UCP Score leaderboard

The stores we check, ranked by UCP Score: a number from 0 to 100 for how well a store's UCP profile follows the spec and what it lets a UCP agent do, made of Discovery, Conformance and Capabilities.

about 20,000stores we could score

90average UCP Score

92.6%score 85 or more (grade A)

Where the points go

average part score out of 100

Grade A stores

Discovery98

Conformance88

Capabilities92

Every other store we could score

Discovery90

Conformance71

Capabilities37

The UCP Score weighs Discovery 30%, Conformance 40% and Capabilities 30%. How the score is made →

Most common fixes

share of the stores we could score

SHOULD The profile has no ETag or Last-Modified header

Send an ETag or Last-Modified header with /.well-known/ucp so agents can revalidate their cached copy cheaply.

42.7%

MUST The profile isn't served with the caching the spec requires

Serve /.well-known/ucp with "Cache-Control: public, max-age=300" (public, at least 60 seconds, never private, no-store or no-cache).

41%

SHOULD supported_versions isn't laid out the way the spec says

Make supported_versions an object: each key a protocol version date, each value the https URL of the profile for that version.

1.2%

Spec checks every status page shows. Each store's own fixes are on its status page.

Grades

stores we could score

A · 85–10092.6%

B · 70–844.9%

C · 50–690.2%

D · 30–492.2%

F · 0–290%

By store platform

average UCP Score

Shopify96

Wix86

Custom or not identified52

Shoptet88

Zid75

Jumpseller80

Salla94

Tray79

Matching stores

first 50 of 534

Rank	Store	Score ↓	Discovery	Conformance	Capabilities	Store platform
1	assistant-experiments.vercel.app	100 A	100	100	100	Custom or not identified
1	devucp.netsgroup.com	100 A	100	100	100	Custom or not identified
1	ticketfairy.com	100 A	100	100	100	Custom or not identified
5	acs-exploration.vercel.app	99 A	100	100	95	Custom or not identified
5	book.hugocatarino.com	99 A	100	100	95	Custom or not identified
5	c73071f29621970e.finqustore.dev	99 A	95	100	100	Custom or not identified
5	vtex-ucp-adapter.vercel.app	99 A	100	100	95	Custom or not identified
7602	e-residence.com	96 A	100	100	88	Custom or not identified
7602	eshop.andyhoang.me	96 A	90	100	95	Custom or not identified
7602	food.ucpsandbox.com	96 A	95	99	92	Custom or not identified
7602	jrqxx1a5.finqustore.dev	96 A	100	100	85	Custom or not identified
7602	protherapysupplies.com	96 A	100	100	88	Custom or not identified
7602	scvd.store	96 A	100	93	95	Custom or not identified
10449	flowers.ucpsandbox.com	95 A	95	98	90	Custom or not identified
10746	scatterinstrumentsonline.com	94 A	95	100	85	Custom or not identified
10937	gentle-enough.ucp.consumergenie.net	93 A	80	100	95	Custom or not identified
10937	petcircle.com.au	93 A	100	100	77	Custom or not identified
10937	serverkast.com	93 A	100	97	80	Custom or not identified
10937	ucp.epromo.lt	93 A	75	100	100	Custom or not identified
10937	webside.gr	93 A	100	100	75	Custom or not identified
10937	zalando.co.uk	93 A	80	100	96	Custom or not identified
11019	magenxcommerce.com	92 A	85	100	87	Custom or not identified
11019	practical.stream	92 A	95	89	92	Custom or not identified
11019	seller.skybound-travel.com	92 A	80	100	94	Custom or not identified
11036	146.59.63.162.sslip.io	91 A	100	80	97	Custom or not identified
11036	commerciovirtuoso.it	91 A	100	97	75	Custom or not identified
11036	tortivega.com	91 A	95	89	90	Custom or not identified
11036	vibeshop.cz	91 A	100	93	80	Custom or not identified
11168	peralane.com	90 A	100	91	80	Custom or not identified
11168	ucp.sandbox-pachirapay.com	90 A	75	97	95	Custom or not identified
11168	webtoffee.com	90 A	100	79	95	Custom or not identified
11521	ausiafarms.pk	89 A	100	100	62	Custom or not identified
11521	dolcefalcone.com	89 A	90	97	77	Custom or not identified
11521	goedgemerkt.nl	89 A	90	89	88	Custom or not identified
11521	stg-us-com-next.api.3stripes.io	89 A	75	100	87	Custom or not identified
11543	catyai.io	88 A	100	93	68	Custom or not identified
11543	farma.universalcommerce.tech	88 A	85	92	85	Custom or not identified
11543	grayporter.com	88 A	95	92	77	Custom or not identified
11543	rosecottagecroft.co.uk	88 A	95	84	87	Custom or not identified
11543	theiconic.com.au	88 A	75	100	85	Custom or not identified
11543	theprintsmithstore.com	88 A	100	97	65	Custom or not identified
11543	ucpg.ai	88 A	80	97	85	Custom or not identified
11906	adorebeauty.com.au	87 A	75	100	82	Custom or not identified
11906	ogabassey.com	87 A	100	97	62	Custom or not identified
11906	shiptime.com	87 A	100	97	62	Custom or not identified
11906	vcst-qa-storefront.govirto.com	87 A	85	88	87	Custom or not identified
12023	aletzios.com	86 A	100	97	58	Custom or not identified
12023	app.ucpchecker.com	86 A	100	98	55	Custom or not identified
12023	boraboramx.com	86 A	100	97	58	Custom or not identified
12023	brooklynmx.com	86 A	100	97	58	Custom or not identified

Stores whose UCP profile we could read, valid or not; not found, blocked and unreachable stores have no score. Stores with the same score share a rank. Each store links to its score page.