Hostname

21dx.de

Last fetched Sun, 14 Jun 2026 04:44:13 GMT

21dx.de appears in WhisperGraph with partial WHOIS records but no current public IPv4 resolution.

Nutrition Label

Resolution chain

21dx.de has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.

WHOIS identity

No WHOIS records are currently associated with 21dx.de in WhisperGraph.

Subdomains

52 observed subdomains of 21dx.de.

Subdomain
3bood89.21dx.de
afancifultwist.21dx.de
affine.21dx.de
archons11.21dx.de
aton.21dx.de
auto.21dx.de
blair.21dx.de
bosanova.21dx.de
chat.21dx.de
clerc.21dx.de
conf.21dx.de
cool.21dx.de
correu.21dx.de
dunbar.21dx.de
erp-b.21dx.de
erp.21dx.de
erp2.21dx.de
ex02.21dx.de
ext.21dx.de
flask.21dx.de
freetvsports.21dx.de
gamgee.21dx.de
grist.21dx.de
hamburg.21dx.de
hpspdnew.21dx.de

Showing 25 of 52. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from 21dx.de in the public web crawl.

15 sites link to this hostname.

29 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

21dx-de.mail.protection.outlook.com

SPF policy

2 SPF mechanisms authorising senders for 21dx.de.

Mechanism	Target
SPF_INCLUDE	emaileuc.freshservice.com
SPF_INCLUDE	spf.protection.outlook.com

Pivot deeper into the graph from 21dx.de.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "21dx.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.