AI Protocol Adoption Tracker
Track the adoption of AI protocols across the web. Week-over-week changes for llms.txt, MCP, NLWeb, schema markup, and AI bot access. Data from 5,705 website scans.
Current Adoption Rates
Schema Markup (Valid)
+0.4% this week
AI Bot Access (robots.txt)
-0.3% this week
llms.txt
+0.4% this week
NLWeb (Natural Language Web)
+0.1% this week
MCP (Model Context Protocol)
+0.1% this week
Structured FAQ Schema
+0.4% this week
Schema Markup (Valid)
Valid, parseable schema markup (Organization, WebSite, FAQPage, Article, or Product). Sites with complete schema markup are cited 3.2x more by AI models.
+0.4% WoW
This Week
34.2%
Last Week
33.8%
1 Month Ago
32.1%
3 Months Ago
28.4%
Top Implementers
Fortune 500 Adoption
of Fortune 500 websites have implemented schema markup (valid)
AgentReady Protocol Adoption Tracker (2026). "Schema Markup (Valid) Adoption Rate." N=5,705. agentready.site/data/protocol-adoption#schema-markup
AI Bot Access (robots.txt)
Percentage of websites that allow major AI crawlers (GPTBot, ClaudeBot, PerplexityBot) in their robots.txt. The downward trend reflects growing publisher pushback.
-0.3% WoW
This Week
72.1%
Last Week
72.4%
1 Month Ago
73.4%
3 Months Ago
76.2%
Top Implementers
Fortune 500 Adoption
of Fortune 500 websites have implemented ai bot access (robots.txt)
AgentReady Protocol Adoption Tracker (2026). "AI Bot Access (robots.txt) Adoption Rate." N=5,705. agentready.site/data/protocol-adoption#ai-bot-access
llms.txt
A machine-readable file that helps AI models understand a website's content, purpose, and preferred citation format. The AI equivalent of robots.txt. Fastest-growing protocol.
+0.4% WoW
This Week
8.4%
Last Week
8.0%
1 Month Ago
6.7%
3 Months Ago
3.1%
Top Implementers
Fortune 500 Adoption
of Fortune 500 websites have implemented llms.txt
AgentReady Protocol Adoption Tracker (2026). "llms.txt Adoption Rate." N=5,705. agentready.site/data/protocol-adoption#llms-txt
NLWeb (Natural Language Web)
Microsoft's protocol enabling websites to respond to natural language queries directly. Early-stage adoption concentrated in tech and SaaS verticals.
+0.1% WoW
This Week
1.8%
Last Week
1.7%
1 Month Ago
1.2%
3 Months Ago
0.3%
Top Implementers
Fortune 500 Adoption
of Fortune 500 websites have implemented nlweb (natural language web)
AgentReady Protocol Adoption Tracker (2026). "NLWeb (Natural Language Web) Adoption Rate." N=5,705. agentready.site/data/protocol-adoption#nlweb
MCP (Model Context Protocol)
Anthropic's open protocol for connecting AI models to external data sources and tools. Enables AI agents to interact with websites programmatically.
+0.1% WoW
This Week
1.2%
Last Week
1.1%
1 Month Ago
0.8%
3 Months Ago
0.2%
Top Implementers
Fortune 500 Adoption
of Fortune 500 websites have implemented mcp (model context protocol)
AgentReady Protocol Adoption Tracker (2026). "MCP (Model Context Protocol) Adoption Rate." N=5,705. agentready.site/data/protocol-adoption#mcp
Structured FAQ Schema
FAQPage schema markup that enables AI models to extract question-answer pairs. Correlates strongly with AI Overview inclusion and citation rates.
+0.4% WoW
This Week
22.3%
Last Week
21.9%
1 Month Ago
20.4%
3 Months Ago
17.1%
Top Implementers
Fortune 500 Adoption
of Fortune 500 websites have implemented structured faq schema
AgentReady Protocol Adoption Tracker (2026). "Structured FAQ Schema Adoption Rate." N=5,705. agentready.site/data/protocol-adoption#faq-schema
Cite This Page
Suggested Citation
AgentReady. (2026). AI Protocol Adoption Tracker. Retrieved from https://agentready.site/data/protocol-adoption
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Licensed under CC BY 4.0. Free to cite with attribution. Last updated: March 30, 2026.
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