ADP v3.0 Compliant
AI Discovery Protocol
Endpoints
23 machine-readable endpoints that help AI crawlers discover and index your content for potential citation.
23
Endpoints
11
AI Crawlers Tracked
0
Auth Required
<50ms
Response Time
Key Highlights
✓
All 23 endpoints are free to access with no authentication required
✓
Full CORS support (Access-Control-Allow-Origin: *) for cross-origin requests
✓
HTTP caching headers: ETag, Content-Digest (SHA-256), X-Update-Frequency
✓
Three llms.txt variants: lite (198 tokens), standard (1,247 tokens), full (13,451 tokens)
✓
Real-time news feeds update instantly when new press releases are published
Five-Layer Optimization Stack
This page implements all 5 layers of AI discoverability
Layer 1
SEO
✓
Layer 2
AEO
✓
Layer 3
GEO
✓
Layer 4
LLMO
✓
Layer 5
ADP
✓
All 23 Endpoints
Click any endpoint to view the live response
Core ADP Endpoints
/.well-known/ai.json
Main ADP manifest with protocol version, capabilities, and endpoint discovery
/.well-known/security.txt
Security contact and vulnerability disclosure information
/robots.txt
AI-friendly crawler rules allowing all major AI crawlers
/ai-sitemap.xml
Structured sitemap optimized for AI content discovery
/opensearch.xml
Browser search plugin integration for direct site search
Content Feeds
AI-Optimized Content
/llms.txt
Standard site overview for LLM context (1,247 tokens)
/llms-full.txt
Comprehensive crawlable content (13,451 tokens)
/llms-lite.txt
Minimal site overview (198 tokens)
/ai-discovery.json
Machine-readable meta-index entry point for AI systems
/ai-discovery.md
Human-readable ADP documentation in Markdown
/knowledge-graph.json
Schema.org JSON-LD entity catalog with relationships
News-Specific Endpoints
Frequently Asked Questions
The AI Discovery Protocol (ADP) v3.0 is a set of machine-readable endpoints that help AI crawlers and discovery systems find and index website content. Pressonify implements 18 ADP endpoints including llms.txt variants, knowledge graphs, JSON feeds, and real-time news APIs.
llms.txt is a plain text file that provides AI crawlers with a compact overview of your site's structure and key content. It makes your site easier for AI systems to discover and index. Pressonify offers three variants: llms.txt (1,247 tokens), llms-full.txt (13,451 tokens), and llms-lite.txt (198 tokens).
Yes, all 18 ADP endpoints are completely free to access. No authentication is required. They support CORS (Access-Control-Allow-Origin: *) for cross-origin requests and include caching headers (ETag, Content-Digest) for efficient polling.
The knowledge-graph.json endpoint provides a Schema.org JSON-LD catalog of all entities on the site: organizations, articles, products, and their relationships. Search engines use this to understand entity relationships, and AI crawlers can access it for entity context.
Update frequencies vary by endpoint: Realtime (news feeds, updates.json), Hourly (ai-discovery.json, knowledge-graph.json), Daily (llms.txt, ai-sitemap.xml), Weekly (changelog, robots.txt), and Monthly (security.txt, opensearch.xml). Each response includes an X-Update-Frequency header.
Want This for Your Site?
Get ADP-compliant press releases optimized for AI discoverability. Publish from €49.95 per release.