Hostname
b2bstack.com.br
Last fetched
b2bstack.com.br resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.
Nutrition Label
Resolution chain
b2bstack.com.br resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 104.21.43.4 | 104.21.32.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.215.11 | 172.67.208.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
- Registrar
- —
- Organization
- eduardo silveira muller
- Contact emails
Subdomains
25 observed subdomains of b2bstack.com.br.
Web-graph footprint
Distinct hostnames that link to or from b2bstack.com.br in the public web crawl.
193 sites link to this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
7 SPF mechanisms authorising senders for b2bstack.com.br.
| Mechanism | Target |
|---|---|
| SPF_A | b2bstack.com.br |
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | emsd1.com |
| SPF_INCLUDE | sparkpostmail.com |
| SPF_INCLUDE | spf-ll.xmailer.com.br |
| SPF_INCLUDE | zcsend.net |
| SPF_MX | b2bstack.com.br |
Related pages
Pivot deeper into the graph from b2bstack.com.br.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "b2bstack.com.br"})-[:RESOLVES_TO]->(ip:IPV4)
-[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)
-[:ROUTES]->(asn:ASN)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, asn.name AS asn, n.name AS operator
LIMIT 20Or query Whisper from your own LLM workflow via the Whisper MCP server.