UCP Verification Report
b4fashion.cz
Live Universal Commerce Protocol & Agentic Commerce status, profile, and capability breakdown.
✓Verified
A
88/100
What is UCP? The Universal Commerce Protocol is the open standard AI shopping agents use to discover, browse, and check out at online stores. Read the spec overview →
88
/ 100
UCP Score
A
b4fashion.cz publishes a conforming profile with broad capability coverage.
Agent Discovery95
UCP Conformance88
Capability Coverage81
View the full UCP Score reportTop priorities, impact & effort matrix, and copy-paste fixes for every issue.
/llms.txt content
The plain-text brief this store publishes to AI agents. Captured on the most recent check.
# B4Fashion
B4Fashion je český e-shop s dámskou módou – trendy a stylové oblečení pro každou příležitost, od pohodlných každodenních kousků po elegantní outfity na speciální akce. Sídlí v Příbrami, veškeré zboží drží skladem.
## Sortiment
- [Novinky](https://www.b4fashion.cz/novinky/): nejnovější přírůstky do nabídky
- [Bestsellery](https://www.b4fashion.cz/bestsellery/): nejprodávanější kousky
- [Oblečení](https://www.b4fashion.cz/obleceni/): bundy a kabáty, trička a košile, kalhoty a džíny, šaty a tuniky, soupravy, šortky a sukně, saka, svetry a kardigany, mikiny
- [Doplňky](https://www.b4fashion.cz/doplnky/): batohy, čepice a rukavice, kabelky a ledvinky, pásky, ponožky a punčocháče, šály, boty, dárkové poukazy
- [Denim](https://www.b4fashion.cz/denim/): džínová kolekce
- [Mušelín](https://www.b4fashion.cz/muselin/): mušelínová kolekce
- [Výprodej](https://www.b4fashion.cz/vyprodej/): zlevněné zboží
## Informace pro zákazníky
- [Doprava a platba](https://www.b4fashion.cz/doprava-a-platba/): doprava zdarma při nákupu nad 2500 Kč, osobní odběr v Příbrami zdarma
- [Reklamace a vrácení zboží](https://www.b4fashion.cz/reklamace-a-vraceni/)
- [Obchodní podmínky](https://www.b4fashion.cz/obchodni-podminky/)
- [GDPR / Ochrana osobních údajů](https://www.b4fashion.cz/podminky-ochrany-osobnich-udaju/)
- [Kontakty](https://www.b4fashion.cz/kontakty/)
- [B4Blog](https://www.b4fashion.cz/b4blog/): články o novinkách a stylu
## Kontakt
- Provozovatel: B4 Fashion, Budovatelů 139, Příbram 8, 261 01
- E-mail: [email protected]
- Telefon: +420 735 900 505
- Facebook: https://www.facebook.com/profile.php?id=61557931787221Capabilities Detected
| Cart ✓ Bound | 2026-08-25 |
| Checkout ✓ Bound | 2026-08-25 |
| Fulfillment Extension ✓ Bound | 2026-08-25 |
| Catalog Lookup ✓ Bound | 2026-08-25 |
| Catalog Search ✓ Bound | 2026-08-25 |
Technical Vitals
| UCP Status | Verified |
| Endpoint | https://b4fashion.cz/.well-known/ucp |
| HTTP Status | 200 |
| UCP Version | 2026-08-25 |
| Transports | REST |
| Last Observed | |
| Last Full Index |
Next Steps
What you can do with this report
Open Validator
Inspect the profile line-by-line and see exactly which schema rules pass or fail.
Run validator →Simulate an Agent Shop
Send a real AI shopping agent to b4fashion.cz and watch it browse, cart, and check out.
Open in Playground ↗Claim this Store
Is b4fashion.cz yours? Verify with one DNS record and monitor it daily — trends, break alerts & benchmarks.
Start monitoring →
Domain Alerts
Get notified when b4fashion.cz changes
One email when the status flips — verified, broken, blocked, or back. No noise, no marketing. Free forever.
Access
AI Agent Access (robots.txt)
| GPTBotOpenAI / ChatGPT | ✓Allowed |
| Google-ExtendedGemini / Google | ✓Allowed |
| ClaudeBotClaude / Anthropic | ✓Allowed |
| Applebot-ExtendedApple Intelligence | ✓Allowed |
| CCBotCommon Crawl | ✓Allowed |
Google
Against Google's merchant guide
What Google's UCP merchant guide asks a store's profile to have, for checkout in AI Mode and Gemini. Read from the public profile only. Google's own sandbox, in Merchant Center, is invite-only; this is not Google's verdict.
| Speaks the release Google's guide usesThe guide is written for UCP 2026-04-08 or 2026-01-23; this profile is 2026-08-25. Add the release, or list it under supported_versions. | !Missing |
| Shopping service over RESTGoogle calls the REST endpoint. | ✓Has it |
| Checkout capabilitydev.ucp.shopping.checkout is declared. | ✓Has it |
| Order capability, for order updatesGoogle expects signed order webhooks after purchase (dev.ucp.shopping.order). | !Missing |
| Signing keys for webhooksOrder webhooks must be signed with a key published in the profile. | !Missing |
| Google Pay payment handlerGoogle completes checkout with a Google Pay token: publish a com.google.pay handler with your merchant name and id. | !Missing |
| Cart, discounts and fulfilmentcart declared, discounts not declared, fulfilment declared. Optional in the guide. | –Optional |
Needs a live checkout to show, so not read here: terms of service and privacy links on every checkout; carts that return continue_url and expires_at; a completed order with its label and permalink_url; errors in the 2026-04-08 shape (ucp.status "error", severity, continue_url).
Raw UCP Profile JSON
{
"ucp": {
"version": "2026-08-25",
"business": {
"url": "https://www.b4fashion.cz",
"name": "B4Fashion",
"contact": "[email protected]",
"supported_currencies": [
"CZK",
"EUR"
]
},
"services": {
"dev.ucp.shopping": [
{
"spec": "https://ucp.dev/2026-08-25/specification/overview",
"schema": "https://ucp.dev/2026-08-25/services/shopping/rest.openapi.json",
"version": "2026-08-25",
"endpoint": "https://www.b4fashion.cz/ucp/v1",
"transport": "rest"
}
]
},
"capabilities": {
"dev.ucp.shopping.cart": [
{
"spec": "https://ucp.dev/2026-08-25/specification/shopping/cart",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/cart.json",
"version": "2026-08-25"
}
],
"dev.ucp.shopping.checkout": [
{
"spec": "https://ucp.dev/2026-08-25/specification/shopping/checkout",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/checkout.json",
"version": "2026-08-25"
}
],
"dev.ucp.shopping.fulfillment": [
{
"spec": "https://ucp.dev/2026-08-25/specification/shopping/extensions/fulfillment",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/fulfillment.json",
"extends": "dev.ucp.shopping.checkout",
"version": "2026-08-25"
}
],
"dev.ucp.shopping.catalog.lookup": [
{
"spec": "https://ucp.dev/2026-08-25/specification/shopping/catalog/lookup",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/catalog_lookup.json",
"version": "2026-08-25"
}
],
"dev.ucp.shopping.catalog.search": [
{
"spec": "https://ucp.dev/2026-08-25/specification/shopping/catalog/search",
"schema": "https://ucp.dev/2026-08-25/schemas/shopping/catalog_search.json",
"version": "2026-08-25"
}
]
},
"payment_handlers": []
}
}
Capability Match
Other verified stores with similar capabilities
Stores that share the most UCP capabilities with b4fashion.cz, ranked by overlap.
Frequently Asked
About this b4fashion.cz report
What does it mean that b4fashion.cz is verified for UCP?
It means b4fashion.cz publishes a valid UCP profile at
/.well-known/ucp, the profile passes schema validation against 2026-08-25, and AI agents can discover its commerce capabilities without needing to scrape HTML. That is what the store declares. Whether an agent actually completes a purchase is a separate question — where an observed agent run is shown on this page, it answers that one.Can I trust b4fashion.cz for AI agent purchases?
Verification means the store is technically ready — payment handlers declared, transports reachable, schema valid. It doesn't grade business reputation or fulfilment quality. For trust on the commerce side itself, check the store's own reviews. For trust on the agent integration side, this page is the source of truth.
What platform does b4fashion.cz use for UCP?
Our detection identifies b4fashion.cz as running on Shoptet. Many large UCP-verified stores use Shopify, BigCommerce, or custom stacks built on the open spec. The transport list above shows the exact mechanism (REST, MCP, A2A, Embedded) the profile declares.
How was this UCP report for b4fashion.cz generated?
Our crawler fetches
b4fashion.cz/.well-known/ucp directly, parses the profile against the official UCP JSON schema, checks robots.txt for AI bot policies, and runs payment-handler validation. No manual review, no opinions — just what the profile actually says. The check ran 17 hours ago.How often is b4fashion.cz re-checked?
Every domain in our directory is re-crawled at least every 24 hours. You can also trigger a fresh check from this page at any time, or subscribe to alerts to get notified the moment the status changes — that's how we built the only continuously updated UCP directory on the internet.
Why does this status matter?
Universal Commerce Protocol is the standard AI shopping agents (ChatGPT, Claude, Gemini, Apple Intelligence) use to discover what a store sells, how to add items to a cart, and how to check out. If a store isn't UCP-verified, agents can still scrape it — but they'll be slower, less reliable, and far more likely to fail at checkout. UCP turns a guess into a guarantee.
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