UCP Checker
Check a store
UCP status report

big.pt

big.pt responded, but its profile did not pass schema validation.

Invalid
37/100
UCP Score · grade D →
5 problems · 5 passed
HTTP 200 Release none Checked 16 Oct, 16:00 UTC

Findings

5 passed · 5 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 →
To fix
Add Open Graph meta tags to the homepage
OG tags missing or incomplete on your homepage. How to fix →
Passed
5 OK
HTTPS, AI bot access, Mobile viewport meta, Public keys published, No validation warnings
Show all 5
  • HTTPS: Profile URL uses https://
  • AI bot access: robots.txt allows /.well-known/ucp
  • 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 big.pt 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 · 887 ms 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, 52.4 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, 52.4 KB of JSON887 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 · 112 lines 
<!doctype html>
<html class="" lang="pt">


<head>
    <script id="CookieConsent" src="https://policy.app.cookieinformation.com/uc.js" data-culture="PT" type="text/javascript" data-gcm-version="2.0"></script>
  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <meta name="keywords" content="" />
  <meta http-equiv="cache-control" content="no-cache" />
  <meta http-equiv="pragma" content="no-cache" />
  <meta name="google-site-verification" content="UkR_EFP_WHsbReR9aN7KzysFNO5hJGZqUWd-rtJyd8s" />
  <title>BiG | O banco que entende os seus valores.</title>
    <meta name="description" content="Tenha acesso às variadas formas de investimento, ajustadas ao seu perfil e disponibilidade de capital, com a ajuda de Consultores de Investimento especializados." />
  <link rel="icon" type="image/png" sizes="32x32" href="/Resources/images/favicon-32x32.png?7c2422" />
  <!-- ****************  CSS CALL  ************************** -->
  <link href="/Resources/styles/site/fonts.min.css" rel="stylesheet" type="text/css" />
  <link href="/Resources/styles/site/big.min.css?version=4" rel="stylesheet" type="text/css" />
  <link href="/Content/themeUiBi/assets/vendor_components/datatable/datatables.min.css" rel="stylesheet" />
  <!-- ************  JAVASCRIPT CALL  *********************** -->
  <script type="text/javascript" src="/Resources/scripts/big.min.js?7c2479"></script>
        <script type="text/javascript">big$ = $;</script>

<img height='1' width='1' style='display:none;' alt='pixel' src='https://dc.ads.linkedin.com/collect/?pid=1085628&amp;fmt=gif' aria-hidden="true" />


  



<script type="text/javascript" async="1">

    window.dataLayer = window.dataLayer || [];

    function gtag() { dataLayer.push(arguments); }

    // Default ad_storage to 'denied'.

    gtag('consent', 'default', {

        ad_storage: "denied",

        analytics_storage: "denied",

        functionality_storage: "denied",

        personalization_storage: "denied",

        security_storage: "denied",

        ad_user_data: "denied",

        ad_personalization: "denied",

        'wait_for_update': 500

    });

	function loadTryTagManager() {



				(function (w, d, s, l, i) {
					w[l] = w[l] || []; w[l].push({
						'gtm.start':
							new Date().getTime(), event: 'gtm.js'
					}); var f = d.getElementsByTagName(s)[0],
						j = d.createElement(s), dl = l != 'dataLayer' ? '&l=' + l : ''; j.async = true; j.src =
							'https://www.googletagmanager.com/gtm.js?id=' + i + dl; f.parentNode.insertBefore(j, f);
      })(window, document, 'script', 'dataLayer', 'GTM-W4CXNZ');

		
	}

	$(document).ready(function () {

        loadTryTagManager();

        //Render Metrics
        (function () {
            GeneratePDFMetrics()

            GenerateNavigationMetrics()

            const metrics = {
              "/Page/WarrantSearch" : WarrantsFilterMetrics,
              "/Page/SearchBondsReport": BondsFilterMetrics,
              "/OndeInvestir/SupermercadoFundos/Pesquisar": FundsFilterMetrics,
              "/Page/WarrantDetails": WarrantDetailsFilterMetrics,
            }

            let url = new URL(document.URL)

            for (const metric in metrics) {
              if (url.href.indexOf(metric) != -1) {
                if (metrics[metric] != undefined)
                  metrics[metric] (url.search)
              }
            }

        })();

        function GeneratePDFMetrics() {

            let uInfo = GetUInfo();

            var pdf = document.getElementsByClassName('dlPdf')
            for (i = 0; i < pdf.length; i++) {
                let currPDF = pdf[i]
                currPDF.onclick = function () {
                    window.dataLayer = window.dataLayer || [];...
What goes in a UCP profile →Check your JSON in the Validator →Guides by store platform →
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Questions

Why is big.pt'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 big.pt is agent-ready.
How can big.pt 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 big.pt 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 big.pt generated?
Our crawler fetches big.pt/.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 big.pt?
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.