esn.de on Whisper Internet Directory

Nutrition Label

Resolution chain

esn.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
136.243.160.53	136.243.0.0/16	AS24940	—	DE

WHOIS identity

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

Subdomains

8 observed subdomains of esn.de.

Subdomain
gsa-merseburg.esn.de
kundentag.esn.de
mailsrv.esn.de
schulung.esn.de
tsm.esn.de
umfrage.esn.de
www.esn.de

Showing 7 of 8. View all subdomains →

Web-graph footprint

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

101 sites link to this hostname.

59 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mail.esn-gruppe.de

SPF policy

5 SPF mechanisms authorising senders for esn.de.

Mechanism	Target
SPF_INCLUDE	spf.crsend.com
SPF_INCLUDE	spf.protection.outlook.com
SPF_IP	212.51.23.39
SPF_IP	212.51.25.202
SPF_MX	indivsurvey.de

Related pages

Pivot deeper into the graph from esn.de.

Cypher and MCP

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

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