AI Visibility Scorecard
21.dev
21.dev · Technology
Borderline visible. AI bots can crawl 21.dev, but the structured-data signals are thin - you are at real risk of being skipped when buyers ask ChatGPT, Claude, or Perplexity for a recommendation.
AI engines read this profile 2 times
Claude
#2,266,940 of 2,704,913 in Technology for AI visibility
<1
4
AEO Visibility
iNear-invisible · 3.5/10
40
Muse Index Score
iAI agent readiness
Agent-ready · 40/100
0
AI Adoption
iNone detected · 0/100
About 21.dev
from our crawl and measurement
21.dev describes itself simply: "Open-source tools for Bitcoin developers, Swift cryptography libraries, documentation, and developer resources." When AI engines look at it, they find little to work with. It scores 3.5 out of 10.
Our crawl found structured data on the page (WebSite, Organization, WebPage), an llms.txt file for AI models and a sitemap. It is missing a heading structure that lays out what it offers.
AI crawlers have visited once in our tracking, including ClaudeBot (Anthropic).
The 6 signals AI reads
Strong · Good · Fair · Weak
Structured Data
Good
Organization / LocalBusiness JSON-LD that AI can read.
Content Structure
Good
Clear headings and answer-style content.
Entity Clarity
Good
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
Strong
robots.txt, llms.txt, and AI-bot crawl access.
AI Discoverability
Good
Sitemaps and entity links AI can follow.
Off-page authority
How the web signals your brand to AI
Backlinks
Weak
No inbound links found yet.
Domain Authority
Weak
Little domain authority yet.
Reference Presence
Weak
Not in AI knowledge graphs yet.
News & Press
Weak
No press coverage found yet.
Community
Weak
No community discussion yet.
Social Mentions
Weak
No social discussion found yet.
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 3.5/10, 21.dev is crawlable but under-signaled - fixable, and the signals above are where to start.
Frequently Asked Questions
What is 21.dev?
21.dev is an organization dedicated to empowering developers with high-quality, open-source tools for building Bitcoin applications. We focus on creating robust software packages and libraries that make Bitcoin development more accessible and efficient for developers across multiple platforms.
Is this your brand?
The exact fixes for 21.dev
Which AI engines already crawl you
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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 October 3, 2026. Methodology: engagemii.com/aeo/methodology
Source URL: https://engagemii.com/aeo/brands/21-dev
Cite this score: Engagemii (2026). "AEO Score for 21.dev." Retrieved from https://engagemii.com/aeo/brands/21-dev
Licensed under CC BY 4.0. You may reuse this data with attribution: a visible link to engagemii.com.
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