UCP Checker
UCP status report

fslfarma.com

Verified

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

TrayMCPHTTP 200 in 871 msrelease 2026-08-25

Changed something? Run a live check now.
UCP Score 78/100 grade B · nearly there To fix 5 1 breaks the spec
Passed 10 checks
Checked 6 Nov 07:38 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.fslfarma.com; fslfarma.com only redirects to it
How we decided: fslfarma.com forwards its homepage to www.fslfarma.com; your homepage names www.fslfarma.com as its canonical address; and your UCP profile is served directly at www.fslfarma.com/.well-known/ucp. An agent given fslfarma.com instead gets a redirect, and the spec tells agents not to follow one, so it stops there. Serve /.well-known/ucp directly on fslfarma.com 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
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 fslfarma.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
11 requests over 11 connections · 2.13 s at the store + 3.23 s network · signed requests · How it fetches ›
  1. Finding the profile
    Open
  2. Acting for the buyer
    Not offered
  3. In the buyer's browser
    Not offered
  4. Calling its services
    Declared
  5. 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 · 3 tools
  • read from profileSending to the websitenot declared
  • Outside UCPhomepage · /llms.txt
Open
01 · Finding the profile6 requests
Served at www.fslfarma.com/.well-known/ucp with 200 OK, 908 B. fslfarma.com 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 OK6,776 ms
GET /robots.txt 301 Moved Permanently → www.fslfarma.com/robots.txt 433 ms

Redirected to https://www.fslfarma.com/robots.txt.

  • DNS 0 ms
  • Connect 112 ms
  • TLS 207 ms
  • Wait 112 ms
  • Download 0 ms
URL
https://fslfarma.com/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.fslfarma.com/robots.txt
GET www.fslfarma.com/robots.txt 200 OK 11.6 KB · text/plain 159 ms

Answered.

  • DNS 9 ms
  • Connect 56 ms
  • TLS 88 ms
  • Wait 4 ms
  • Download 0 ms
URL
https://www.fslfarma.com/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.fslfarma.com/.well-known/ucp 510 ms

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

  • DNS 0 ms
  • Connect 114 ms
  • TLS 277 ms
  • Wait 118 ms
  • Download 0 ms
URL
https://fslfarma.com/.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.fslfarma.com/.well-known/ucp
GET www.fslfarma.com/.well-known/ucp 200 OK 908 B · application/json 348 ms

Answered.

  • DNS 0 ms
  • Connect 8 ms
  • TLS 213 ms
  • Wait 125 ms
  • Download 0 ms
URL
https://www.fslfarma.com/.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.fslfarma.com/robots.txt 200 OK 11.6 KB · text/plain 182 ms

Answered.

  • DNS 0 ms
  • Connect 5 ms
  • TLS 172 ms
  • Wait 4 ms
  • Download 0 ms
URL
https://www.fslfarma.com/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.fslfarma.com/.well-known/ucp 200 OK 908 B · application/json 871 ms

Answered.

  • DNS 0 ms
  • Connect 7 ms
  • TLS 229 ms
  • Wait 633 ms
  • Download 0 ms
URL
https://www.fslfarma.com/.well-known/ucp
Server
179.191.177.17
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 OK2,228 ms
GET / 301 Moved Permanently → www.fslfarma.com/ 377 ms

Redirected to https://www.fslfarma.com/.

  • DNS 0 ms
  • Connect 111 ms
  • TLS 150 ms
  • Wait 113 ms
  • Download 1 ms
URL
https://fslfarma.com/
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.fslfarma.com/
GET www.fslfarma.com/ 200 OK 863.9 KB · text/html 1,006 ms

Answered.

  • DNS 0 ms
  • Connect 1 ms
  • TLS 175 ms
  • Wait 362 ms
  • Download 466 ms
URL
https://www.fslfarma.com/
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.fslfarma.com/sitemap.xml 200 OK 243 B · application/xml 440 ms

Answered.

  • DNS 0 ms
  • Connect 1 ms
  • TLS 415 ms
  • Wait 23 ms
  • Download 0 ms
URL
https://www.fslfarma.com/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
GET www.fslfarma.com/ 200 OK 863.9 KB · text/html 462 ms

Answered.

  • DNS 0 ms
  • Connect 198 ms
  • TLS 233 ms
  • Wait 9 ms
  • Download 20 ms
URL
https://www.fslfarma.com/
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.fslfarma.com/llms.txt 200 OK 2.5 KB · text/plain 573 ms

Answered.

  • DNS 0 ms
  • Connect 264 ms
  • TLS 175 ms
  • Wait 132 ms
  • Download 0 ms
URL
https://www.fslfarma.com/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
  1. 01 PROFILEValid against the 2026-08-25 schema; no keys published

How agents reach this store. fslfarma.com'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.fslfarma.com/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 908 B as served · 37 lines
{
    "ucp": {
        "version": "2026-08-25",
        "supported_versions": {
            "2026-08-25": "https://www.fslfarma.com/.well-known/ucp/2026-08-25",
            "2026-04-08": "https://www.fslfarma.com/.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.fslfarma.com/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": {}
    }
}
/llms.txt as served 2.5 KB · mentions UCP
# FSL FARMA

> Farmácia de manipulação online desde 2003. Fórmulas manipuladas personalizadas, suplementos veganos e frete grátis para todo o Brasil. Parcelamento em até 6x!
> Localizada em IPANEMA/MG.

## Catálogo
- [POR OBJETIVO](https://www.fslfarma.com/categorias): Suplementos e produtos para diversas finalidades. Compre na FSL Farma.
- [SUPLEMENTOS](https://www.fslfarma.com/suplementos): Seleção de suplementos para o dia a dia. Compre na FSL Farma.
- [THERAPEUTICA](https://www.fslfarma.com/therapeuticaelements): Linha de suplementos Therapeutica. Compre na FSL Farma.
- [DESTAQUES](https://www.fslfarma.com/destaques): Suplementos e produtos em destaque na loja. Compre na FSL Farma.
- [SELEÇÃO FSL](https://www.fslfarma.com/recomendados): Suplementos e produtos recomendados. Compre na FSL Farma.
- [EQUILÍBRIO](https://www.fslfarma.com/equilibrio): Suplementos e produtos para o dia a dia. Compre na FSL Farma.
- [PROBIÓTICOS](https://www.fslfarma.com/probiotico): Probióticos em cápsulas. Compre na FSL Farma.
- [BEM-ESTAR](https://www.fslfarma.com/bemestar): Produtos e suplementos para bem-estar: chás, florais e óleos essenciais. Compre na FSL Farma.
- [BELEZA](https://www.fslfarma.com/belezas): Produtos e cosméticos para cuidados com pele, cabelo e corpo. Compre na FSL Farma.
- [FSL NUTRI](https://www.fslfarma.com/fsl-nutri-): Linha de suplementos nutricionais FSL Nutri. Compre na FSL Farma.
- [OFERTAS](https://www.fslfarma.com/ofertas)
- [Banner1](https://www.fslfarma.com/banner1)
- [Banner2](https://www.fslfarma.com/banner2)
- [Banner3](https://www.fslfarma.com/banner3)
- [Banner4](https://www.fslfarma.com/banner4)
- [Banner5](https://www.fslfarma.com/banner5)
- [Banner6](https://www.fslfarma.com/banner6)

## Políticas e Atendimento
- [Política de Troca e Devolução](https://www.fslfarma.com/politica-de-devolucao-e-reembolso): Política de Devolução e Reembolso
- [Contato](https://www.fslfarma.com/contato): (33) 99847-5522 · [email protected] · Segunda a sexta: 8:00 às 17:00, Sábado 8:00 às 11:00 hs.

## 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.fslfarma.com/.well-known/ucp): perfil Universal Commerce Protocol da loja · versões suportadas: 2026-08-25, 2026-04-08
- [Endpoint MCP](https://www.fslfarma.com/mcp-app/ucp): JSON-RPC via POST · use tools/list para descobrir as ferramentas
Is fslfarma.com your store?
Claim it with one DNS record.

Status badge

Markdown ·
[![UCP Status](https://ucpchecker.com/badge/fslfarma.com)](https://ucpchecker.com/status/fslfarma.com)

Questions

Can UCP agents buy from fslfarma.com?
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 fslfarma.com ready for UCP agents?
fslfarma.com 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. fslfarma.com's is 0.9 KB, written for UCP 2026-08-25. What goes in a UCP profile.
How was fslfarma.com 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.