The assumption that AI assistants can read your website is broken. A new tool called AgentReady, posted to Hacker News on September 16, 2026, forces site owners to confront whether their content is actually being served to AI crawlers or if the assistants are operating blind. The tool performs real GET requests using the published user-agents of major AI assistants, verifying if the crawler receives the same page a human browser would.

The Reality Check for AI Visibility

AgentReady operates on a simple but brutal premise: if an AI assistant cannot fetch your page with its own user-agent, it is answering questions about you from somewhere else entirely. This 'somewhere else' is often a stale index, a secondary data source, or a hallucination based on training data. The tool provides a weighted assessment of seven distinct checks, prioritizing those that most critically impact an assistant's ability to parse and utilize your content.

Prioritizing Fixability Over Ease

Unlike standard SEO audits that might suggest quick wins, AgentReady orders its recommendations by points recoverable. This means it highlights the issues that will most significantly improve AI visibility, regardless of how difficult they are to implement. The tool also offers a self-contained SVG badge for site owners to display their grade and measurement date, linking back to the live report for verification. This badge is script-free and tracker-free, ensuring it doesn't compromise the very performance it aims to measure.

Key Takeaways

  • AI assistants may be using stale or secondary data if they fail to fetch your live HTML.
  • AgentReady uses real GET requests with specific AI user-agents to verify crawler access.
  • Recommendations are weighted by impact on AI visibility, not just ease of implementation.
  • A self-contained SVG badge allows sites to publicly display their AI-readiness grade.

The Bottom Line

SEO is no longer just about Google; it's about whether your content is legible to the agents that are increasingly becoming the interface for information retrieval. If you haven't tested your site against AI user-agents, you're flying blind in a market that's rapidly shifting from search engines to agent engines.