Content-Signal & llms.txt Generator

Two emerging AI-visibility standards, built live in your browser and copy-pasteable straight into your own site. Nothing here is fetched or sent anywhere — everything generates client-side from what you type.

1. robots.txt Content-Signal snippet

Based on Cloudflare's Content Signals Policy (built on the IETF AI Preferences draft). It's a voluntary, three-way declaration — separate from Allow/Disallow crawl access — that only affects crawlers choosing to honor it.

Allow this content to be indexed and shown in search results.

ai-input

Allow use as real-time input to AI answers — RAG, grounding, live citations.

ai-train

Allow use for training or fine-tuning AI models.

Copied — paste this into your robots.txt.

2. llms.txt file

Follows the llms.txt spec: an H1 site name, a one-paragraph blockquote summary, then H2 sections of markdown links. A section titled Optional gets special meaning — models skip it first when short on context.

Site / project name (H1) One-paragraph summary (blockquote)

Copied — save this as /llms.txt at your domain root.

Don't forget the discovery tag

The 2026 llms.txt v2 update added a discovery link tag — this exact sandbox uses it on every page. Add it to your <head>: