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UCP Score

UCP Score for helenwhite.co.uk

UCP conformance score, top priorities, impact & effort matrix, and copy-paste fixes for every issue.

✕Unreachable
A99/100
Analyzed Oct 5, 2026 · 2 recommendations ·Woocommerce · v2026-04-08 upgrade
UCP Conformance Score

No score: helenwhite.co.uk did not respond

The manifest endpoint timed out or returned a network error. Check uptime and DNS, then re-run the check.

Working

Agent Discovery is solid (100/100).

Blocking

Resolve connectivity / TLS issues: The manifest URL did not respond to the latest check.

Start Here

Resolve connectivity / TLS issues → Move to the latest UCP protocol version

Unreachable

helenwhite.co.uk did not respond to the latest check, so nothing was measured.

Latency
2,011ms
Version
2026-04-08
Robots.txt
Pending check

Top Priorities

1
Resolve connectivity / TLS issues

The manifest URL did not respond to the latest check.

High impact Medium effort
2
Move to the latest UCP protocol version

Your manifest declares a valid but older protocol version. A newer one is published.

Low impact Low effort

Impact & Effort Matrix

Prioritised recommendations by expected impact and implementation effort

Quick Wins(0)

High impact, low effort

  • No items
Strategic Investments(1)

High impact, high effort

  • Resolve connectivity / TLS issues
Incremental Gains(0)

Medium impact & effort

  • No items
Consider Later(1)

Lower priority

  • Move to the latest UCP protocol version

How you compare on Woocommerce

Response time benchmarked against 11 Woocommerces we monitor.

fastWoocommerce median 1245msslow
Your store
2011ms
Woocommerce percentile
Bottom quartile
Faster than 0% of Woocommerce stores
Cohort range
511–1494ms
p25 to p75 (middle half)
Latency considerationsWooCommerce stores typically respond ~7× slower than Shopify on the same operations. Consider edge-caching the manifest and product feed to close the gap.
Empty payment_handlers is OKWooCommerce stores using checkout-link redirects (the default native flow) can legitimately declare an empty payment_handlers array. Agents will redirect the buyer to your hosted checkout instead of tokenizing.

Recommendations

All improvements ranked by priority, with evidence and actionable fixes.

1

Resolve connectivity / TLS issues

High impact Medium effort

The manifest URL did not respond to the latest check.

Why it matters

Connection timeouts, DNS failures, or TLS handshake errors look identical to "store offline" from an agent's perspective. Continuous unreachability removes the store from agent surfaces.

UCP_UNREACHABLE
2

Move to the latest UCP protocol version

Low impact Low effort

Your manifest declares a valid but older protocol version. A newer one is published.

Why it matters

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 manifest 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.

Show fix

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 it
UCP_VERSION_OUTDATED

Full Check Breakdown

Every signal we evaluate, grouped by category.

Functional probes ran Sep 29, 2026. Transport and URL resolution rows may be stale. Run a fresh check to re-probe.
Agent Discovery6/8 passed

Can AI agents find your store and its UCP manifest?

  • HTTPSCore

    Manifest served over a secure connection.

    Manifest URL uses https://

    Why it matters

    Agents reject non-HTTPS endpoints outright. Signed payloads over HTTP are meaningless because the channel itself is tamperable.

  • UCP manifest reachableCore

    Manifest fetched OK from /.well-known/ucp.

    Not assessed: the store did not answer our request, so there was no manifest to read.

    Why it matters

    Agents start every session by fetching this URL. If it 404s or times out, the store is invisible to agent commerce.

  • AI bot accessCore

    robots.txt allows agent crawlers to fetch the manifest.

    No robots.txt detected (default-allow assumed)

    Why it matters

    Agents respect robots.txt. Even a published manifest gets ignored if the file is disallowed for known agent user-agents.

  • llms.txtExperimental

    Hand-written brief at /llms.txt for AI agents.

    Found at /llms.txt

    Why it matters

    Emerging convention (analogous to robots.txt). Recommendation/discovery agents read it for brand context, return policy, and crawl preferences.

  • sitemap.xmlCore

    XML sitemap published at /sitemap.xml.

    Found at /sitemap.xml

    Why it matters

    Tells agents which pages are canonical and how often they change. Without it, agents fall back to following internal links.

  • Open Graph tagsCore

    OG meta tags on the homepage.

    og:title and og:type/url present

    Why it matters

    OG tags drive how your store unfurls in agent surfaces, Slack, iMessage, and ChatGPT shares.

  • Organization schema (JSON-LD)Core

    Schema.org Organization (or OnlineStore) JSON-LD on homepage.

    Organization-typed JSON-LD detected

    Why it matters

    Gives agents a structured representation of your brand identity — used to verify you are who your manifest claims you are.

  • Mobile viewport metaCore

    Viewport meta tag for mobile rendering.

    <meta name="viewport"> present

    Why it matters

    Mobile agent sessions render in browser sandboxes that respect this. Without it, screenshots taken by agents are unreadable.

UCP Conformance1/2 passed

Does your manifest meet the published spec?

  • Manifest present for spec validationCore

    Conformance checks require a fetchable manifest.

    Not assessed: the store did not answer our request, so there was no manifest to read.

    Why it matters

    Once the manifest is fetchable, this section will show 4+ structural checks (validity, version format, signing keys, validation warnings).

  • Spec & schema URLs resolve (15)Core

    Resolves the 15 spec/schema URLs declared across the manifest to confirm agents can fetch each one.

    All 15 URLs resolved.

    Why it matters

    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.

Capability Coverage2/3 passed

What operations can agents actually perform?

  • Capabilities visibleCore

    Capability checks require a fetchable manifest.

    Not assessed: the store did not answer our request, so there was no manifest to read.

    Why it matters

    Once the manifest is fetchable, this section will show capability count, checkout coverage, transports, and payment handler health.

  • MCP transport reachableInterop

    Live reachability check against https://helenwhite.co.uk/ucp/mcp.

    tools/list returned a JSON-RPC response in 3233ms

    Why it matters

    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 manifest itself looks perfect.

  • REST transport reachableInterop

    Live reachability check against https://helenwhite.co.uk/ucp/v1.

    Reachable in 8065ms (HTTP 200)

    Why it matters

    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 manifest itself looks perfect.

/llms.txt content

The plain-text brief this store publishes to AI agents. Captured on the most recent check.

847 B6708a64909515d14
mentions UCP
# Helen White

> Beautiful artwork that stirs the emotions and piques the imagination

Helen White is an online store running WooCommerce. It publishes
agent-facing commerce endpoints implementing the Universal Commerce
Protocol (UCP), so AI agents can search the catalogue, check out and
track orders programmatically. Prices are in GBP.

## For agents

- UCP profile: https://helenwhite.co.uk/.well-known/ucp
- MCP endpoint: https://helenwhite.co.uk/ucp/mcp
- REST API: https://helenwhite.co.uk/ucp/v1
- OpenAPI document: https://helenwhite.co.uk/openapi.json
- Shopping skill: https://helenwhite.co.uk/.well-known/agent-skills/ucp-shopping/SKILL.md

## Policies

- Refund policy: https://helenwhite.co.uk/terms-conditions/
- Terms of service: https://helenwhite.co.uk/terms-conditions/
- Privacy policy: https://helenwhite.co.uk/privacy-policy/
View source ↗

Capabilities Detected

UCP capabilities supported by this endpoint
Order Management ✓ Bound 2026-04-08
Checkout ✓ Bound 2026-04-08
Fulfillment Extension ✓ Bound 2026-04-08
Identity Linking ✓ Bound 2026-04-08
Catalog Lookup ✓ Bound 2026-04-08
Catalog Search ✓ Bound 2026-04-08

Technical Vitals

Technical details for this UCP endpoint
UCP Status Unreachable
Endpoint https://helenwhite.co.uk/.well-known/ucp
HTTP Status —
UCP Version 2026-04-08
Transports MCP, REST
Last Observed
Last Full Index

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