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achaheart.org

Adult Congenital Heart Association - Home - ACHA

AI Agentic Readiness

6 / 30

agentic checks passed
35% readiness - how well this site can be read, trusted and transacted with by AI agents

Last checked
22 Jul 2026

achaheart.org is live and passes 6 of 30 agentic-readiness checks (35%). It runs on cloudflare over HTTPS.

For AI agents, achaheart.org's strongest signals are fully indexable pages, a visually stable layout, a lightweight page, and dense, entity-rich content. Average entity density 51.0% across 1 pages (target >15%).

Its main gaps are thin semantic structure, no canonical URL, no structured tables or lists, and few clear definitions. The weakest area is Structured data; addressing it first would raise this score the most.

Agent interaction

✗Semantic HTML5 & AccessibilityOnly 17% of images have alt text

~Clean, Crawlable HTMLLimited semantic HTML5 usage

~Extraction Friction ScoreAverage sentence length: 26.7 words - slightly long

✓Indexability & Snippet EligibilityPages are indexable and snippet-eligible - the precondition for Google AI features is met

✓Layout Stability & ResponsivenessCustom web fonts load without preload or font-display - late font swaps shift text layout

✗Canonical URL StrategyNo canonical URL tag found

✓Page Speed: Page SizeLightweight document structure

~Page Speed: Load Blockers5 blocking stylesheets in <head>

Machine extraction

✗Table & List ExtractabilityNo HTML tables found across homepage

~Sentence AtomicityAverage 35% atomic sentences across 1 pages (target 40%+)

✓Entity DensityAverage entity density 51.0% across 1 pages (target >15%)

✗Definition PatternsNo definition patterns found

✓Answer Capsule Pattern4/6 H2 sections have 15-30 word self-contained capsules (67%)

Structured data

✗Schema.org Structured DataNo JSON-LD structured data found across homepage

✗Schema Coverage & DepthNo JSON-LD found - cannot assess schema coverage

✗Speakable SchemaNo JSON-LD found across homepage - cannot assess speakable schema

AI discovery

✗llms.txt FileNo llms.txt file found at https://achaheart.org/llms.txt (connection failed)

~robots.txt for AI CrawlersNo explicit AI crawler rules in robots.txt

✗Sitemap CompletenessNo sitemap.xml found

✗RSS/Atom FeedHomepage does not link to an RSS/Atom feed in <head>

✗Internationalization SignalsNo lang attribute on <html> element

✗Content Licensing & AI PermissionsNo ai.txt file found

Trust & transparency

✗Entity Authority & E-E-A-TNo Organization schema to reinforce entity identity

~Creator TransparencyVisible authorship is present on some content but inconsistent

~Methodology TransparencyLittle content-production or review transparency is visible

~AI Assistance DisclosureNo AI-assistance disclosure found on sampled pages (neutral - the engine cannot tell whether AI was used)

✗Visible Date SignalNo visible date signals found across homepage (no <time> elements, no JSON-LD dates, no article meta dates)

✓Title & Meta Quality1/1 pages lack a usable meta description

✗Content Freshness SignalsNo JSON-LD date properties (datePublished/dateModified) found across homepage

✗Author & Expert SchemaNo Person schema found across homepage

Every check is a verifiable fact about achaheart.org's live pages. Scoring follows Google Lighthouse agentic-browsing: a fraction of concrete checks, not an invented 0-100.

How to improve for AI agents

The highest-impact changes to make achaheart.org more agent-ready, in priority order.

1 Add structured tables and lists critical impact medium effort

Present achaheart.org's comparison and spec data as real HTML tables and lists agents can extract.

2 Strengthen entity authority (NAP) critical impact medium effort

Make achaheart.org's name, address and phone consistent and add Organization schema to anchor its identity.

3 Add content freshness signals critical impact medium effort

Refresh and re-date achaheart.org's key pages so agents see it as maintained.

4 Add definition-style content critical impact medium effort

Add clear "X is ..." definitions on achaheart.org so agents can lift direct answers.

Trust & legitimacy signals

✓Currently activeyes (HTTP 200)

✓Secure (HTTPS)yes

✓Identifiable technologycloudflare

Show your score

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Agentic readiness for achaheart.org last checked 22 Jul 2026. Machine-readable: JSON. Method: methodology.