UCP Checker
Check a store
UCP status report

adecarrolamentos.com.br

Verified

adecarrolamentos.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 405 msrelease 2026-08-25

Changed something? Run a live check now.
UCP Score 78/100 grade B · nearly there To fix 4 1 breaks the spec
Passed 10 checks
Checked 6 Nov 03:22 UTC · signed public requests

Findings

10 passed · 4 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.
OK
HTTPS
https
Profile URL uses https://
https
OK
UCP profile reachable
/.well-known/ucp
HTTP 200
/.well-known/ucp
OK
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
OK
Profile passes schema validation
ucp
No structural errors
ucp
OK
Protocol version present and well-formed
ucp.version
Version: 2026-08-25
ucp.version
Services
OK
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
OK
llms.txt
/llms.txt
Found at /llms.txt
/llms.txt
OK
sitemap.xml
/sitemap.xml
Found at /sitemap.xml
/sitemap.xml
OK
Open Graph tags
og: meta
og:title and og:type/url present
og: meta
OK
Mobile viewport meta
meta viewport
<meta name="viewport"> present
meta viewport
Check trace

How adecarrolamentos.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
8 requests over 8 connections · 3.25 s at the store + 2.73 s network · signed requests · How it fetches ›
  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
    Declared
  5. 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
  • read from profileActing for the buyernot declared
  • read from profileIn the buyer's browsernot declared
  • not calledCalling its servicesMCP · declared · 0 tools
  • read from profileSending to the websitenot declared
  • Outside UCPhomepage · /llms.txt
Open
01 · Finding the profile5 requests
Served at /.well-known/ucp with 200 OK, 941 B. 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 profile5 requests · 2 × certificate refused: hostname mismatch · 2 × 200 OK · no response (curl 60 PEER_FAILED_VERIFICATION)3,500 ms
GET /robots.txt — hostname mismatch curl 60 PEER_FAILED_VERIFICATION 255 ms

We did not trust the certificate (hostname mismatch).

  • DNS 0 ms
  • Connect 123 ms
  • Wait 0 ms
  • Download 255 ms
URL
https://adecarrolamentos.com.br/robots.txt
Server
35.199.87.240
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)
GET /.well-known/ucp — hostname mismatch curl 60 PEER_FAILED_VERIFICATION 274 ms

We did not trust the certificate (hostname mismatch).

  • DNS 0 ms
  • Connect 121 ms
  • Wait 0 ms
  • Download 274 ms
URL
https://adecarrolamentos.com.br/.well-known/ucp
Server
35.199.87.240
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)
GET www.adecarrolamentos.com.br/robots.txt 200 OK 11.7 KB · text/plain 172 ms

Answered.

  • DNS 0 ms
  • Connect 6 ms
  • TLS 161 ms
  • Wait 4 ms
  • Download 0 ms
URL
https://www.adecarrolamentos.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.adecarrolamentos.com.br/.well-known/ucp 200 OK 941 B · application/json 405 ms

Answered.

  • DNS 0 ms
  • Connect 3 ms
  • TLS 161 ms
  • Wait 241 ms
  • Download 0 ms
URL
https://www.adecarrolamentos.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 /.well-known/ucp — no response curl 60 PEER_FAILED_VERIFICATION 248 ms

No answer (curl 60).

  • DNS 0 ms
  • Connect 120 ms
  • Wait 0 ms
  • Download 248 ms
URL
https://adecarrolamentos.com.br/.well-known/ucp
Server
35.199.87.240
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)
Outside UCP · its other files3 requests · 3 × 200 OK1,940 ms
GET www.adecarrolamentos.com.br/llms.txt 200 OK 985 B · text/plain 956 ms

Answered.

  • DNS 0 ms
  • Connect 176 ms
  • TLS 501 ms
  • Wait 278 ms
  • Download 0 ms
URL
https://www.adecarrolamentos.com.br/llms.txt
Server
179.191.177.41
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.adecarrolamentos.com.br/sitemap.xml 200 OK 254 B · application/xml 1,367 ms

Answered.

  • DNS 0 ms
  • Connect 300 ms
  • TLS 382 ms
  • Wait 684 ms
  • Download 0 ms
URL
https://www.adecarrolamentos.com.br/sitemap.xml
Server
179.191.177.41
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
GET www.adecarrolamentos.com.br/ 200 OK 245.4 KB · text/html 1,936 ms

Answered.

  • DNS 0 ms
  • Connect 8 ms
  • TLS 662 ms
  • Wait 511 ms
  • Download 754 ms
URL
https://www.adecarrolamentos.com.br/
Server
179.191.177.41
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
  1. 01 PROFILEValid against the 2026-08-25 schema; no keys published

How agents reach this store. adecarrolamentos.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.adecarrolamentos.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 941 B as served · 37 lines 
{
    "ucp": {
        "version": "2026-08-25",
        "supported_versions": {
            "2026-08-25": "https://www.adecarrolamentos.com.br/.well-known/ucp/2026-08-25",
            "2026-04-08": "https://www.adecarrolamentos.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.adecarrolamentos.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 984 B · mentions UCP 
# Adecar Rolamentos

## Catálogo
- [AUTOMOTIVO](https://www.adecarrolamentos.com.br/automotivo-): AUTOMOTIVO
- [AGRÍCOLA](https://www.adecarrolamentos.com.br/agricola): AGRÍCOLA
- [INDUSTRIAL](https://www.adecarrolamentos.com.br/industrial): INDUSTRIAL

## Políticas e Atendimento
- [Contato](https://www.adecarrolamentos.com.br/contato): (45) 3225-2247 · [email protected] · Atendimento de segunda a sexta as 07:52 às 12:00, 13:20 às 18:00

## 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.adecarrolamentos.com.br/.well-known/ucp): perfil Universal Commerce Protocol da loja · versões suportadas: 2026-08-25, 2026-04-08
- [Endpoint MCP](https://www.adecarrolamentos.com.br/mcp-app/ucp): JSON-RPC via POST · use tools/list para descobrir as ferramentas
Is adecarrolamentos.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/adecarrolamentos.com.br)](https://ucpchecker.com/status/adecarrolamentos.com.br)

Questions

Can UCP agents buy from adecarrolamentos.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 adecarrolamentos.com.br ready for UCP agents?
adecarrolamentos.com.br publishes a valid UCP profile and scores 78/100 (grade B). 4 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. adecarrolamentos.com.br's is 0.9 KB, written for UCP 2026-08-25. What goes in a UCP profile.
How was adecarrolamentos.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.