UCP status report

heinrichaudio.com.br

Q: What is a UCP profile?

The JSON file a store publishes at /.well-known/ucp to tell UCP agents which services it offers, how to call them and how it takes payment. The spec calls it the business profile. heinrichaudio.com.br's is 0.9 KB, written for UCP 2026-08-25. What goes in a UCP profile.

Q: How was heinrichaudio.com.br checked?

With public requests on 6 Nov 2026: we read /.well-known/ucp and robots.txt, validated the profile against UCP 2026-08-25, checked that its spec and schema links resolve. No sign-in and no purchase. How we check.

Verified

heinrichaudio.com.br publishes a valid UCP profile, but one thing breaks the spec: it isn't served with the caching the spec requires.

TrayMCPHTTP 200 in 174 msrelease 2026-08-25

UCP Score 78/100 grade B · nearly there To fix 5 1 breaks the spec

Passed 10 checks

Checked 6 Nov 07:52 UTC · signed public requests

Findings

10 passed · 5 to fix

Discovery

Problem

The profile isn't served with the caching the spec requires

Served with Cache-Control "max-age=14400". Spec level: MUST.

To fix

The profile has no ETag or Last-Modified header

Spec level: SHOULD.

To fix

Your store lives on www.heinrichaudio.com.br; heinrichaudio.com.br only redirects to it

How we decided: heinrichaudio.com.br forwards its homepage to www.heinrichaudio.com.br; your homepage names www.heinrichaudio.com.br as its canonical address; and your UCP profile is served directly at www.heinrichaudio.com.br/.well-known/ucp. An agent given heinrichaudio.com.br instead gets a redirect, and the spec tells agents not to follow one, so it stops there. Serve /.well-known/ucp directly on heinrichaudio.com.br too if agents may use it.

HTTPS

https

Profile URL uses https://

https

UCP profile reachable

/.well-known/ucp

HTTP 200

/.well-known/ucp

AI bot access

robots.txt

robots.txt allows /.well-known/ucp

robots.txt

UCP profile

To fix

Cryptographic message signing is not yet enabled

keys

Your UCP profile lists no public keys, so cryptographic message signing is not yet enabled for this store. HTTPS already confirms your store's identity; signing adds a further layer for checkout, payment and webhook messages.

keys

Profile passes schema validation

ucp

No structural errors

ucp

Protocol version present and well-formed

ucp.version

Version: 2026-08-25

ucp.version

Services

Transports declared

services

MCP

services

Outside UCP

To fix

Publish Organization schema (JSON-LD) on the homepage

JSON-LD

No Organization-typed JSON-LD detected on your homepage.

JSON-LD

llms.txt

/llms.txt

Found at /llms.txt

/llms.txt

sitemap.xml

/sitemap.xml

Found at /sitemap.xml

/sitemap.xml

Open Graph tags

og: meta

og:title and og:type/url present

og: meta

Mobile viewport meta

meta viewport

meta viewport

Check trace

How heinrichaudio.com.br 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
11 requests over 11 connections · 1.59 s at the store + 2.61 s network · signed requests · How it fetches ›

01Hosting ↗

Finding the profile

Open
02Identity Linking ↗

Acting for the buyer

Not offered
03Embedded ↗

In the buyer's browser

Not offered
04Services ↗

Calling its services

Declared
05continue_url ↗

Sending the buyer to the website

Not declared

UCP CheckerUCPCheckerBot/1.0

Signed · Web Bot Auth
key K_DlV2MybP…

How to verify us ↗

Finding the profile/.well-known/ucp · 200
1. GET /robots.txt301 Moved Permanently349 ms
2. GET www.heinrichaudio.com.br/robots.txt200 OK246 ms
3. GET /.well-known/ucp301 Moved Permanently347 ms
4. GET www.heinrichaudio.com.br/.well-known/ucp200 OK332 ms
5. GET www.heinrichaudio.com.br/robots.txt200 OK88 ms
6. GET www.heinrichaudio.com.br/.well-known/ucp200 OK174 ms
read from profileActing for the buyernot declared
read from profileIn the buyer's browsernot declared
not calledCalling its servicesMCP · declared · 3 tools
read from profileSending to the websitenot declared
Outside UCPhomepage · /llms.txt
1. GET /301 Moved Permanently497 ms
2. GET www.heinrichaudio.com.br/200 OK216 ms
3. GET www.heinrichaudio.com.br/200 OK399 ms
4. GET www.heinrichaudio.com.br/llms.txt200 OK666 ms
5. GET www.heinrichaudio.com.br/sitemap.xml200 OK885 ms

Open

01 · Finding the profile6 requests

Served at www.heinrichaudio.com.br/.well-known/ucp with 200 OK, 932 B. heinrichaudio.com.br only redirects to it. 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.

Declared

04 · Calling its servicesnot called

The MCP service is declared; not called by this check.

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.

01 · Finding the profile6 requests · 2 × 301 Moved Permanently · 4 × 200 OK3,248 ms

GET /robots.txt 301 Moved Permanently → www.heinrichaudio.com.br/robots.txt 349 ms

Redirected to https://www.heinrichaudio.com.br/robots.txt.

DNS 0 ms
Connect 112 ms
TLS 125 ms
Wait 111 ms
Download 0 ms

URL: https://heinrichaudio.com.br/robots.txt
Server: 177.67.112.238
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: text/plain
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: openresty
Got content-type: text/html
Got location: https://www.heinrichaudio.com.br/robots.txt

GET www.heinrichaudio.com.br/robots.txt 200 OK 11.7 KB · text/plain 246 ms

Answered.

DNS 4 ms
Connect 4 ms
TLS 110 ms
Wait 121 ms
Download 5 ms

URL: https://www.heinrichaudio.com.br/robots.txt
Server: 206.41.74.3
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: text/plain
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: nginx
Got content-type: text/plain;charset=ISO-8859-1
Got cache-control: max-age=14400

GET /.well-known/ucp 301 Moved Permanently → www.heinrichaudio.com.br/.well-known/ucp 347 ms

Redirected to https://www.heinrichaudio.com.br/.well-known/ucp.

DNS 0 ms
Connect 111 ms
TLS 124 ms
Wait 111 ms
Download 0 ms

URL: https://heinrichaudio.com.br/.well-known/ucp
Server: 177.67.112.238
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: application/json
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: openresty
Got content-type: text/html
Got location: https://www.heinrichaudio.com.br/.well-known/ucp

GET www.heinrichaudio.com.br/.well-known/ucp 200 OK 932 B · application/json 332 ms

Answered.

DNS 0 ms
Connect 2 ms
TLS 61 ms
Wait 268 ms
Download 0 ms

URL: https://www.heinrichaudio.com.br/.well-known/ucp
Server: 206.41.74.3
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: application/json
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: nginx
Got content-type: application/json; charset=utf-8
Got cache-control: max-age=14400

GET www.heinrichaudio.com.br/robots.txt 200 OK 11.7 KB · text/plain 88 ms

Answered.

DNS 0 ms
Connect 1 ms
TLS 81 ms
Wait 4 ms
Download 0 ms

URL: https://www.heinrichaudio.com.br/robots.txt
Server: 206.41.74.3
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: text/plain
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: nginx
Got content-type: text/plain;charset=ISO-8859-1
Got cache-control: max-age=14400

GET www.heinrichaudio.com.br/.well-known/ucp 200 OK 932 B · application/json 174 ms

Answered.

DNS 0 ms
Connect 6 ms
TLS 165 ms
Wait 2 ms
Download 0 ms

URL: https://www.heinrichaudio.com.br/.well-known/ucp
Server: 206.41.74.3
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: application/json
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: nginx
Got content-type: application/json; charset=utf-8
Got cache-control: max-age=14400

Outside UCP · its other files5 requests · 301 Moved Permanently · 4 × 200 OK1,896 ms

GET / 301 Moved Permanently → www.heinrichaudio.com.br/ 497 ms

Redirected to https://www.heinrichaudio.com.br/.

DNS 0 ms
Connect 117 ms
TLS 267 ms
Wait 112 ms
Download 0 ms

URL: https://heinrichaudio.com.br/
Server: 177.67.112.238
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: text/html
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: openresty
Got content-type: text/html
Got location: https://www.heinrichaudio.com.br/

GET www.heinrichaudio.com.br/ 200 OK 1,514.3 KB · text/html 216 ms

Answered.

DNS 0 ms
Connect 4 ms
TLS 181 ms
Wait 3 ms
Download 27 ms

URL: https://www.heinrichaudio.com.br/
Server: 206.41.74.3
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: text/html
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: nginx
Got content-type: text/html; charset=ISO-8859-1
Got cache-control: max-age=14400

GET www.heinrichaudio.com.br/ 200 OK 1,514.3 KB · text/html 399 ms

Answered.

DNS 0 ms
Connect 2 ms
TLS 371 ms
Wait 8 ms
Download 18 ms

URL: https://www.heinrichaudio.com.br/
Server: 206.41.74.3
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: nginx
Got content-type: text/html; charset=ISO-8859-1
Got cache-control: max-age=14400

GET www.heinrichaudio.com.br/llms.txt 200 OK 1.7 KB · text/plain 666 ms

Answered.

DNS 0 ms
Connect 122 ms
TLS 252 ms
Wait 291 ms
Download 0 ms

URL: https://www.heinrichaudio.com.br/llms.txt
Server: 206.41.74.3
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: text/plain
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: nginx
Got content-type: text/plain; charset=utf-8
Got cache-control: max-age=14400

GET www.heinrichaudio.com.br/sitemap.xml 200 OK 251 B · application/xml 885 ms

Answered.

DNS 0 ms
Connect 199 ms
TLS 177 ms
Wait 507 ms
Download 0 ms

URL: https://www.heinrichaudio.com.br/sitemap.xml
Server: 206.41.74.3
Sent user-agent: UCPCheckerBot/1.0 (+https://ucpchecker.com/methodology)
Sent accept: application/xml,text/xml
Sent signature-agent: "https://ucpchecker.com"
Sent signature: Web Bot Auth (RFC 9421)
Got server: nginx
Got content-type: application/xml
Got cache-control: max-age=14400

01 PROFILEValid against the 2026-08-25 schema; no keys published

How agents reach this store. heinrichaudio.com.br's UCP profile (2026-08-25) declares one transport for dev.ucp.shopping: MCP. One panel per transport, in the spec's words.

Capabilities

2 declared · all at 2026-08-25

Catalog Lookup dev.ucp.shopping.catalog.lookup

MCP

Catalog Search dev.ucp.shopping.catalog.search

MCP

MCP

no tool list returned

Endpointhttps://www.heinrichaudio.com.br/mcp-app/ucp

The tools the UCP spec defines for each capability in the profile. The store's MCP service didn't return a tool list to our check (tools/list), so we can't say which it lists.

Catalog searchdev.ucp.shopping.catalog.search

search_catalog

Catalog lookupdev.ucp.shopping.catalog.lookup

lookup_catalogget_product

UCP profile as served 932 B as served · 37 lines

{
    "ucp": {
        "version": "2026-08-25",
        "supported_versions": {
            "2026-08-25": "https://www.heinrichaudio.com.br/.well-known/ucp/2026-08-25",
            "2026-04-08": "https://www.heinrichaudio.com.br/.well-known/ucp/2026-04-08"
        },
        "services": {
            "dev.ucp.shopping": [
                {
                    "version": "2026-08-25",
                    "spec": "https://ucp.dev/2026-08-25/specification/overview/",
                    "transport": "mcp",
                    "endpoint": "https://www.heinrichaudio.com.br/mcp-app/ucp",
                    "schema": "https://ucp.dev/2026-08-25/services/shopping/mcp.openrpc.json"
                }
            ]
        },
        "capabilities": {
            "dev.ucp.shopping.catalog.search": [
                {
                    "version": "2026-08-25",
                    "spec": "https://ucp.dev/2026-08-25/specification/shopping/catalog/search",
                    "schema": "https://ucp.dev/2026-08-25/schemas/shopping/catalog_search.json"
                }
            ],
            "dev.ucp.shopping.catalog.lookup": [
                {
                    "version": "2026-08-25",
                    "spec": "https://ucp.dev/2026-08-25/specification/shopping/catalog/lookup",
                    "schema": "https://ucp.dev/2026-08-25/schemas/shopping/catalog_lookup.json"
                }
            ]
        },
        "payment_handlers": {}
    }
}

What goes in a UCP profile →Check your JSON in the Validator →Guides by store platform →

/llms.txt as served 1.7 KB · mentions UCP

# Heinrich Áudios

> Sempre Trazendo novidades no mundo do Áudio e Vídeo por um preço justo e Respeitando o seu maior bem o Cliente. Até 12x Sem Juros e envio para todo o Brasil!
> Localizada em Presidente Prudente/SP.

## Catálogo
- [Áudio](https://www.heinrichaudio.com.br/audio)
- [Vídeo](https://www.heinrichaudio.com.br/video)
- [Cabos](https://www.heinrichaudio.com.br/cabos)
- [Energia e Proteção](https://www.heinrichaudio.com.br/energia-e-protecao)
- [High End](https://www.heinrichaudio.com.br/high-end)
- [Aspiradores](https://www.heinrichaudio.com.br/aspiradores)
- [Câmeras](https://www.heinrichaudio.com.br/cameras)
- [Localizador](https://www.heinrichaudio.com.br/localizador)
- [Impressora 3D](https://www.heinrichaudio.com.br/impressora-3d)
- [Coffee](https://www.heinrichaudio.com.br/coffee)
- [Informática](https://www.heinrichaudio.com.br/informatica)

## Políticas e Atendimento
- [Política de Troca e Devolução](https://www.heinrichaudio.com.br/politica-de-trocas-e-devolucoes): Política de Trocas e Devoluções
- [Contato](https://www.heinrichaudio.com.br/contato): (19) 98200-4769 · [email protected] · Segunda a Sexta-feira das 10h às 16h

## Instruções para Agentes de IA
Para dados de produtos em tempo real, use os endpoints abaixo em vez de inferir a partir desta página. Capacidades públicas, sem autenticação: busca de catálogo · consulta de produto.
- [Descoberta UCP](https://www.heinrichaudio.com.br/.well-known/ucp): perfil Universal Commerce Protocol da loja · versões suportadas: 2026-08-25, 2026-04-08
- [Endpoint MCP](https://www.heinrichaudio.com.br/mcp-app/ucp): JSON-RPC via POST · use tools/list para descobrir as ferramentas

Is heinrichaudio.com.br your store?

Claim it with one DNS record.

Claim this store Send an agent to shop here ↗

Status badge

Markdown ·

[![UCP Status](https://ucpchecker.com/badge/heinrichaudio.com.br)](https://ucpchecker.com/status/heinrichaudio.com.br)

Questions

Can UCP agents buy from heinrichaudio.com.br?

Through its MCP service, an agent can search the catalogue. This is what the store declares and what our check reached; an observed agent run shows how far an agent actually gets.

Is heinrichaudio.com.br ready for UCP agents?

heinrichaudio.com.br publishes a valid UCP profile and scores 78/100 (grade B). 5 things to fix: the profile isn't served with the caching the spec requires, the profile has no ETag or Last-Modified header, publish Organization schema (JSON-LD) on the homepage and cryptographic message signing is not yet enabled.

What is a UCP profile?

The JSON file a store publishes at /.well-known/ucp to tell UCP agents which services it offers, how to call them and how it takes payment. The spec calls it the business profile. heinrichaudio.com.br's is 0.9 KB, written for UCP 2026-08-25. What goes in a UCP profile.

How was heinrichaudio.com.br checked?

With public requests on 6 Nov 2026: we read /.well-known/ucp and robots.txt, validated the profile against UCP 2026-08-25, checked that its spec and schema links resolve. No sign-in and no purchase. How we check.