Hostname
master.ca
Last fetched
master.ca resolves to 4 IPv4 addresses operated by MACST-SV4 - MacStadium, Inc. in CA. WHOIS lists iana:456 as the registrar.
Nutrition Label
Resolution chain
master.ca 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 |
|---|---|---|---|---|
| 151.101.1.154 | 151.101.0.0/22 | AS54113 | MACST-SV4 - MacStadium, Inc. | CA |
| 151.101.129.154 | 151.101.128.0/22 | AS54113 | MACST-SV4 - MacStadium, Inc. | CA |
| 151.101.193.154 | 151.101.192.0/22 | AS54113 | MACST-SV4 - MacStadium, Inc. | CA |
| 151.101.65.154 | 151.101.64.0/22 | AS54113 | MACST-SV4 - MacStadium, Inc. | CA |
WHOIS identity
- Registrar
- iana:456
- Organization
- le groupe master s.e.c./l.p.
- Contact emails
Subdomains
21 observed subdomains of master.ca.
Showing 20 of 21. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from master.ca in the public web crawl.
146 sites link to this hostname.
Threat posture
History
Mail and authentication
SPF policy
14 SPF mechanisms authorising senders for master.ca.
| Mechanism | Target |
|---|---|
| SPF_A | master.ca |
| SPF_INCLUDE | _spf.psm.knowbe4.com |
| SPF_INCLUDE | amazonses.com |
| SPF_INCLUDE | ca._netblocks.mimecast.com |
| SPF_INCLUDE | magentosite.cloud |
| SPF_INCLUDE | sendgrid.net |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_INCLUDE | spf.termsync.com |
| SPF_IP | 157.133.48.19/32 |
| SPF_IP | 157.133.48.20/32 |
| SPF_IP | 52.228.105.245 |
| SPF_IP | 52.228.106.137 |
| SPF_IP | 69.157.211.56/32 |
| SPF_MX | master.ca |
Related pages
Pivot deeper into the graph from master.ca.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "master.ca"})-[: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.