UCP Checker
Check a store
UCP status report

thegreatcourses.com

thegreatcourses.com responded, but its profile did not pass schema validation.

Invalid
39/100
UCP Score · grade D →
4 problems · 6 passed
HTTP 200 Release none Checked 15 Oct, 18:00 UTC

Findings

6 passed · 4 problems
To fix first
Problem
Serve profile as application/json
The profile URL did not return parseable JSON. How to fix →
Also worth fixing
To fix
Publish Organization schema (JSON-LD) on the homepage
No Organization-typed JSON-LD detected on your homepage. How to fix →
To fix
Publish a /llms.txt brand brief
No /llms.txt file detected at the root of your domain. How to fix →
To fix
Publish a sitemap.xml
No sitemap.xml detected at the root of your domain. How to fix →
Passed
6 OK
HTTPS, AI bot access, Open Graph tags, Mobile viewport meta, Public keys published, No validation warnings
Show all 6
  • HTTPS: Profile URL uses https://
  • AI bot access: robots.txt allows /.well-known/ucp
  • Open Graph tags: og:title and og:type/url present
  • Mobile viewport meta: <meta name="viewport"> present
  • Public keys published: Keys published at the top level
  • No validation warnings: No outstanding validation issues
Check trace

How thegreatcourses.com answered our check

The five ways an agent can reach this store, what each one met, and every request we made.

1 of 5 open
4 requests · 1.69 s at the store · public requests only
  1. 01Hosting ↗
    Finding the profile
    Open
  2. 02Identity Linking ↗
    Acting for the buyer
    Not offered
  3. 03Embedded ↗
    In the buyer's browser
    Not offered
  4. 04Services ↗
    Calling its services
    None
  5. 05continue_url ↗
    Sending the buyer to the website
    Not declared
UCP Checkerpublic requests
  • 2 requestsFinding the profile/.well-known/ucp · 200
  • read from profileActing for the buyernot declared
  • read from profileIn the buyer's browsernot declared
  • not calledCalling its servicesnone declared
  • read from profileSending to the websitenot declared
  • 2 requestsOutside UCPhomepage · /llms.txt
Open
01 · Finding the profile2 requests
Served at /.well-known/ucp with 200 OK, 723.8 KB. robots.txt allows /.well-known/ucp.
Not offered
02 · Acting for the buyerread from profile
The profile doesn't declare identity linking, so an agent can't act for a signed-in buyer.
Not offered
03 · In the buyer's browserread from profile
No Embedded service is declared.
None
04 · Calling its servicesnot called
No services are declared.
Not declared
05 · Sending the buyer to the websiteread from profile
No permalink declared. Whether error replies carry a continue_url shows only in an agent run.
  1. 01 PROFILEGET /.well-known/ucp → 200, 723.8 KB of JSON1,687 ms
  2. 01 PROFILEGET /robots.txt → allows /.well-known/ucp–
  3. 01 PROFILEProfile did not pass schema validation: Response is not a valid JSON objectlocal
  4. OUTSIDE UCPGET / → 200, no Organization schema found–
  5. OUTSIDE UCPGET /llms.txt → 200, not found–
UCP profile as served 3.9 KB · 36 lines 
<!doctype html>
<html lang="en">
    <head >
        <script src="https://kit.fontawesome.com/68db959858.js" crossorigin="anonymous"></script>
<script>
    var BASE_URL = 'https://shop.thegreatcourses.com/';
    var require = {
        "baseUrl": "https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US"
    };
</script>
        <meta charset="utf-8"/>
<meta name="title" content="Shop Expert-Led Online Courses | The Great Courses Shop"/>
<meta name="description" content="Explore thousands of expert-led video courses. Shop all categories, from history and science to cooking and photography, and start learning today!"/>
<meta name="robots" content="INDEX,FOLLOW"/>
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1.0, user-scalable=no"/>
<meta name="format-detection" content="telephone=no"/>
<title>Shop Expert-Led Online Courses | The Great Courses Shop</title>
<link  rel="stylesheet" type="text/css"  media="all" href="https://shop.thegreatcourses.com/static/version1791560171/_cache/merged/2c2e266b471c6b1069694785a65afdb5.css" />
<link  rel="stylesheet" type="text/css"  media="all" href="//fonts.googleapis.com/css?family=Montserrat:light,medium,regular,semi-bold,bold,italic,regular|Zilla+Slab:medium,semi-bold&display=swap" />
<link  rel="stylesheet" type="text/css"  media="all" href="//use.typekit.net/lde2ycq.css" />
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/requirejs/require.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/mage/requirejs/mixins.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/requirejs-config.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/js/main.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Magento_Theme/js/view/bannerNavPosition.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Tgc_ABTest/js/set-direct-web-user-id.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Tgc_Hyva/js/cookies.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Tgc_Hyva/js/storage.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Tgc_Hyva/js/createStoreFromBase.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Tgc_Hyva/js/waitForStore.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Tgc_Hyva/js/helpers.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Tgc_Hyva/js/tgcStorage.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Tgc_SubscriptionFlow/js/plans-api.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Rb_Watchlist/js/watchlist.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version1791560171/frontend/Wondrium/default/en_US/Rb_ToaLectureProgress/js/lectureprogress.js"></script>
<script  type="text/javascript"  src="https://shop.thegreatcourses.com/static/version...
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Questions

Why is thegreatcourses.com's profile invalid?
We found a UCP profile, but it failed schema validation against the official spec. The findings on this page list what failed — usually missing required fields, wrong data types, or version mismatches. Agents reject profiles that don't validate, so this needs fixing before thegreatcourses.com is agent-ready.
How can thegreatcourses.com fix this?
Run the profile through our UCP Validator — it shows line-by-line schema deviations and how to fix each one. Most invalid profiles are quick fixes: a missing field, a typo, or an outdated spec version.
Does this mean thegreatcourses.com is broken for shoppers?
No — the regular website still works fine for human customers. Only AI agents that strictly validate the profile will refuse to use the UCP integration. The store just isn't agent-ready until the validation issues are resolved.
How was this UCP report for thegreatcourses.com generated?
Our crawler fetches thegreatcourses.com/.well-known/ucp directly, parses the profile against the official UCP JSON schema, checks robots.txt for its rules for AI crawlers, and runs payment-handler validation. No manual review, no opinions — just what the profile actually says. The check ran 1 day ago.
How do I get a newer result for thegreatcourses.com?
This page shows the stored result of our last check and when it was observed. To run a new check, use Check again on this page.
Why does this status matter?
Universal Commerce Protocol is an open standard that lets a UCP agent find out what a store sells, build a cart and check out through a published contract instead of reading web pages. A valid UCP profile is how a store declares that support.