Hostname

esr.ch

Last fetched Thu, 28 May 2026 10:46:30 GMT

esr.ch appears in WhisperGraph with partial WHOIS records but no current public IPv4 resolution.

Nutrition Label

Resolution chain

esr.ch has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.

WHOIS identity

Registrar: —
Organization: barras dominique
Contact emails: —

Subdomains

5 observed subdomains of esr.ch.

Subdomain
cloud.esr.ch
www.esr.ch
rcp.esr.ch
pop3.esr.ch
ftp.esr.ch

Web-graph footprint

Distinct hostnames that link to or from esr.ch in the public web crawl.

23 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

2 SPF mechanisms authorising senders for esr.ch.

Mechanism	Target
SPF_INCLUDE	netplus.ch
SPF_INCLUDE	vsnet.ch

Pivot deeper into the graph from esr.ch.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "esr.ch"})-[: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.