Is your store agent-ready? Run the free UCP/ACP Validator

Loading...

Scanner Leaderboard Platforms Stats Playground Methodology

Home/UCP Validator/Transports/Embedded (ECP)

Transport

Embedded (ECP)

Embedded Checkout Protocol: postMessage handshake + CSP frame-ancestors.

3

Stores exposing Embedded (ECP)

21%

Of the verified pool

87

Average UCP score

3 of 14 verified stores21% adoption

Stores exposing Embedded (ECP)

Verified UCP stores in our monitoring pool that advertise and pass a live handshake on the Embedded (ECP) transport, ordered by UCP score.

Shopify/99 of 111 checks/Verified

wixstore.example

Wix/87 of 101 checks/Verified

nextwaves.example

Custom & Headless/82 of 102 checks/Verified

Explore other transports

MCP REST A2A Redirect

Optimize your ecommerce store for the agentic commerce era.

Resources

Blog
Query Fanouts Extension
UCP Validator
Protocol Tracker
Agent Directory
Contact

Features

Answer Engine Analytics
Traffic Analytics
Actionables
Shopping
Agentic Commerce

Legal

Privacy Policy
Terms of Service

© 2026 Rankly. All rights reserved.

Built for the AI-first web