Skip to content
R

racing.nl

Compare
SCAN HISTORY
73/100 Compare
54/100 Compare
60/100 Compare
65/100 Compare

Result summary

Readiness profiles

Methodology legacy

Measured coverage

54/100

Methodology grade

C

48 checkpoints assessed

24

Passed

1

Partial

23

Failed

0

Skipped

Strongest category

AI Search Signals

Weakest category

Agent Protocols

Action plan

Priority actions Highest-impact implementation details
3 prioritized actions

Prioritized by exact impact on the overall stable-core score.

Failed HSTS header +3 overall pts

Strict-Transport-Security header is not set. Note: sites on the HSTS preload list may not send this header but are still protected via browser preloading.

HSTS header
HIGH

HSTS prevents protocol downgrade attacks by telling browsers to always use HTTPS. AI agents that follow redirects benefit from HSTS as it eliminates insecure initial connections.

Add the Strict-Transport-Security header with max-age=31536000 (1 year) and includeSubDomains. If your site is on the HSTS preload list (hstspreload.org), the header is still recommended for first-visit protection.

Server config plain 
# Nginx
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload" always;

# Apache (.htaccess)
Header always set Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
Sources
Failed llms.txt +3 overall pts

No valid llms.txt found at /llms.txt.

llms.txt
HIGH

llms.txt provides a curated entry point for AI agents — coding assistants, browsing agents, and task automation tools that fetch specific pages to complete tasks. Unlike crawlers that scrape everything, agents benefit from a structured overview of your most important pages.

Create an /llms.txt file with a markdown heading and relevant URLs to help LLMs understand your site.

llms.txt plain 
# /llms.txt
# racing.nl

> racing.nl - your site description here.

## Docs
- [Getting Started](https://racing.nl/docs/getting-started)
- [API Reference](https://racing.nl/docs/api)

## Optional
- [Blog](https://racing.nl/blog)
- [Changelog](https://racing.nl/changelog)
Sources
Failed Content negotiation (text/markdown) +3 overall pts

Server returned HTML (content-type: text/html; charset=UTF-8) when Accept: text/markdown was requested. No content negotiation support detected.

Content negotiation (text/markdown)
HIGH

AI agents fetch pages programmatically and benefit from machine-readable formats. Serving Markdown via Accept: text/markdown allows agents to consume structured content without HTML parsing overhead — saving up to 80% of tokens while preserving headings, links, and emphasis.

Serve Markdown when AI agents request it via `Accept: text/markdown`. Add a `Vary: Accept` header so CDN caches serve format-appropriate responses. 

# Express.js middleware
app.get('*', (req, res, next) => {
  if (req.accepts('text/markdown')) {
    res.set('Content-Type', 'text/markdown')
    res.set('Vary', 'Accept')
    return res.sendFile(markdownPath(req.path))
  }
  next()
})

# Phoenix / Plug
case get_req_header(conn, "accept") do
  [accept | _] when accept =~ "text/markdown" ->
    conn
    |> put_resp_content_type("text/markdown")
    |> put_resp_header("vary", "Accept")
    |> send_resp(200, markdown_for(conn.request_path))
    |> halt()
  _ -> conn
end

# Test: curl -H "Accept: text/markdown" https://racing.nl/
Sources
Fix with AI Skills
$ /plugin marketplace add bartwaardenburg/isagentready-skills

Detailed results

Agent Protocols Weight 15% Needs attention

9 failed checkpoints

0/100
AI Content Discovery Weight 30% Needs attention

4 failed, 1 partial

59/100
Security & Trust Weight 15% Needs attention

5 failed checkpoints

35/100
Content & Semantics Weight 20% Needs attention

3 failed checkpoints

75/100
AI Search Signals Weight 20% Needs attention

2 failed checkpoints

79/100
AI Training Exposure Supplemental

Does not affect the readiness score

No AI training protections detected. Your content may be freely used for AI model training.

Common Crawl presence Unknown

Could not determine the latest Common Crawl index.

Training crawler blocking Not found

No training crawlers are blocked in robots.txt. All known AI training bots can access your content.

TDMRep declaration Not found

No TDMRep file found at /.well-known/tdmrep.json. The TDM Reservation Protocol (W3C) lets you declare whether you reserve text and data mining rights. See w3.org/community/reports/tdmrep/CG-FINAL-tdmrep-20240510 for the specification.

ai.txt policy Not found

No ai.txt file found. ai.txt lets you declare AI usage preferences for your content.

Web Bot Auth Not found

No Web Bot Auth signature key directory found. Bots cannot prove their identity to origins via signed HTTP requests.

Developer Tools

Scan and fix from your editor

Install our MCP server to scan any website from your terminal. Pair it with AI agent skills to fix failing checks automatically.

  • Scan any website directly from your terminal
  • Fix failing checks with AI agent skills
  • Re-scan to verify improvements
SCAN
claude mcp add isagentready-mcp -- npx -y isagentready-mcp
FIX
/plugin marketplace add bartwaardenburg/isagentready-skills
MCP Server AI Skills
Request a detailed report Optional follow-up with a personalized PDF report
Free PDF Report

Get your detailed report

Receive a personalized report with actionable insights for improving your website's AI agent readiness.

  • Detailed score breakdown per category
  • Prioritized improvement recommendations
  • Step-by-step implementation guide

We'll use this address to send report updates.