txtcart.ai

9 things to fix

Each one has a prompt written for a coding agent. Paste it into Claude Code, Cursor or whatever you build with. Or take all of them in one go.

• robots.txt does not name a sitemap

  Missing

  A Sitemap line in robots.txt is how an agent finds a sitemap that is not at the default path.

  Add one line to robots.txt: Sitemap: https://txtcart.ai/sitemap.xml

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• No /.well-known/api-catalog

  Missing

  RFC 9727 defines this path as where an agent looks for the APIs a site offers.

  If you have a public API, list it at /.well-known/api-catalog. If you do not, this one is fair to ignore.

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• No MCP server card

  Missing

  If you run an MCP server, this file is how an agent finds it without being told the URL.

  Running an MCP server? Publish the card at /.well-known/mcp/server-card.json so an agent finds it on its own.

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• Accept: text/markdown returns HTML

  Missing

  Agents that ask for markdown get HTML they have to strip, which loses structure.

  Serve a markdown twin of each page when the request asks for text/markdown, or publish page.md beside page.

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• API errors come back as HTML

  Missing

  /api/seobuilder-agent-readiness-probe-404 answered 404 as text/html. An agent calling your API gets a page where it expected an error object.

  Make every /api/ route answer with JSON on failure too: a real status, and a body with a message field. An HTML error page is a parse error to a caller.

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• 2 H1 headings

  Missing

  More than one H1 splits what the page claims to be about.

  Leave exactly one H1 on the page, and make it the sentence you would want quoted back.

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• 2.17% of the homepage is readable text

  Partial

  9,102 characters of text inside 4,19,541 bytes of HTML. Everything else is markup an agent pays for and cannot use.

  Cut inlined state, framework payloads and repeated markup out of the HTML, or serve a markdown twin for agents that ask.

  Copy prompt

• 1 of 3 trust pages have real content

  Partial

  About: 404 at /about. Contact: 404 at /contact. Privacy: 9,436 characters at /privacy-policy/.

  Publish about, contact and privacy pages with at least 500 characters each. They are where an agent checks you are a real company before it recommends you.

  Copy prompt

• Organization schema is missing contactPoint and address

  Partial

  An agent can see who you are but not how to reach you, which is the half that decides whether it recommends you.

  Add Organization JSON-LD with name, url, logo, contactPoint and address. The contact fields are the ones agents quote.

  Copy prompt

Already passing (16)

• robots.txt is published
• OAI-SearchBot can read the site
• Claude-SearchBot can read the site
• PerplexityBot can read the site
• GPTBot can read the site
• ClaudeBot can read the site
• Google-Extended can read the site
• The sitemap is valid XML
• Link response headers are set
• /llms.txt is published
• llms.txt says what the site is for
• Missing pages return a real 404
• The homepage has a title
• The homepage has a meta description
• Valid JSON-LD structured data
• The page reads without JavaScript

Not your site?

The same check runs on anything. It fetches the page once and reads what an assistant would read, which is the server’s HTML, with no JavaScript and no scrolling.

Rank and bid from outbid.lol on 2026-08-22. Not affiliated with them. Want this page taken down? Ask us and it goes, no argument.