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Hostname

top21.sh

Last fetched

top21.sh resolves to 1 IPv4 address operated by AS8881 in DE. WHOIS lists iana:1387 as the registrar.

Nutrition Label

WHISPER CANON · top21.shRouting diversity1.5/10Peering density9.4/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint4.6/10canon.whisper.security/host/top21.sh

Resolution chain

top21.sh resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
89.244.131.5089.244.0.0/14AS8881—DE

WHOIS identity

Registrar
iana:1387
Organization
top 21 systemhaus
Contact emails
—

Subdomains

8 observed subdomains of top21.sh.

Subdomain
git.top21.sh
ldap.top21.sh
ticket.top21.sh
timas.top21.sh
vault.top21.sh
vw.top21.sh
wiki.top21.sh
www.top21.sh

Web-graph footprint

Distinct hostnames that link to or from top21.sh in the public web crawl.

18 sites link to this hostname.

46 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for top21.sh.

MechanismTarget
SPF_REDIRECT_sfjzzyuj0.sdmarc.net

Related pages

Pivot deeper into the graph from top21.sh.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "top21.sh"})-[: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.