UCP Checker
Check a store
UCP status report

afaviamentos.com.br

Verified

afaviamentos.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 255 msrelease 2026-08-25

Changed something? Run a live check now.
UCP Score 82/100 grade B · nearly there To fix 5 1 breaks the spec
Passed 12 checks
Checked 5 Nov 15:26 UTC · signed public requests

Findings

12 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.afaviamentos.com.br; afaviamentos.com.br only redirects to it
How we decided: afaviamentos.com.br forwards its homepage to www.afaviamentos.com.br; your homepage names www.afaviamentos.com.br as its canonical address; and your UCP profile is served directly at www.afaviamentos.com.br/.well-known/ucp. An agent given afaviamentos.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 afaviamentos.com.br too if agents may use it.
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
OK
Spec & schema URLs resolve (5)
spec, schema
All 5 URLs resolved.
spec, schema
Services
OK
Transports declared
services
MCP
services
OK
MCP transport reachable
transport: mcp
tools/list returned a JSON-RPC response in 641ms
transport: mcp
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 afaviamentos.com.br answered our check

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

2 of 5 open
11 requests · 7.75 s at the store · signed requests
  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
    Open
  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
  • 1 requestCalling its servicesMCP · answered · 3 tools
  • read from profileSending to the websitenot declared
  • Outside UCPhomepage · /llms.txt
Open
01 · Finding the profile6 requests
Served at www.afaviamentos.com.br/.well-known/ucp with 200 OK, 929 B. afaviamentos.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.
Open
04 · Calling its services1 request
The MCP service answered tools/list in 641 ms, 3 tools.
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 OK4,383 ms
GET /robots.txt 301 Moved Permanently → www.afaviamentos.com.br/robots.txt 377 ms

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

  • DNS 0 ms
  • Connect 113 ms
  • TLS 151 ms
  • Wait 113 ms
  • Download 0 ms
URL
https://afaviamentos.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.afaviamentos.com.br/robots.txt
GET www.afaviamentos.com.br/robots.txt 200 OK 2.9 KB · text/plain 311 ms

Answered.

  • DNS 7 ms
  • Connect 6 ms
  • TLS 119 ms
  • Wait 177 ms
  • Download 0 ms
URL
https://www.afaviamentos.com.br/robots.txt
Server
179.191.177.33
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.afaviamentos.com.br/.well-known/ucp 395 ms

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

  • DNS 0 ms
  • Connect 113 ms
  • TLS 169 ms
  • Wait 111 ms
  • Download 0 ms
URL
https://afaviamentos.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.afaviamentos.com.br/.well-known/ucp
GET www.afaviamentos.com.br/.well-known/ucp 200 OK 929 B · application/json 422 ms

Answered.

  • DNS 0 ms
  • Connect 2 ms
  • TLS 65 ms
  • Wait 354 ms
  • Download 0 ms
URL
https://www.afaviamentos.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.afaviamentos.com.br/robots.txt 200 OK 2.9 KB · text/plain 203 ms

Answered.

  • DNS 0 ms
  • Connect 9 ms
  • TLS 182 ms
  • Wait 10 ms
  • Download 0 ms
URL
https://www.afaviamentos.com.br/robots.txt
Server
179.191.177.33
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.afaviamentos.com.br/.well-known/ucp 200 OK 929 B · application/json 255 ms

Answered.

  • DNS 0 ms
  • Connect 8 ms
  • TLS 99 ms
  • Wait 147 ms
  • Download 0 ms
URL
https://www.afaviamentos.com.br/.well-known/ucp
Server
179.191.177.33
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 OK1,677 ms
GET / 301 Moved Permanently → www.afaviamentos.com.br/ 377 ms

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

  • DNS 0 ms
  • Connect 113 ms
  • TLS 152 ms
  • Wait 111 ms
  • Download 0 ms
URL
https://afaviamentos.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.afaviamentos.com.br/
GET www.afaviamentos.com.br/ 200 OK 702.0 KB · text/html 182 ms

Answered.

  • DNS 0 ms
  • Connect 4 ms
  • TLS 158 ms
  • Wait 6 ms
  • Download 13 ms
URL
https://www.afaviamentos.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.afaviamentos.com.br/ 200 OK 702.0 KB · text/html 520 ms

Answered.

  • DNS 0 ms
  • Connect 3 ms
  • TLS 463 ms
  • Wait 35 ms
  • Download 18 ms
URL
https://www.afaviamentos.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.afaviamentos.com.br/llms.txt 200 OK 1.4 KB · text/plain 871 ms

Answered.

  • DNS 0 ms
  • Connect 112 ms
  • TLS 368 ms
  • Wait 389 ms
  • Download 0 ms
URL
https://www.afaviamentos.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.afaviamentos.com.br/sitemap.xml 200 OK 251 B · application/xml 882 ms

Answered.

  • DNS 0 ms
  • Connect 281 ms
  • TLS 208 ms
  • Wait 392 ms
  • Download 0 ms
URL
https://www.afaviamentos.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
  1. 01 PROFILEValid against the 2026-08-25 schema; no keys published

How agents reach this store. afaviamentos.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.afaviamentos.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 929 B as served · 37 lines 
{
    "ucp": {
        "version": "2026-08-25",
        "supported_versions": {
            "2026-08-25": "https://www.afaviamentos.com.br/.well-known/ucp/2026-08-25",
            "2026-04-08": "https://www.afaviamentos.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.afaviamentos.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 1.4 KB · mentions UCP 
# AF Aviamentos

> A Af Aviamentos é uma loja de tecidos, aviamentos e armarinhos no atacado e varejo em São José do Rio Preto. Encontre tudo o que precisa para costura, artesanato, bordado, pintura, crochê e trico.
> Localizada em São José do Rio Preto/SP.

## Catálogo
- [Croche e Trico](https://www.afaviamentos.com.br/croche-trico)
- [Artesanato](https://www.afaviamentos.com.br/artesanato)
- [Costura e Bordado](https://www.afaviamentos.com.br/costura-e-bordado)
- [Mesa e Banho](https://www.afaviamentos.com.br/toalhas)
- [Tecidos](https://www.afaviamentos.com.br/tecidos)
- [Especiais](https://www.afaviamentos.com.br/especial)

## Políticas e Atendimento
- [Política de Troca e Devolução](https://www.afaviamentos.com.br/regras-de-troca): Regras de troca
- [Contato](https://www.afaviamentos.com.br/contato): (17) 3211-9013 · [email protected] · De segunda a sexta das 08:00 as 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.afaviamentos.com.br/.well-known/ucp): perfil Universal Commerce Protocol da loja · versões suportadas: 2026-08-25, 2026-04-08
- [Endpoint MCP](https://www.afaviamentos.com.br/mcp-app/ucp): JSON-RPC via POST · use tools/list para descobrir as ferramentas
Is afaviamentos.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/afaviamentos.com.br)](https://ucpchecker.com/status/afaviamentos.com.br)

Questions

Can UCP agents buy from afaviamentos.com.br?
Through its MCP service, an agent can search the catalogue. The service answered our check. This is what the store declares and what our check reached; an observed agent run shows how far an agent actually gets.
Is afaviamentos.com.br ready for UCP agents?
afaviamentos.com.br publishes a valid UCP profile and scores 82/100 (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. afaviamentos.com.br's is 0.9 KB, written for UCP 2026-08-25. What goes in a UCP profile.
How was afaviamentos.com.br checked?
With public requests on 5 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, and called its MCP service. No sign-in and no purchase. How we check.