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Hostname

open9.de

Last fetched

open9.de resolves to 1 IPv4 address operated by AS15817 in DE.

Nutrition Label

WHISPER CANON · open9.deRouting diversity1.5/10Peering density1.9/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint4.0/10canon.whisper.security/host/open9.de

Resolution chain

open9.de resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
45.144.186.4145.144.184.0/22AS15817—DE

WHOIS identity

No WHOIS records are currently associated with open9.de in WhisperGraph.

Subdomains

2 observed subdomains of open9.de.

Subdomain
remote.open9.de
www.open9.de

Web-graph footprint

Distinct hostnames that link to or from open9.de in the public web crawl.

53 sites link to this hostname.

145 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

6 SPF mechanisms authorising senders for open9.de.

MechanismTarget
SPF_Amailservice.pccaddie.com
SPF_Aopen9.de
SPF_INCLUDEagenturserver.de
SPF_INCLUDEspf.hornetsecurity.com
SPF_INCLUDEspf.protection.outlook.com
SPF_MXopen9.de

Related pages

Pivot deeper into the graph from open9.de.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "open9.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.