UCP Checker
Check a store

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 64
RankStoreScore ↓ DiscoveryConformanceCapabilities Store platform
11075 scottishkiltshop.com 93 A 95 100 80 BigCommerce
11075 wholesaledomestic.com 93 A 95 100 80 BigCommerce
11146 shop.onsiteontime.com 92 A 80 100 94 BigCommerce
11162 brondell.com 91 A 90 100 80 BigCommerce
11162 ofinto.ch 91 A 90 100 80 BigCommerce
11293 deadbeatcustoms.com 90 A 85 100 80 BigCommerce
11293 edeshoes.com 90 A 85 100 80 BigCommerce
11293 formexwatch.com 90 A 85 100 80 BigCommerce
11293 kapiva.in 90 A 100 97 70 BigCommerce
11293 kongcompany.com 90 A 85 100 80 BigCommerce
11293 midwoodflowershop.com 90 A 85 100 80 BigCommerce
11293 pickleballcentral.com 90 A 85 100 80 BigCommerce
11293 touchupdirect.com 90 A 85 100 80 BigCommerce
11293 westendmotorsports.com 90 A 85 100 80 BigCommerce
11637 smallenginewarehouse.com 89 A 85 97 81 BigCommerce
11652 albanesecandy.com 88 A 80 100 80 BigCommerce
11652 bulkapothecary.com 88 A 80 100 80 BigCommerce
11652 castironradiators4u.co.uk 88 A 80 100 80 BigCommerce
11652 creole.net 88 A 80 100 80 BigCommerce
11652 dogwastedepot.com 88 A 80 100 80 BigCommerce
11652 guitarhotline.com 88 A 80 100 80 BigCommerce
11652 jacksonsleisure.com 88 A 80 100 80 BigCommerce
11652 morrisonsflowersandgifts.com 88 A 80 100 80 BigCommerce
11652 mountainroseherbs.com 88 A 80 100 80 BigCommerce
11652 smartpencentral.com 88 A 80 100 80 BigCommerce
11652 thehandkerchiefshop.com 88 A 80 100 80 BigCommerce
11652 ucp-authorizenet.mybigcommerce.com 88 A 80 100 80 BigCommerce
11652 ucp.my-staging.zone 88 A 80 100 80 BigCommerce
11652 ukcoolers.co.uk 88 A 80 100 80 BigCommerce
11652 untilgone.com 88 A 80 100 80 BigCommerce
12023 andertons.co.uk 87 A 80 100 75 BigCommerce
12023 auralex.com 87 A 80 97 81 BigCommerce
12023 bigcommerce-solution-expert.mybigcommerce.com 87 A 80 97 81 BigCommerce
12023 culturalelements.com 87 A 75 100 80 BigCommerce
12023 gtslotcars.com 87 A 75 100 80 BigCommerce
12023 ixilusa.com 87 A 80 97 81 BigCommerce
12023 nationalautismresources.com 87 A 90 97 70 BigCommerce
12023 oliveleafbloomington.com 87 A 80 97 81 BigCommerce
12023 oliveleafskincare.com 87 A 80 97 81 BigCommerce
12023 starwest-botanicals.com 87 A 75 100 80 BigCommerce
16357 bitek.com.au 85 A 85 97 70 BigCommerce
16357 medicaldistributiongroup.com 85 A 85 97 70 BigCommerce
16357 shop.osmaps.com 85 A 85 97 70 BigCommerce
16357 valinonline.com 85 A 85 97 70 BigCommerce
16357 zagg.com 85 A 85 97 70 BigCommerce
18878 4statetrucks.com 84 B 80 97 70 BigCommerce
18878 dawsonprecision.com 84 B 80 97 70 BigCommerce
18878 eslvision.com 84 B 80 97 70 BigCommerce
18878 mainfloral.net 84 B 80 97 70 BigCommerce
18878 marketplace.pseg.com 84 B 80 97 70 BigCommerce

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.