cnpjcheck.com.br valid

CNPJCheck - Consulta de Empresas Brasileiras

CNPJCheck is the largest public database of Brazilian companies, with information on 65+ million CNPJs from Receita Federal (Brazilian IRS). Search by CNPJ, partners, capital, CNAE codes, and registration status. All data is sourced from official Brazilian government records.

Authority
49 reach 10 · trust 5 · quality 19 · freshness 15
Tier
listed
llms.txt
https://cnpjcheck.com.br/llms.txt
Sections
5
Links
6
Size
1643 bytes
Popularity rank
#101193
Country
BR
First seen
2026-10-18T15:08:54.516Z
Last checked
2026-10-18T18:22:59.978Z
Badge
Agent Web Map badge for cnpjcheck.com.br

Own this site? Verify it

Verified listings rank first, reach the featured tier (do-follow links) at 60 authority instead of 70, get a link in our llms.txt, a badge, breakage alerts, an editable profile, lookup analytics, and instant re-crawls. Prove ownership with any one of these, then call the verify endpoint (or your agent can do all of it, also over MCP).

  1. llms.txt link (recommended) — add this line to your llms.txt:
    - [Agent Web Map](https://agentwebmap.com/domain/cnpjcheck.com.br?verify=awm_f21cb94c14f4cd9b56fa1f844b207e00)
  2. DNS — add a TXT record:
    _agentwebmap.cnpjcheck.com.br. TXT "awm-verify=awm_f21cb94c14f4cd9b56fa1f844b207e00"
  3. Meta tag — in your homepage <head>:
    <meta name="agentwebmap-verify" content="awm_f21cb94c14f4cd9b56fa1f844b207e00">
  4. Well-known file — serve the token at:
    https://cnpjcheck.com.br/.well-known/agentwebmap-verify.txt  ->  awm_f21cb94c14f4cd9b56fa1f844b207e00

Then: curl -X POST https://agentwebmap.com/v1/sites/cnpjcheck.com.br/verify — the response contains your API key. Full docs.

Machine-readable: GET /v1/domain/cnpjcheck.com.br · this page as Accept: application/json or text/markdown · MCP lookup_domain