---
url: /tools/agent-response-check
title: "Agent response check — see what an AI agent receives from your URL — Siere"
description: "Free check: request your URL as an ordinary client and with documented AI crawler headers, then compare status, title, canonical, visible text and links. Evidence-labelled report you can share."
type: website
language: en
site_name: Siere
canonical: https://www.siere.ai/tools/agent-response-check
aeo_generated: 2026-08-24T15:04:16.242Z
---

[Learn](/learn)/Tools

# See what an AI agent actually receives from your URL

Enter a URL. Siere requests it as an ordinary client and again with the documented headers of the main AI search crawlers, then compares the responses. You get a shareable, evidence-labelled report — the same one every audit on this site produces — not a score invented for this page.

Website URL

Email address

Request Audit

Next

Free. The report is yours to share; observations beyond the first three need a sign-in.

## What is checked

- 01

Source completeness

How much visible text the ordinary source response contains before any JavaScript runs. Under 80 normalized characters is recorded as an empty application shell; under 300 as partial.

- 02

Access

The HTTP status of each request and whether the body carried a deterministic access-gate marker (bot block, captcha, login) despite a 200.

- 03

Fidelity

Whether title, canonical URL, redirect destination, visible words and important links match between the ordinary response and each crawler-header response.

- 04

Structure and identity

Whether the source carries a title, a resolvable canonical link and structured-data identifiers.

- 05

Discovery and experimental surfaces

robots.txt availability and the effective rule for each crawler token, sitemap.xml validity, and whether llms.txt / llms-full.txt exist (reported separately — they do not change delivery).

## How the evidence is labelled

Requests Siere sends with a crawler header are labelled simulated requests: they reproduce the documented header and prove how your server responds to it, not that the vendor crawled you. Fetches of your public files are labelled external probes. No observation is upgraded to a stronger claim than its method supports.

## Read the reasoning

- [What AI agents actually receive from JavaScript websites Most AI crawlers fetch the initial HTML and move on. If your page is a client-rendered application, that response can be an empty shell. Here is what is in the response, how to inspect it, and how the free audit measures it.](/learn/what-ai-agents-receive-from-javascript-websites)
- [Markdown endpoints versus SSR, prerendering, and edge middleware Four ways to give an agent a complete, structured response — compared on what they change, what they cost, what they can break, and how you prove each one worked.](/learn/markdown-endpoints-vs-ssr-prerendering-edge-middleware)
- [AI visibility dashboards show the problem. How do you fix it? Monitoring tools tell you a model did not mention or cite you. They cannot tell you what an agent actually received from your URL, or repair it. This guide separates measurement from remediation and shows the loop that closes the gap.](/learn/from-ai-visibility-dashboard-to-fix)

## Structured Data

```json
{
  "@context": "https://schema.org",
  "@type": "Organization",
  "@id": "https://www.siere.ai/#organization",
  "name": "Siere",
  "url": "https://www.siere.ai/",
  "logo": "https://www.siere.ai/social-square.png",
  "sameAs": [],
  "contactPoint": {
    "@type": "ContactPoint",
    "contactType": "customer support",
    "email": "contact@siere.ai",
    "url": "https://www.siere.ai/contact"
  }
}
```

```json
{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "@id": "https://www.siere.ai/#website",
  "name": "Siere",
  "url": "https://www.siere.ai/",
  "description": "Your website is invisible to AI agents. Siere fixes that. We make your site readable, structured, and optimized for the next generation of AI-powered search.",
  "publisher": {
    "@type": "Organization",
    "name": "Siere",
    "@id": "https://www.siere.ai/#organization"
  }
}
```

```json
{
  "@context": "https://schema.org",
  "@type": "SoftwareApplication",
  "@id": "https://www.siere.ai/#software",
  "name": "Agent Experience Optimization",
  "url": "https://www.siere.ai/",
  "description": "Your website is invisible to AI agents. Siere fixes that. We make your site readable, structured, and optimized for the next generation of AI-powered search.",
  "applicationCategory": "BusinessApplication",
  "operatingSystem": "Web",
  "offers": [
    {
      "@type": "Offer",
      "price": "0",
      "priceCurrency": "USD",
      "name": "Starter"
    },
    {
      "@type": "Offer",
      "price": "99",
      "priceCurrency": "USD",
      "name": "Pro"
    }
  ]
}
```

```json
{
  "@context": "https://schema.org",
  "@type": "FAQPage",
  "@id": "https://www.siere.ai/#faq",
  "url": "https://www.siere.ai/",
  "mainEntity": [
    {
      "@type": "Question",
      "name": "What is Agent Experience Optimization?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "AEO makes your website readable, structured, and reliably citable by AI agents like ChatGPT, Claude, Perplexity, and Gemini. Most modern websites are JavaScript-rendered and look like blank pages to AI crawlers — Siere fixes that without changing your visitor experience."
      }
    },
    {
      "@type": "Question",
      "name": "How does Siere work?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "Siere sits between your server and incoming requests. When an AI agent visits, Siere serves an optimized markdown version of your content. When a human visits, your normal page is served unchanged."
      }
    },
    {
      "@type": "Question",
      "name": "Do I need to change my site?",
      "acceptedAnswer": {
        "@type": "Answer",
        "text": "No. Siere installs as middleware. There are no content changes or rewrites required."
      }
    }
  ]
}
```