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

92.5%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.

43%

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).

41.2%

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 · 85–10092.5%

B · 70–845.1%

C · 50–690.2%

D · 30–492.2%

F · 0–290%

By store platform

average UCP Score

Shopify96

Wix85

Custom or not identified53

Salla95

Shoptet88

Zid75

Jumpseller80

Tray79

Matching stores

first 50 of 10,841

Rank	Store	Score ↑	Discovery	Conformance	Capabilities	Store platform
20268	justfab.cominvalid	37 D	80	33	0	Shopify
20268	shop.breeze.ininvalid	37 D	80	33	0	Shopify
20176	victorytailgate.cominvalid	39 D	85	33	0	Shopify
20176	woolrich.cominvalid	39 D	85	33	0	Shopify
20083	boden.co.ukinvalid	40 D	90	33	0	Shopify
20083	bodenusa.cominvalid	40 D	90	33	0	Shopify
20083	brownschefsmarket.cominvalid	40 D	90	33	0	Shopify
20083	chaumet.cominvalid	40 D	90	33	0	Shopify
20083	danielloboutique.itinvalid	40 D	90	33	0	Shopify
20083	design-bestseller.deinvalid	40 D	90	33	0	Shopify
20083	empathywines.cominvalid	40 D	90	33	0	Shopify
20083	epicrvmerch.cominvalid	40 D	90	33	0	Shopify
20083	hakocho.cominvalid	40 D	90	33	0	Shopify
20083	humankinetics.cominvalid	40 D	90	33	0	Shopify
20083	steg-electronics.chinvalid	40 D	90	33	0	Shopify
20079	ucp.txted.aiinvalid	41 D	85	38	0	Shopify
20015	madeincookware.cominvalid	43 D	100	33	0	Shopify
19934	austinhomebrew.cominvalid	52 C	90	47	20	Shopify
19930	home-appliances.philipsinvalid	54 C	100	46	20	Shopify
19921	escargot.cominvalid	60 C	95	53	35	Shopify
19831	yippypouches.cominvalid	74 B	100	53	75	Shopify
12148	cs-not-embedded-v1.myshopify.com	86 A	80	88	88	Shopify
12148	ucp-tester.myshopify.com	86 A	80	88	90	Shopify
12023	aditya-may.myshopify.com	87 A	80	91	90	Shopify
12023	app-install-16-07-2026-9h.myshopify.com	87 A	80	91	90	Shopify
12023	brink-dev-shop.myshopify.com	87 A	80	91	90	Shopify
12023	eattolivenottodie.com	87 A	85	83	95	Shopify
12023	geny-8990.myshopify.com	87 A	80	91	90	Shopify
12023	goodday-prod-harish-test.myshopify.com	87 A	80	90	90	Shopify
12023	md.aiconduit.app	87 A	85	93	81	Shopify
12023	refibuy.myshopify.com	87 A	80	91	90	Shopify
12023	shop.earbuds.com	87 A	80	91	90	Shopify
12023	staples.ca	87 A	80	91	90	Shopify
12023	test-loyalty-q0cvba5p.myshopify.com	87 A	80	91	90	Shopify
12023	ucp-test-sbcioyl8.myshopify.com	87 A	80	91	90	Shopify
12023	wfewfw-vxg70kxq.myshopify.com	87 A	80	91	90	Shopify
11293	1821manmade.com	90 A	75	93	100	Shopify
11293	acnhmall.com	90 A	75	93	100	Shopify
11293	arcreport.ai	90 A	100	88	81	Shopify
11293	autericshop-opsecure.azurewebsites.net	90 A	80	93	97	Shopify
11293	carenhancementsuk.co.uk	90 A	75	93	100	Shopify
11293	casparionline.com	90 A	75	93	100	Shopify
11293	garagegrowngear.com	90 A	75	93	100	Shopify
11293	infinityjars.com	90 A	95	93	80	Shopify
11293	rebeccaminkoff.com	90 A	75	93	100	Shopify
11293	robotshop.com	90 A	75	93	100	Shopify
11293	rugsusa.com	90 A	75	93	100	Shopify
11293	shop.topps.com	90 A	75	93	100	Shopify
11293	supplyme.com	90 A	75	93	100	Shopify
11293	tcwstencils.com	90 A	75	93	100	Shopify

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.