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

92.2%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

Capabilities39

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 · 85–10092.2%

B · 70–845.3%

C · 50–690.2%

D · 30–492.2%

F · 0–290%

By store platform

average UCP Score

Shopify96

Wix85

Custom or not identified53

Shoptet88

Zid75

Jumpseller80

Salla94

Tray79

Matching stores

first 50 of 10,833

Rank	Store	Score ↓	Discovery	Conformance	Capabilities	Store platform
14	045gef-zq.myshopify.com	97 A	100	93	100	Shopify
14	0c6dd0-1d.myshopify.com	97 A	100	93	100	Shopify
14	0f03uj-mx.myshopify.com	97 A	100	93	100	Shopify
14	0hybpc-is.myshopify.com	97 A	100	93	100	Shopify
14	0n3itr-x0.myshopify.com	97 A	100	93	100	Shopify
14	1001knots.com	97 A	100	93	100	Shopify
14	10oversurf.com	97 A	100	93	100	Shopify
14	10x2studio.com	97 A	100	93	100	Shopify
14	1163c3-3.myshopify.com	97 A	100	93	100	Shopify
14	1234gorecords.shop	97 A	100	93	100	Shopify
14	12thtribe.com	97 A	100	93	100	Shopify
14	13moons.com	97 A	100	93	100	Shopify
14	17h10.com	97 A	100	93	100	Shopify
14	1861.ca	97 A	100	93	100	Shopify
14	18941d-2.myshopify.com	97 A	100	92	100	Shopify
14	1928.com	97 A	100	93	100	Shopify
14	1985games.com	97 A	100	93	100	Shopify
14	1bh0in-fb.myshopify.com	97 A	100	93	100	Shopify
14	1gmih3-5s.myshopify.com	97 A	100	93	100	Shopify
14	1percentfit.com	97 A	100	93	100	Shopify
14	1stphorm.com	97 A	100	93	100	Shopify
14	24hourcrafts.com	97 A	100	93	100	Shopify
14	29hood.com	97 A	100	93	100	Shopify
14	2modern.com	97 A	100	93	100	Shopify
14	2rstlife.com	97 A	100	93	100	Shopify
14	353customtackle.shop	97 A	100	93	100	Shopify
14	360fitnesssuperstore.com	97 A	100	93	100	Shopify
14	360petnutrition.com	97 A	100	93	100	Shopify
14	3730merch.com	97 A	100	93	100	Shopify
14	3dbldr.com	97 A	100	93	100	Shopify
14	3dhhobbies.ca	97 A	100	93	100	Shopify
14	3dprintingcanada.com	97 A	100	93	100	Shopify
14	3dproducts.com	97 A	100	93	100	Shopify
14	42exp.com	97 A	100	93	100	Shopify
14	43ce42-6f.myshopify.com	97 A	100	93	100	Shopify
14	45e8dc-2.myshopify.com	97 A	100	93	100	Shopify
14	46a146-be.myshopify.com	97 A	100	93	100	Shopify
14	48e.co	97 A	100	93	100	Shopify
14	4b0710-2.myshopify.com	97 A	100	93	100	Shopify
14	4pugs.com	97 A	100	93	100	Shopify
14	4tharq.com	97 A	100	93	100	Shopify
14	5150skateshop.com	97 A	100	93	100	Shopify
14	515i.com	97 A	100	93	100	Shopify
14	52e5ec-d6.myshopify.com	97 A	100	92	100	Shopify
14	54kibo.com	97 A	100	93	100	Shopify
14	55rkue-j0.myshopify.com	97 A	100	93	100	Shopify
14	5core.com	97 A	100	93	100	Shopify
14	5w4swn-x8.myshopify.com	97 A	100	93	100	Shopify
14	605xjn-m8.myshopify.com	97 A	100	93	100	Shopify
14	686.com	97 A	100	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.