Hostname

esu.eu

Last fetched Thu, 16 Jul 2026 01:50:23 GMT

esu.eu resolves to 4 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:strato ag as the registrar.

Nutrition Label

Resolution chain

esu.eu 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
104.21.89.97	104.21.80.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.188.162	172.67.176.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
188.114.96.3	188.114.96.0/24	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
188.114.97.3	188.114.97.0/24	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

Registrar: registrar:strato ag
Organization: —
Contact emails: —

Subdomains

11 observed subdomains of esu.eu.

Subdomain
autodiscover.esu.eu
esude.esu.eu
faraday.esu.eu
filetransfer.esu.eu
hostmaster.esu.eu
newton.esu.eu
projects.esu.eu
remote.esu.eu
reversedns.esu.eu
wildcard.esu.eu
www.esu.eu

Web-graph footprint

Distinct hostnames that link to or from esu.eu in the public web crawl.

423 sites link to this hostname.

55 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

newton.esu.eu

SPF policy

6 SPF mechanisms authorising senders for esu.eu.

Mechanism	Target
SPF_A	esu.eu
SPF_A	newton.esu.eu
SPF_IP	109.235.229.70
SPF_IP	2a02:778:0:3d:25f7:b466:6538:1047
SPF_IP	81.169.165.22
SPF_MX	esu.eu

Pivot deeper into the graph from esu.eu.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "esu.eu"})-[: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.