Hostname
mastertech.com.br
Last fetched
mastertech.com.br resolves to 4 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in BR.
Nutrition Label
Resolution chain
mastertech.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 |
|---|---|---|---|---|
| 18.228.55.102 | 18.228.0.0/16 | AS16509 | AMAZON-02 - Amazon.com, Inc. | BR |
| 18.229.116.185 | 18.229.0.0/16 | AS16509 | AMAZON-02 - Amazon.com, Inc. | BR |
| 18.229.168.149 | 18.229.0.0/16 | AS16509 | AMAZON-02 - Amazon.com, Inc. | BR |
| 18.229.3.243 | 18.229.0.0/16 | AS16509 | AMAZON-02 - Amazon.com, Inc. | BR |
WHOIS identity
- Registrar
- —
- Organization
- mastertech servicos de treinamento profi
- Contact emails
Subdomains
61 observed subdomains of mastertech.com.br.
Showing 25 of 61. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from mastertech.com.br in the public web crawl.
36 sites link to this hostname.
1 site linked to from this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
3 SPF mechanisms authorising senders for mastertech.com.br.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | _spf.rdstation.com.br |
| SPF_INCLUDE | api-mail.com |
Related pages
Pivot deeper into the graph from mastertech.com.br.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "mastertech.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.