Skip to content

Hostname

echo21.de

Last fetched

echo21.de resolves to 1 IPv4 address operated by AS24940 in DE.

Nutrition Label

WHISPER CANON · echo21.deRouting diversity1.5/10Peering density7.6/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency0.0/10Resolver footprint4.0/10canon.whisper.security/host/echo21.de

Resolution chain

echo21.de resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
148.251.171.224148.251.0.0/16AS24940—DE

WHOIS identity

No WHOIS records are currently associated with echo21.de in WhisperGraph.

Subdomains

9 observed subdomains of echo21.de.

Subdomain
die-kleine-firma.echo21.de
etzenricht.echo21.de
kohlberg.echo21.de
mail.echo21.de
mx0.echo21.de
test.echo21.de
vgweiherhammer.echo21.de
weiherhammer.echo21.de
www.echo21.de

Web-graph footprint

Distinct hostnames that link to or from echo21.de in the public web crawl.

13 sites link to this hostname.

21 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

2 SPF mechanisms authorising senders for echo21.de.

MechanismTarget
SPF_Aecho21.de
SPF_MXecho21.de

Related pages

Pivot deeper into the graph from echo21.de.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "echo21.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.