Hostname

rjfa.de

Last fetched Thu, 09 Jul 2026 12:10:47 GMT

rjfa.de resolves to 1 IPv4 address operated by AS21499 in DE.

Nutrition Label

Resolution chain

rjfa.de 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
92.205.50.237	92.205.48.0/20	AS21499	—	DE

WHOIS identity

No WHOIS records are currently associated with rjfa.de in WhisperGraph.

Subdomains

1 observed subdomain of rjfa.de.

Subdomain
www.rjfa.de

Web-graph footprint

Distinct hostnames that link to or from rjfa.de in the public web crawl.

8 sites link to this hostname.

9 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mxlb.ispgateway.de

SPF policy

3 SPF mechanisms authorising senders for rjfa.de.

Mechanism	Target
SPF_A	rjfa.de
SPF_INCLUDE	ispgateway.de
SPF_MX	rjfa.de

Pivot deeper into the graph from rjfa.de.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "rjfa.de"})-[: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 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.