cdbe2413f2a827ce40c4258d2584a4.png?v=0e15271b)
    *Full right to left: the same admin in Hebrew, mirrored by logical CSS*

-   ![Site settings, Integrations: verification codes and statistics, each one field](https://atarcms.com/media/shot/2026/10/676080024f340f5ffd65f115c904f111.png?v=0e15271b)
    *Site settings, Integrations: verification codes and statistics, each one field*

Get going

## Quick start

Start a site with Composer, then fill .env, run the migrations and create the first administrator — install.md in the skeleton covers every path: your computer or a server, with Docker or without, shared hosting. Or open your coding agent in an empty folder and paste the prompt. It asks before it installs packages or changes a server, and you type the secrets yourself.

### Install with ComposerCopy

```
composer create-project yanfishel/atarcms my-site --no-interaction
```

### Or hand it to your coding agentCopy

```
Clone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder
(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md
there and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;
then open the site's folder and continue with its skill.
```

Updates

## Latest news

[All news](https://atarcms.com/news)

-   ### [Hello from atarcms.com, built by an agent](https://atarcms.com/news/hello-from-atarcms-com)

    Oct 16, 2026

    The project's own site runs on AtarCMS, and a coding agent built it from the owner's brief with the skill that ships in the skeleton.

    -   [#Project](https://atarcms.com/tag/project)

-   ### [AtarCMS v0.2.0: demo content that follows your brief](https://atarcms.com/news/atarcms-0-2-0)

    Oct 16, 2026

    Demo content now builds the sections, pages and tags of your brief, a new admin speaks the site's language, and the launch checklist walks you through Google sign-in.

    -   [#Releases](https://atarcms.com/tag/releases)

-   ### [AtarCMS v0.1.0: the first public version](https://atarcms.com/news/atarcms-0-1-0)

    Oct 15, 2026

    The core and the site skeleton are public under the MIT licence and on Packagist: composer create-project yanfishel/atarcms starts a site.

    -   [#Releases](https://atarcms.com/tag/releases)

将此文件上传到服务器的/index.md,以便AI代理可以访问页面的干净版本。您也可以配置Accept: text/markdown内容协商以自动提供。

我们的建议

下载llms.txt
# AtarCMS

> AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin and read the published site. MIT licence, one small VPS, no build step.

## Documentation
- [FAQ](https://atarcms.com/faq)
- [llms.txt](https://atarcms.com/llms.txt)
- [llms-full.txt](https://atarcms.com/llms-full.txt)

## Main
- [AtarCMS — a small CMS that AI agents can build, run and read](https://atarcms.com): AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin a…
- [Accessibility statement](https://atarcms.com/accessibility)
- [AtarCMS](https://atarcms.com/)
- [How it works](https://atarcms.com/how-it-works)
- [AI-ready](https://atarcms.com/ai-ready)
- [Contacts](https://atarcms.com/contacts)
- [llms.txt](https://atarcms.com/llms.txt)
- [llms-full.txt](https://atarcms.com/llms-full.txt)
- [Sitemap](https://atarcms.com/sitemap.xml)

## Blog
- [News](https://atarcms.com/news)
- [News feed (RSS)](https://atarcms.com/news/feed.xml)

## Legal
- [Privacy policy](https://atarcms.com/privacy)

## Support
- [FAQ](https://atarcms.com/faq)

完整llms.txt需要全域分析(即将推出)

将此文件上传到域名根目录的https://atarcms.com/llms.txt。ChatGPT、Claude和Perplexity等AI代理会检查此文件以了解您的网站结构。

该网站已有llms.txt文件。

格式有效
# AtarCMS

> AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin and read the published site. MIT licence, one small VPS, no build step.

Site languages: en (default)

Append .md to an entry's URL for a markdown version.

The full text of the entry pages: https://atarcms.com/llms-full.txt

## Home page

- [Home page](https://atarcms.com/)

## Contacts

- [Contacts](https://atarcms.com/contacts)

## News

- [AtarCMS v0.2.0: demo content that follows your brief](https://atarcms.com/news/atarcms-0-2-0)
- [AtarCMS v0.1.0: the first public version](https://atarcms.com/news/atarcms-0-1-0)
- [Hello from atarcms.com, built by an agent](https://atarcms.com/news/hello-from-atarcms-com)

## FAQ

- [CKEditor is GPL: does that affect my site?](https://atarcms.com/faq/ckeditor-and-gpl)
- [Where is my data?](https://atarcms.com/faq/where-is-my-data)
- [What hosting do I need?](https://atarcms.com/faq/what-hosting-do-i-need)
- [What does it cost?](https://atarcms.com/faq/what-does-it-cost)
- [What exactly can an AI agent do in the admin?](https://atarcms.com/faq/what-can-an-ai-agent-do-in-the-admin)
- [How is this different from WordPress?](https://atarcms.com/faq/how-is-this-different-from-wordpress)
- [Do I need a programmer?](https://atarcms.com/faq/do-i-need-a-programmer)

## Pages

- [Privacy policy](https://atarcms.com/privacy)
- [Accessibility statement](https://atarcms.com/accessibility)
- [How it works](https://atarcms.com/how-it-works)
- [AI-ready](https://atarcms.com/ai-ready)

## Tags

- [Project](https://atarcms.com/tag/project)
- [Releases](https://atarcms.com/tag/releases)

可访问性

无需JavaScript即可获取内容 (100/100)

Content available without JavaScript

内容在HTML中位置靠前 (75/100)

Main content starts at 33% of HTML

合理的页面大小 (100/100)

Page size: 39KB

AI可发现性

robots.txt允许AI机器人 (100/100)

All major AI search bots allowed

Markdown for Agents支持 (60/100) Application
✗ Accept: text/markdown ✓ .md URL ✓ <link> tag ✗ Link header

可被发现,但无法协商:读取你 HTML 的智能体能找到 .md 版本,而直接请求页面的智能体仍会拿到 HTML。响应 Accept: text/markdown 可以同时覆盖这两种情况。

有sitemap.xml (100/100)

Sitemap found

有robots.txt文件 (100/100)

robots.txt exists

有llms.txt文件 (100/100)

llms.txt exists and is valid

有Content-Signal(robots.txt或HTTP标头) (0/100)
✓ robots.txt ✓ HTTP header ✗ Policy

结构化数据

有Schema.org / JSON-LD (100/100)

JSON-LD found: WebSite, Organization

有Open Graph标签 (100/100)

All OG tags present

有meta描述 (100/100)

Meta description: 189 chars

有规范URL (100/100)

Canonical URL present

有lang属性 (100/100)

lang="en"

语义化HTML

正确的标题层级 (100/100)

Clean heading hierarchy

使用article或main元素 (100/100)

Has both <article> and <main>

使用语义化HTML元素 (100/100)

37 semantic elements, 30 divs (ratio: 55%)

有意义的图片alt属性 (100/100)

6/6 images with meaningful alt text (4 decorative, not counted)

较低的div嵌套深度 (100/100)

Avg div depth: 1.0, max: 3

内容效率

良好的Token减少比率 (100/100)

89% token reduction (HTML→Markdown)

良好的内容与噪声比 (50/100)

Content ratio: 15.8% (6294 content chars / 39725 HTML bytes)

合理的页面重量 (100/100)

HTML size: 39KB

最少的内联样式 (100/100)

0/440 elements with inline styles (0.0%)

{
  "url": "https://atarcms.com",
  "timestamp": 1792712849941,
  "fetch": {
    "mode": "simple",
    "timeMs": 295,
    "htmlSizeBytes": 39725,
    "supportsMarkdown": false,
    "markdownAgents": {
      "contentNegotiation": false,
      "mdUrl": {
        "found": true,
        "url": "https://atarcms.com/index.md"
      },
      "linkTag": {
        "found": true,
        "url": "/index.md"
      },
      "linkHeader": {
        "found": false,
        "url": null
      },
      "responseHeaders": {
        "contentSignal": null,
        "xMarkdownTokens": null,
        "vary": null
      },
      "frontmatter": {
        "present": false,
        "fields": [],
        "level": "none"
      },
      "level": "application",
      "mdUrlMediaType": "text/markdown",
      "mdUrlProperMediaType": true
    },
    "statusCode": 200
  },
  "extraction": {
    "title": "AtarCMS — a small CMS that AI agents can build, run and read",
    "excerpt": "AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin and read the published site. MIT licence, one small VPS, no build step.",
    "byline": null,
    "siteName": "AtarCMS",
    "lang": "en",
    "contentLength": 6294,
    "metadata": {
      "description": "AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin and read the published site. MIT licence, one small VPS, no build step.",
      "ogTitle": "AtarCMS — a small CMS that AI agents can build, run and read",
      "ogDescription": "AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin and read the published site. MIT licence, one small VPS, no build step.",
      "ogImage": "https://atarcms.com/media/large/2026/10/3e19aa050d5d582eb3a7ea1723e0d314.png?v=597e9ef5",
      "ogType": "website",
      "canonical": "https://atarcms.com/",
      "lang": "en",
      "schemas": [
        {
          "@type": "WebSite",
          "name": "AtarCMS",
          "url": "https://atarcms.com/",
          "inLanguage": "en",
          "publisher": {
            "@id": "https://atarcms.com/#organization"
          }
        },
        {
          "@type": "Organization",
          "@id": "https://atarcms.com/#organization",
          "name": "AtarCMS",
          "url": "https://atarcms.com/",
          "email": "[email protected]"
        }
      ],
      "robotsMeta": null,
      "author": null,
      "generator": null,
      "markdownAlternateHref": "/index.md"
    }
  },
  "markdown": "![](https://atarcms.com/theme-assets/img/atar-violet.svg?v=9278c657afcb)Open source · MIT licence\n\nAtarCMS runs small multilingual sites — a studio, a clinic, a club, a workshop — on one small server. Hand it to your coding agent: it installs the site and builds it from your brief. Then your editors, or their agents, take it from there.\n\n[Copy the agent prompt](https://atarcms.com/#quick-start) [Open GitHub](https://github.com/yanfishel/atarcms)\n\nYour coding agent\n\n```\nClone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder\n(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md\nthere and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;\nthen open the site's folder and continue with its skill.\n```\n\n-   ### AI-ready, end to end\n\n    A coding agent builds the site with the skill that ships in the project. A browser agent runs the admin from one guide at /admin/ai-guide. Language models read the public site through /llms.txt and a markdown twin of every page.\n\n-   ### Multilingual, right to left included\n\n    Content, menus, search and feeds per language, with linked translations. Hebrew and other right-to-left languages mirror the whole site and the whole admin, not just the text. The admin itself speaks five languages.\n\n-   ### Small and honest\n\n    PHP 8.4 and MariaDB on one small VPS. No build step, no node\\_modules, no compiled cache: it boots from the sources on plain OPcache. One to five trusted editors, MIT licence, your data on your server.\n\nMeasured\n\n## A clean sheet in Lighthouse\n\n-   100 Performance\n-   100 Accessibility\n-   100 Best Practices\n-   100 SEO\n-   3/3 Agentic Browsing\n\nThe default theme of the site skeleton, measured with Lighthouse — including Google's new agentic browsing audit, which checks that AI agents can use a site.\n\n-   ![The dashboard: recent activity, content and translation state at a glance](https://atarcms.com/media/shot/2026/10/3e19aa050d5d582eb3a7ea1723e0d314.png?v=0e15271b)\n    *The dashboard: recent activity, content and translation state at a glance*\n\n-   ![The entry form: tabs per field group, the status and publication date beside the fields](https://atarcms.com/media/shot/2026/10/06cde93c198ffe8391c4bf2d0e8f57f8.png?v=0e15271b)\n    *The entry form: tabs per field group, the status and publication date beside the fields*\n\n-   ![Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map](https://atarcms.com/media/shot/2026/10/61982d79f7cba4f692149ecbbe4191c9.png?v=0e15271b)\n    *Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map*\n\n-   ![Sections: the site's menu as a tree, drag to nest, every change audited](https://atarcms.com/media/shot/2026/10/05a5602e8f75fde1a8bc5e83d00c4f42.png?v=0e15271b)\n    *Sections: the site's menu as a tree, drag to nest, every change audited*\n\n-   ![Full right to left: the same admin in Hebrew, mirrored by logical CSS](https://atarcms.com/media/shot/2026/10/e7cdbe2413f2a827ce40c4258d2584a4.png?v=0e15271b)\n    *Full right to left: the same admin in Hebrew, mirrored by logical CSS*\n\n-   ![Site settings, Integrations: verification codes and statistics, each one field](https://atarcms.com/media/shot/2026/10/676080024f340f5ffd65f115c904f111.png?v=0e15271b)\n    *Site settings, Integrations: verification codes and statistics, each one field*\n\nGet going\n\n## Quick start\n\nStart a site with Composer, then fill .env, run the migrations and create the first administrator — install.md in the skeleton covers every path: your computer or a server, with Docker or without, shared hosting. Or open your coding agent in an empty folder and paste the prompt. It asks before it installs packages or changes a server, and you type the secrets yourself.\n\n```\ncomposer create-project yanfishel/atarcms my-site --no-interaction\n```\n\n```\nClone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder\n(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md\nthere and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;\nthen open the site's folder and continue with its skill.\n```\n\n-   ### [Hello from atarcms.com, built by an agent](https://atarcms.com/news/hello-from-atarcms-com)\n\n    Oct 16, 2026\n\n    The project's own site runs on AtarCMS, and a coding agent built it from the owner's brief with the skill that ships in the skeleton.\n\n-   ### [AtarCMS v0.2.0: demo content that follows your brief](https://atarcms.com/news/atarcms-0-2-0)\n\n    Oct 16, 2026\n\n    Demo content now builds the sections, pages and tags of your brief, a new admin speaks the site's language, and the launch checklist walks you through Google sign-in.\n\n-   ### [AtarCMS v0.1.0: the first public version](https://atarcms.com/news/atarcms-0-1-0)\n\n    Oct 15, 2026\n\n    The core and the site skeleton are public under the MIT licence and on Packagist: composer create-project yanfishel/atarcms starts a site.\n",
  "fullPageMarkdown": "AtarCMS — a small CMS that AI agents can build, run and read                     [Skip to content](https://atarcms.com/#main)\n\n## Accessibility\n\nText\n\nText size\n\n100%\n\n-   Wider spacing\n-   Readable font\n\nColours\n\n-   High contrast\n-   Greyscale\n-   Invert colours\n\nNavigation\n\n-   Highlight links and headings\n-   Strong focus\n-   Big cursor\n-   Stop animations\n\nReading\n\n-   Reading guide\n-   Hide images\n\n[![](https://atarcms.com/theme-assets/img/atar-violet.svg?v=9278c657afcb)AtarCMS](https://atarcms.com/)\n\n[](https://github.com/yanfishel/atarcms \"GitHub\")\n\n****\n\n-   Light\n-   Dark\n-   As on the device\n\n**Menu**\n\n![](https://atarcms.com/theme-assets/img/atar-violet.svg?v=9278c657afcb)Open source · MIT licence\n\n# A small CMS that AI agents can build, run and read\n\nAtarCMS runs small multilingual sites — a studio, a clinic, a club, a workshop — on one small server. Hand it to your coding agent: it installs the site and builds it from your brief. Then your editors, or their agents, take it from there.\n\n[Copy the agent prompt](https://atarcms.com/#quick-start) [Open GitHub](https://github.com/yanfishel/atarcms)\n\nYour coding agent\n\nCopy\n\n```\nClone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder\n(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md\nthere and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;\nthen open the site's folder and continue with its skill.\n```\n\n## What AtarCMS is\n\n-   ### AI-ready, end to end\n\n    A coding agent builds the site with the skill that ships in the project. A browser agent runs the admin from one guide at /admin/ai-guide. Language models read the public site through /llms.txt and a markdown twin of every page.\n\n-   ### Multilingual, right to left included\n\n    Content, menus, search and feeds per language, with linked translations. Hebrew and other right-to-left languages mirror the whole site and the whole admin, not just the text. The admin itself speaks five languages.\n\n-   ### Small and honest\n\n    PHP 8.4 and MariaDB on one small VPS. No build step, no node\\_modules, no compiled cache: it boots from the sources on plain OPcache. One to five trusted editors, MIT licence, your data on your server.\n\nMeasured\n\n## A clean sheet in Lighthouse\n\n-   100 Performance\n-   100 Accessibility\n-   100 Best Practices\n-   100 SEO\n-   3/3 Agentic Browsing\n\nThe default theme of the site skeleton, measured with Lighthouse — including Google's new agentic browsing audit, which checks that AI agents can use a site.\n\nScreenshots\n\n## A look inside the admin\n\nReal screenshots, no mock-ups. Select one to see it full size.\n\n-   ![The dashboard: recent activity, content and translation state at a glance](https://atarcms.com/media/shot/2026/10/3e19aa050d5d582eb3a7ea1723e0d314.png?v=0e15271b)\n    *The dashboard: recent activity, content and translation state at a glance*\n\n-   ![The entry form: tabs per field group, the status and publication date beside the fields](https://atarcms.com/media/shot/2026/10/06cde93c198ffe8391c4bf2d0e8f57f8.png?v=0e15271b)\n    *The entry form: tabs per field group, the status and publication date beside the fields*\n\n-   ![Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map](https://atarcms.com/media/shot/2026/10/61982d79f7cba4f692149ecbbe4191c9.png?v=0e15271b)\n    *Rich text (CKEditor 5) beside structured fields: address, opening hours, a Google map*\n\n-   ![Sections: the site's menu as a tree, drag to nest, every change audited](https://atarcms.com/media/shot/2026/10/05a5602e8f75fde1a8bc5e83d00c4f42.png?v=0e15271b)\n    *Sections: the site's menu as a tree, drag to nest, every change audited*\n\n-   ![Full right to left: the same admin in Hebrew, mirrored by logical CSS](https://atarcms.com/media/shot/2026/10/e7cdbe2413f2a827ce40c4258d2584a4.png?v=0e15271b)\n    *Full right to left: the same admin in Hebrew, mirrored by logical CSS*\n\n-   ![Site settings, Integrations: verification codes and statistics, each one field](https://atarcms.com/media/shot/2026/10/676080024f340f5ffd65f115c904f111.png?v=0e15271b)\n    *Site settings, Integrations: verification codes and statistics, each one field*\n\nGet going\n\n## Quick start\n\nStart a site with Composer, then fill .env, run the migrations and create the first administrator — install.md in the skeleton covers every path: your computer or a server, with Docker or without, shared hosting. Or open your coding agent in an empty folder and paste the prompt. It asks before it installs packages or changes a server, and you type the secrets yourself.\n\n### Install with ComposerCopy\n\n```\ncomposer create-project yanfishel/atarcms my-site --no-interaction\n```\n\n### Or hand it to your coding agentCopy\n\n```\nClone https://github.com/yanfishel/atarcms.git with --depth 1 into a temporary folder\n(install git first if it is missing), read .agents/skills/building-atarcms-sites/references/install.md\nthere and install AtarCMS: into ./my-site on this computer, or into /var/www/<site> on a server;\nthen open the site's folder and continue with its skill.\n```\n\nUpdates\n\n## Latest news\n\n[All news](https://atarcms.com/news)\n\n-   ### [Hello from atarcms.com, built by an agent](https://atarcms.com/news/hello-from-atarcms-com)\n\n    Oct 16, 2026\n\n    The project's own site runs on AtarCMS, and a coding agent built it from the owner's brief with the skill that ships in the skeleton.\n\n    -   [#Project](https://atarcms.com/tag/project)\n\n-   ### [AtarCMS v0.2.0: demo content that follows your brief](https://atarcms.com/news/atarcms-0-2-0)\n\n    Oct 16, 2026\n\n    Demo content now builds the sections, pages and tags of your brief, a new admin speaks the site's language, and the launch checklist walks you through Google sign-in.\n\n    -   [#Releases](https://atarcms.com/tag/releases)\n\n-   ### [AtarCMS v0.1.0: the first public version](https://atarcms.com/news/atarcms-0-1-0)\n\n    Oct 15, 2026\n\n    The core and the site skeleton are public under the MIT licence and on Packagist: composer create-project yanfishel/atarcms starts a site.\n\n    -   [#Releases](https://atarcms.com/tag/releases)\n",
  "markdownStats": {
    "images": 13,
    "links": 11,
    "tables": 0,
    "codeBlocks": 3,
    "headings": 8
  },
  "tokens": {
    "htmlTokens": 12065,
    "markdownTokens": 1378,
    "reduction": 10687,
    "reductionPercent": 89
  },
  "score": {
    "score": 92,
    "grade": "A",
    "rubricVersion": 3,
    "dimensions": {
      "accessibility": {
        "score": 94,
        "weight": 30,
        "grade": "A",
        "checks": {
          "content_without_js": {
            "score": 100,
            "weight": 55,
            "evidence": "proven",
            "details": "Content available without JavaScript"
          },
          "fast_content_position": {
            "score": 75,
            "weight": 25,
            "evidence": "plausible",
            "details": "Main content starts at 33% of HTML"
          },
          "reasonable_page_size": {
            "score": 100,
            "weight": 20,
            "evidence": "plausible",
            "details": "Page size: 39KB"
          }
        }
      },
      "aiDiscoverability": {
        "score": 82,
        "weight": 25,
        "grade": "B",
        "checks": {
          "robots_allows_ai_bots": {
            "score": 100,
            "weight": 35,
            "evidence": "proven",
            "details": "All major AI search bots allowed"
          },
          "supports_markdown_negotiation": {
            "score": 60,
            "weight": 20,
            "evidence": "plausible",
            "details": "Application level — .md URL (https://atarcms.com/index.md), <link> tag",
            "mechanisms": {
              "negotiation": false,
              "mdUrl": true,
              "linkTag": true,
              "linkHeader": false
            }
          },
          "has_sitemap": {
            "score": 100,
            "weight": 15,
            "evidence": "plausible",
            "details": "Sitemap found"
          },
          "has_robots_txt": {
            "score": 100,
            "weight": 10,
            "evidence": "plausible",
            "details": "robots.txt exists"
          },
          "has_llms_txt": {
            "score": 100,
            "weight": 10,
            "evidence": "speculative",
            "details": "llms.txt exists and is valid"
          },
          "has_content_signals": {
            "score": 0,
            "weight": 10,
            "evidence": "speculative",
            "details": "No Content-Signal found (robots.txt or HTTP headers)",
            "mechanisms": {
              "robotsTxt": false,
              "httpHeader": false,
              "policy": false
            }
          }
        }
      },
      "structuredData": {
        "score": 100,
        "weight": 20,
        "grade": "A",
        "checks": {
          "has_schema_org": {
            "score": 100,
            "weight": 35,
            "evidence": "proven",
            "details": "JSON-LD found: WebSite, Organization"
          },
          "has_open_graph": {
            "score": 100,
            "weight": 20,
            "evidence": "plausible",
            "details": "All OG tags present"
          },
          "has_meta_description": {
            "score": 100,
            "weight": 20,
            "evidence": "plausible",
            "details": "Meta description: 189 chars"
          },
          "has_canonical_url": {
            "score": 100,
            "weight": 15,
            "evidence": "plausible",
            "details": "Canonical URL present"
          },
          "has_lang_attribute": {
            "score": 100,
            "weight": 10,
            "evidence": "plausible",
            "details": "lang=\"en\""
          }
        }
      },
      "semanticHtml": {
        "score": 100,
        "weight": 15,
        "grade": "A",
        "checks": {
          "proper_heading_hierarchy": {
            "score": 100,
            "weight": 30,
            "evidence": "plausible",
            "details": "Clean heading hierarchy"
          },
          "uses_article_or_main": {
            "score": 100,
            "weight": 25,
            "evidence": "plausible",
            "details": "Has both <article> and <main>"
          },
          "semantic_elements": {
            "score": 100,
            "weight": 20,
            "evidence": "plausible",
            "details": "37 semantic elements, 30 divs (ratio: 55%)"
          },
          "meaningful_alt_texts": {
            "score": 100,
            "weight": 15,
            "evidence": "plausible",
            "details": "6/6 images with meaningful alt text (4 decorative, not counted)"
          },
          "low_div_nesting": {
            "score": 100,
            "weight": 10,
            "evidence": "speculative",
            "details": "Avg div depth: 1.0, max: 3"
          }
        }
      },
      "contentEfficiency": {
        "score": 85,
        "weight": 10,
        "grade": "B",
        "checks": {
          "token_reduction_ratio": {
            "score": 100,
            "weight": 40,
            "evidence": "speculative",
            "details": "89% token reduction (HTML→Markdown)"
          },
          "content_to_noise_ratio": {
            "score": 50,
            "weight": 30,
            "evidence": "speculative",
            "details": "Content ratio: 15.8% (6294 content chars / 39725 HTML bytes)"
          },
          "reasonable_page_weight": {
            "score": 100,
            "weight": 20,
            "evidence": "speculative",
            "details": "HTML size: 39KB"
          },
          "minimal_inline_styles": {
            "score": 100,
            "weight": 10,
            "evidence": "speculative",
            "details": "0/440 elements with inline styles (0.0%)"
          }
        }
      }
    }
  },
  "recommendations": [
    {
      "id": "add_content_signals",
      "priority": "high",
      "category": "aiDiscoverability",
      "titleKey": "rec.add_content_signals.title",
      "descriptionKey": "rec.add_content_signals.description",
      "howToKey": "rec.add_content_signals.howto",
      "howToStepKeys": null,
      "effort": "quick-win",
      "estimatedImpact": 2.5,
      "maxImpact": 2.5,
      "evidence": "speculative",
      "checkScore": 0,
      "checkDetails": "No Content-Signal found (robots.txt or HTTP headers)"
    }
  ],
  "llmsTxtPreview": "# AtarCMS\n\n> AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin and read the published site. MIT licence, one small VPS, no build step.\n\n## Documentation\n- [FAQ](https://atarcms.com/faq)\n- [llms.txt](https://atarcms.com/llms.txt)\n- [llms-full.txt](https://atarcms.com/llms-full.txt)\n\n## Main\n- [AtarCMS — a small CMS that AI agents can build, run and read](https://atarcms.com): AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin a…\n- [Accessibility statement](https://atarcms.com/accessibility)\n- [AtarCMS](https://atarcms.com/)\n- [How it works](https://atarcms.com/how-it-works)\n- [AI-ready](https://atarcms.com/ai-ready)\n- [Contacts](https://atarcms.com/contacts)\n- [llms.txt](https://atarcms.com/llms.txt)\n- [llms-full.txt](https://atarcms.com/llms-full.txt)\n- [Sitemap](https://atarcms.com/sitemap.xml)\n\n## Blog\n- [News](https://atarcms.com/news)\n- [News feed (RSS)](https://atarcms.com/news/feed.xml)\n\n## Legal\n- [Privacy policy](https://atarcms.com/privacy)\n\n## Support\n- [FAQ](https://atarcms.com/faq)\n\n",
  "llmsTxtExisting": "# AtarCMS\n\n> AtarCMS is an open-source PHP CMS for small multilingual sites, built so that AI agents can install it, run its admin and read the published site. MIT licence, one small VPS, no build step.\n\nSite languages: en (default)\n\nAppend .md to an entry's URL for a markdown version.\n\nThe full text of the entry pages: https://atarcms.com/llms-full.txt\n\n## Home page\n\n- [Home page](https://atarcms.com/)\n\n## Contacts\n\n- [Contacts](https://atarcms.com/contacts)\n\n## News\n\n- [AtarCMS v0.2.0: demo content that follows your brief](https://atarcms.com/news/atarcms-0-2-0)\n- [AtarCMS v0.1.0: the first public version](https://atarcms.com/news/atarcms-0-1-0)\n- [Hello from atarcms.com, built by an agent](https://atarcms.com/news/hello-from-atarcms-com)\n\n## FAQ\n\n- [CKEditor is GPL: does that affect my site?](https://atarcms.com/faq/ckeditor-and-gpl)\n- [Where is my data?](https://atarcms.com/faq/where-is-my-data)\n- [What hosting do I need?](https://atarcms.com/faq/what-hosting-do-i-need)\n- [What does it cost?](https://atarcms.com/faq/what-does-it-cost)\n- [What exactly can an AI agent do in the admin?](https://atarcms.com/faq/what-can-an-ai-agent-do-in-the-admin)\n- [How is this different from WordPress?](https://atarcms.com/faq/how-is-this-different-from-wordpress)\n- [Do I need a programmer?](https://atarcms.com/faq/do-i-need-a-programmer)\n\n## Pages\n\n- [Privacy policy](https://atarcms.com/privacy)\n- [Accessibility statement](https://atarcms.com/accessibility)\n- [How it works](https://atarcms.com/how-it-works)\n- [AI-ready](https://atarcms.com/ai-ready)\n\n## Tags\n\n- [Project](https://atarcms.com/tag/project)\n- [Releases](https://atarcms.com/tag/releases)",
  "emergingProtocols": {
    "oauthProtectedResource": {
      "exists": false,
      "url": "https://atarcms.com/.well-known/oauth-protected-resource"
    },
    "oauthDiscovery": {
      "exists": false,
      "url": "https://atarcms.com/.well-known/oauth-authorization-server"
    },
    "mcpServerCard": {
      "exists": false,
      "url": "https://atarcms.com/.well-known/mcp/server-card.json",
      "draft": true
    },
    "a2aAgentCard": {
      "exists": false,
      "url": "https://atarcms.com/.well-known/agent-card.json"
    },
    "apiCatalog": {
      "exists": false,
      "url": "https://atarcms.com/.well-known/api-catalog"
    },
    "agentSkills": {
      "exists": false,
      "url": "https://atarcms.com/.well-known/agent-skills/index.json",
      "draft": true
    },
    "count": 0,
    "total": 6
  },
  "botAccess": {
    "probed": true,
    "bot": "OAI-SearchBot",
    "controlStatus": 200,
    "botStatus": 200,
    "discriminates": false,
    "refusedAsBot": false,
    "edge": null,
    "verifiable": false,
    "detail": "This origin answers OAI-SearchBot exactly as it answers any other client (200). No edge-level filtering of AI crawlers observed."
  },
  "snippets": [
    {
      "id": "add_content_signals",
      "title": "Add Content-Signal directives",
      "description": "Content-Signal tells AI agents how they may use your content. The canonical location is robots.txt, but you can also expose it as an HTTP header from any stack.",
      "language": "txt",
      "code": "User-agent: *\nContent-Signal: search=yes, ai-input=yes, ai-train=no",
      "filename": "/robots.txt",
      "stacks": [
        {
          "id": "robots",
          "label": "robots.txt",
          "language": "txt",
          "filename": "/robots.txt",
          "code": "User-agent: *\nContent-Signal: search=yes, ai-input=yes, ai-train=no"
        },
        {
          "id": "nginx",
          "label": "Nginx",
          "language": "nginx",
          "filename": "server block",
          "code": "# Inside your server { } block:\nadd_header Content-Signal \"search=yes, ai-input=yes, ai-train=no\" always;"
        },
        {
          "id": "apache",
          "label": "Apache",
          "language": "apache",
          "filename": ".htaccess",
          "code": "# In .htaccess (or VirtualHost):\nHeader set Content-Signal \"search=yes, ai-input=yes, ai-train=no\""
        },
        {
          "id": "wordpress",
          "label": "WordPress",
          "language": "php",
          "filename": "functions.php",
          "code": "<?php\n// In your theme's functions.php or a small mu-plugin\nadd_action('send_headers', function () {\n    header('Content-Signal: search=yes, ai-input=yes, ai-train=no');\n});\n\n// Optional: also append the directive to the dynamic robots.txt\nadd_filter('robots_txt', function ($output) {\n    return $output . \"\\nContent-Signal: search=yes, ai-input=yes, ai-train=no\\n\";\n}, 10, 1);"
        },
        {
          "id": "nextjs",
          "label": "Next.js",
          "language": "typescript",
          "filename": "middleware.ts",
          "code": "// middleware.ts (Next.js 13+ App Router or Pages Router)\nimport { NextResponse } from 'next/server';\nexport function middleware() {\n  const res = NextResponse.next();\n  res.headers.set(\n    'Content-Signal',\n    'search=yes, ai-input=yes, ai-train=no'\n  );\n  return res;\n}\nexport const config = { matcher: '/:path*' };"
        },
        {
          "id": "cloudflare",
          "label": "Cloudflare Workers",
          "language": "javascript",
          "filename": "worker.js",
          "code": "// Cloudflare Worker that proxies your origin and adds the header\nexport default {\n  async fetch(request, env, ctx) {\n    const res = await fetch(request);\n    const newRes = new Response(res.body, res);\n    newRes.headers.set(\n      'Content-Signal',\n      'search=yes, ai-input=yes, ai-train=no'\n    );\n    return newRes;\n  },\n};"
        },
        {
          "id": "express",
          "label": "Express / Fastify",
          "language": "javascript",
          "filename": "server.js",
          "code": "// Express\napp.use((req, res, next) => {\n  res.setHeader('Content-Signal', 'search=yes, ai-input=yes, ai-train=no');\n  next();\n});\n\n// Fastify\nfastify.addHook('onSend', (request, reply, payload, done) => {\n  reply.header('Content-Signal', 'search=yes, ai-input=yes, ai-train=no');\n  done();\n});"
        }
      ]
    }
  ]
}

使用我们的API以编程方式获取此内容(即将推出)

此JSON供内部使用 — 与Markdown和llms.txt文件不同,它不适合上传到您的网站。将其保存为基准值以跟踪评分变化,与开发团队共享,或集成到CI/CD流水线中。

想听听第二种意见?

Cloudflare 也提供免费扫描工具,但它问的是另一个问题。他们评分的是你的站点为智能体调用而发布的东西:MCP server card、Agent Skills、API 目录、DNS 记录。我们评分的是智能体能否访问、读取并理解你的内容。一个站点可能在其中一项表现很好、另一项很差,所以看到两个不同的分数很正常:它们是两个不同问题的答案,都值得了解。

用 Cloudflare 扫描 atarcms.com

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AgentReady.md score for atarcms.com
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