UCP conformance score, top priorities, impact & effort matrix, and copy-paste fixes for every issue.
ruling-internal-experience-finally.trycloudflare.com publishes a conforming profile with broad capability coverage.
Agent Discovery is solid (95/100).
Fix broken spec or schema URLs → Move to the latest UCP protocol version → Publish a /llms.txt brand brief
One or more spec/schema URLs declared in the profile do not resolve.
Your profile declares a valid but older protocol version. A newer one is published.
No /llms.txt file detected at the root of your domain.
Prioritised recommendations by expected impact and implementation effort
High impact, low effort
High impact, high effort
Medium impact & effort
Lower priority
All improvements ranked by priority, with evidence and actionable fixes.
One or more spec/schema URLs declared in the profile do not resolve.
Spec and schema URLs let agents validate request/response shapes before sending. When they 404 or time out, runtime validation degrades to "best effort" and strict agents reject the integration entirely. Common cause: copy-pasting a placeholder URL during initial profile setup. See the Full Check Breakdown for the specific URLs that failed.
Your profile declares a valid but older protocol version. A newer one is published.
Older versions stay valid (agents use the version you declare), but newer abilities (embedded checkout, agent payment mandates, linked customer accounts, card authentication, payment terms and store location lookup) only work against the latest version. The profile itself barely changes: the signing keys move to a root-level "keys" list, and the rest of the update is in what capabilities can say.
Set the version to 2026-08-25 and publish your public keys as a root-level "keys" list. The older "signing_keys" field is still accepted, but "keys" is the one every verifier reads.
"ucp": {
"version": "2026-08-25",
...
},
"keys": [ ... ] // beside "ucp", not inside itNo /llms.txt file detected at the root of your domain.
llms.txt is an emerging convention (analogous to robots.txt) that lets you give AI agents a hand-written brief about your brand, product categories, return policy, and crawl preferences. Strict UCP agents do not require it, but recommendation/discovery agents increasingly read it for context.
Save as /llms.txt at your site root. Plain text, written for an LLM audience. The format is informal: these section headings are a working convention, not a spec. Replace the placeholders with your own brand details and update when policies or product lines change.
# llms.txt
# Public brief for AI agents about Yourstore
# About
One or two sentences on what you sell, who you sell to, and any defining context (founded, mission, sustainability stance, etc.).
# Product Categories
- Category one
- Category two
- Category three
# Policies
- Returns: e.g. 30 days, full refund
- Shipping: e.g. Free over $30, 3-5 business days
- Any other policy worth surfacing (cruelty-free, vegan, made-to-order, etc.)
# Agent Capabilities
- UCP manifest: /.well-known/ucp
- Supported flows: cart, checkout, tokenized payment, etc.
- Anything explicitly NOT supported (e.g. "no subscription products via agent")
# Contact
[email protected]Every signal we evaluate, grouped by category.
Can AI agents find your store and its UCP profile?
Profile served over a secure connection.
Profile URL uses https://
Agents reject non-HTTPS endpoints outright. Signed payloads over HTTP are meaningless because the channel itself is tamperable.
Profile fetched OK from /.well-known/ucp.
HTTP 200
Agents start every session by fetching this URL. If it 404s or times out, the store is invisible to agent commerce.
robots.txt allows agent crawlers to fetch the profile.
robots.txt allows /.well-known/ucp
Agents respect robots.txt. Even a published profile gets ignored if the file is disallowed for known agent user-agents.
Hand-written brief at /llms.txt for AI agents.
HTTP 404 at /llms.txt
Emerging convention (analogous to robots.txt). Recommendation/discovery agents read it for brand context, return policy, and crawl preferences.
XML sitemap published at /sitemap.xml.
Found at /sitemap.xml
Tells agents which pages are canonical and how often they change. Without it, agents fall back to following internal links.
OG meta tags on the homepage.
og:title and og:type/url present
OG tags drive how your store unfurls in agent surfaces, Slack, iMessage, and ChatGPT shares.
Schema.org Organization (or OnlineStore) JSON-LD on homepage.
Organization-typed JSON-LD detected
Gives agents a structured representation of your brand identity — used to verify you are who your profile claims you are.
Viewport meta tag for mobile rendering.
<meta name="viewport"> present
Mobile agent sessions render in browser sandboxes that respect this. Without it, screenshots taken by agents are unreadable.
Does your profile meet the published spec?
Profile structure conforms to the published UCP spec.
No structural errors
Strict UCP agents reject profiles with structural errors. The error code in the diagnostic shows which field failed.
ucp.version follows YYYY-MM-DD format.
Version: 2026-04-08
UCP versions are dates, not semver. Agents pick the closest matching schema based on this string.
Root-level keys array (canonical since 2026-07-12; legacy signing_keys also accepted) for response verification.
signing_keys present
Required for tokenized payment flows in v2026-04-08+. Stores using checkout-link redirects (e.g. WooCommerce native) often skip this safely.
Profile passes structural and field-level rules.
No outstanding validation issues
Each warning is a strict-spec deviation — the recommendations section above lists them with copy-code fixes.
Resolves the 11 spec/schema URLs declared across the profile to confirm agents can fetch each one.
Did not resolve (6 of 11): https://ucp.dev/latest/specification/shopping/, https://ucp.dev/schemas/shopping/cart.json, https://ucp.dev/schemas/shopping/catalog_search.json, https://ucp.dev/schemas/shopping/checkout.json, https://ucp.dev/schemas/shopping/order.json, …
Spec and schema URLs let agents validate request/response shapes before sending. Broken URLs degrade runtime validation to "best effort" and cause strict agents to refuse the capability entirely.
What operations can agents actually perform?
Number of agent-readable capabilities under ucp.capabilities.
5 of 6 capability families detected: Checkout, Identity Linking, Cart Management, Order Management, Catalog. A family counts once however many namespaces or extensions declare it.
Capabilities tell agents what operations to attempt. More coverage = more sessions complete end-to-end without falling back to scraping.
Store declares a checkout-namespaced capability.
dev.ucp.shopping.checkout detected
Without a checkout capability, agents can browse but can't complete a purchase end-to-end.
Service transports (REST/MCP/A2A/Embedded) declared on services.
REST, MCP
Transports tell agents how to actually call your endpoints. MCP and REST are the most widely supported today.
Tokenized payment handlers registered for in-conversation checkout.
1 handler registered
Tokenized payment lets agents complete purchases without redirecting the buyer to a hosted checkout. Empty by design is valid for WooCommerce-style native checkouts.
Live reachability check against https://ruling-internal-experience-finally.trycloudflare.com/ucp.
Host responded with HTTP 404 — endpoint reachable but path may be method-restricted
A declared transport that does not respond means agents will hit a dead end the moment they try to use the capability — even if the profile itself looks perfect.
Live reachability check against https://ruling-internal-experience-finally.trycloudflare.com/ucp/mcp.
tools/list returned a JSON-RPC response in 289ms
A declared transport that does not respond means agents will hit a dead end the moment they try to use the capability — even if the profile itself looks perfect.
| Cart ✓ Bound | 2026-04-08 |
| Order Management ✓ Bound | 2026-04-08 |
| Catalog ✓ Bound | 2026-04-08 |
| Checkout ✓ Bound | 2026-04-08 |
| Identity Linking ✓ Bound | 2026-04-08 |
| UCP Status | Verified |
| Endpoint | https://ruling-internal-experience-finally.trycloudflare.com/.well-known/ucp |
| HTTP Status | 200 |
| UCP Version | 2026-04-08 |
| Transports | REST, MCP |
| Last Observed | |
| Last Full Index |
Drop the live grade into your README, status page, or marketing site. The badge auto-updates as your score changes.
Live preview[](https://ucpchecker.com/score/ruling-internal-experience-finally.trycloudflare.com)<a href="https://ucpchecker.com/score/ruling-internal-experience-finally.trycloudflare.com"><img src="https://ucpchecker.com/score/ruling-internal-experience-finally.trycloudflare.com/badge.svg" alt="UCP Score for ruling-internal-experience-finally.trycloudflare.com"></a>This score reflects data from the most recent crawl. Run a fresh check to update, or read the methodology to see how each signal is scored.
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