Hostname
s4f.com.br
Last fetched
s4f.com.br resolves to 4 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.
Nutrition Label
Resolution chain
s4f.com.br resolves to 4 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 104.21.64.168 | 104.21.64.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.152.246 | 172.67.144.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 45.60.243.168 | 45.60.243.0/24 | AS19551 | INCAPSULA - Incapsula Inc | GB |
| 45.60.247.168 | 45.60.247.0/24 | AS19551 | INCAPSULA - Incapsula Inc | US |
WHOIS identity
- Registrar
- —
- Organization
- solution4fleet consultoria empresarial ltda
- Contact emails
Subdomains
17 observed subdomains of s4f.com.br.
Showing 15 of 17. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from s4f.com.br in the public web crawl.
5 sites linked to from this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
4 SPF mechanisms authorising senders for s4f.com.br.
| Mechanism | Target |
|---|---|
| SPF_A | s4f.com.br |
| SPF_INCLUDE | sendgrid.net |
| SPF_INCLUDE | spf.brevo.com |
| SPF_IP | 108.181.92.74 |
Related pages
Pivot deeper into the graph from s4f.com.br.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "s4f.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.