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
92.6%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 64
RankStoreScore ↓ DiscoveryConformanceCapabilities Store platform
10937 scottishkiltshop.com 93 A 95 100 80 BigCommerce
10937 wholesaledomestic.com 93 A 95 100 80 BigCommerce
11019 shop.onsiteontime.com 92 A 80 100 94 BigCommerce
11036 brondell.com 91 A 90 100 80 BigCommerce
11036 ofinto.ch 91 A 90 100 80 BigCommerce
11168 deadbeatcustoms.com 90 A 85 100 80 BigCommerce
11168 edeshoes.com 90 A 85 100 80 BigCommerce
11168 formexwatch.com 90 A 85 100 80 BigCommerce
11168 kapiva.in 90 A 100 97 70 BigCommerce
11168 kongcompany.com 90 A 85 100 80 BigCommerce
11168 midwoodflowershop.com 90 A 85 100 80 BigCommerce
11168 pickleballcentral.com 90 A 85 100 80 BigCommerce
11168 touchupdirect.com 90 A 85 100 80 BigCommerce
11168 westendmotorsports.com 90 A 85 100 80 BigCommerce
11521 smallenginewarehouse.com 89 A 85 97 81 BigCommerce
11543 albanesecandy.com 88 A 80 100 80 BigCommerce
11543 bulkapothecary.com 88 A 80 100 80 BigCommerce
11543 castironradiators4u.co.uk 88 A 80 100 80 BigCommerce
11543 creole.net 88 A 80 100 80 BigCommerce
11543 dogwastedepot.com 88 A 80 100 80 BigCommerce
11543 guitarhotline.com 88 A 80 100 80 BigCommerce
11543 jacksonsleisure.com 88 A 80 100 80 BigCommerce
11543 morrisonsflowersandgifts.com 88 A 80 100 80 BigCommerce
11543 mountainroseherbs.com 88 A 80 100 80 BigCommerce
11543 smartpencentral.com 88 A 80 100 80 BigCommerce
11543 thehandkerchiefshop.com 88 A 80 100 80 BigCommerce
11543 ucp-authorizenet.mybigcommerce.com 88 A 80 100 80 BigCommerce
11543 ucp.my-staging.zone 88 A 80 100 80 BigCommerce
11543 ukcoolers.co.uk 88 A 80 100 80 BigCommerce
11543 untilgone.com 88 A 80 100 80 BigCommerce
11906 andertons.co.uk 87 A 80 100 75 BigCommerce
11906 auralex.com 87 A 80 97 81 BigCommerce
11906 bigcommerce-solution-expert.mybigcommerce.com 87 A 80 97 81 BigCommerce
11906 culturalelements.com 87 A 75 100 80 BigCommerce
11906 gtslotcars.com 87 A 75 100 80 BigCommerce
11906 ixilusa.com 87 A 80 97 81 BigCommerce
11906 nationalautismresources.com 87 A 90 97 70 BigCommerce
11906 oliveleafbloomington.com 87 A 80 97 81 BigCommerce
11906 oliveleafskincare.com 87 A 80 97 81 BigCommerce
11906 starwest-botanicals.com 87 A 75 100 80 BigCommerce
16294 bitek.com.au 85 A 85 97 70 BigCommerce
16294 medicaldistributiongroup.com 85 A 85 97 70 BigCommerce
16294 shop.osmaps.com 85 A 85 97 70 BigCommerce
16294 valinonline.com 85 A 85 97 70 BigCommerce
16294 zagg.com 85 A 85 97 70 BigCommerce
18777 4statetrucks.com 84 B 80 97 70 BigCommerce
18777 dawsonprecision.com 84 B 80 97 70 BigCommerce
18777 eslvision.com 84 B 80 97 70 BigCommerce
18777 mainfloral.net 84 B 80 97 70 BigCommerce
18777 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.