▼ 2.0 since Aug 2026
#10,934 OF 123,551 IN GOVERNMENT & PUBLIC SECTOR
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AI Visibility Scorecard
Matt Castelli’s Substack
mattcastelli.substack.com · Government & Public Sector
Somewhat visible. AI bots can read Matt Castelli’s Substack, but it is missing the structured signals that push citation rate above competitors.
Monitoring for AI engine activity
In the Engagemii AEO index
#10,934 of 123,551 in Government & Public Sector for AI visibility
6
AEO Visibility
iBorderline · 5.8/10
5
Muse Index Score
iAI agent readiness
Basic · 5/100
0
AI Adoption
iNone detected · 0/100
About Matt Castelli’s Substack
from our crawl and measurement
Matt Castelli’s Substack is a business whose own site puts it this way: "I believe in government. And I refuse to pretend it's working. Government isn't broken because there's too much or too little of it." To AI engines like ChatGPT and Perplexity it is one of the more visible businesses we measure, scoring 7.8 out of 10.
Our crawl found a sitemap. It is missing structured data describing the business, an llms.txt file and a heading structure that lays out what it offers.
The 6 signals AI reads
Strong · Good · Fair · Weak
Structured Data
Weak
Organization / LocalBusiness JSON-LD that AI can read.
Content Structure
Weak
Clear headings and answer-style content.
Entity Clarity
Fair
How clearly your brand identity reads to AI.
E-E-A-T Signals
Experience, Expertise, Authority, Trust
Weak
Experience, Expertise, Authority, Trust markers.
Technical AEO
Good
robots.txt, llms.txt, and AI-bot crawl access.
AI Discoverability
Weak
Sitemaps and entity links AI can follow.
Off-page authority
How the web signals your brand to AI
Backlinks
Strong
Inbound links from other sites.
Domain Authority
Strong
Established authority for your domain.
Reference Presence
Strong
Recognized in AI knowledge graphs.
News & Press
Strong
Press and news coverage.
Community
Strong
Forum and community discussion.
Social Mentions
Strong
Social discussion and mentions.
What this score means
Your AEO score measures whether AI search engines - ChatGPT, Claude, Perplexity, Gemini - can actually read your site and cite it in answers. Roughly two-thirds of sites are invisible to them. At 5.8/10, Matt Castelli’s Substack has a working base to build on - fixable, and the signals above are where to start.
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How to Get Your Brand Cited by ChatGPT, Gemini, and Claude: The Complete AEO Guide
The search landscape has fundamentally shifted. While Google still dominates, millions of users now ask questions to ChatGPT, Gemini, and Claude instead of typing into a search bar.
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Source & Attribution
Scored by Engagemii on August 30, 2026. Methodology: engagemii.com/aeo/methodology
Source URL: https://engagemii.com/aeo/brands/mattcastelli-substack
Cite this score: Engagemii (2026). "AEO Score for Matt Castelli’s Substack." Retrieved from https://engagemii.com/aeo/brands/mattcastelli-substack
Licensed under CC BY 4.0. You may reuse this data with attribution: a visible link to engagemii.com.
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