Hostname
4rf.com
Last fetched
4rf.com resolves to 1 IPv4 address operated by IDNIC-UINSUSKA-AS-ID Universitas Islam Negeri Suska Riau in US. WHOIS lists iana:146 as the registrar.
Nutrition Label
Resolution chain
4rf.com resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 72.167.39.123 | 72.167.32.0/20 | AS398101 | IDNIC-UINSUSKA-AS-ID Universitas Islam Negeri Suska Riau | US |
WHOIS identity
- Registrar
- iana:146
- Organization
- 4rf
- Contact emails
Subdomains
15 observed subdomains of 4rf.com.
Web-graph footprint
Distinct hostnames that link to or from 4rf.com in the public web crawl.
1,340 sites link to this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
6 SPF mechanisms authorising senders for 4rf.com.
| Mechanism | Target |
|---|---|
| SPF_A | 4rf.com |
| SPF_INCLUDE | _spf.salesforce.com |
| SPF_INCLUDE | secureserver.net |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 202.27.34.40 |
| SPF_MX | 4rf.com |
Related pages
Pivot deeper into the graph from 4rf.com.
- IP · 72.167.39.123
- ASN · AS398101IDNIC-UINSUSKA-AS-ID Universitas Islam Negeri Suska Riau
- Registrar · iana:146
- Country · US
- Email · administrator@4rf.com
- TLD · .com
- Browse hostnames · 4r…
- Glossary · What is a hostname?
- Whisper Internet Directory — home
- Live MOAS conflicts feed
- Threat feed · Spamhaus DROP
- United States internet infrastructure
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "4rf.com"})-[: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.