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Hostname

c21agent.hr

Last fetched

c21agent.hr resolves to 152.89.235.50, announced in 152.89.235.0/24 by OPTIMUS-AS - Optimus IT d.o.o. in SI. c21agent.hr is not listed on any threat feed indexed by WhisperGraph; reconciled level NONE.

Threat posture

0threat score (procedure-native scale)

NONE

No threats observed.

Threat feeds listing this
0
Verdict coverage
known-clean

Nutrition Label

WHISPER CANON · c21agent.hrRouting diversity1.5/10Peering density1.9/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency6.7/10Resolver footprint8.0/10canon.whisper.security/host/c21agent.hr

Resolution chain

IPv6 resolution

No AAAA record for c21agent.hr is recorded in WhisperGraph.

Attribution

optimus it

ORIGIN_AS

WHOIS identity

Registrar
registrar:webtasy, d.o.o.
Registrant organisation
cslo nepremičnine, d.o.o.
Contact emails
domene@dhh.si, info@c21.si

Subdomains

Subdomain
mail.c21agent.hr
www.c21agent.hr

Showing 2 of 2 subdomains (2 per page).

Mail and authentication

Nameservers

  • a.root-servers.net
  • b.root-servers.net
  • c.root-servers.net
  • d.root-servers.net
  • e.root-servers.net
  • f.root-servers.net
  • g.root-servers.net
  • h.root-servers.net
  • i.root-servers.net
  • j.root-servers.net
  • k.root-servers.net
  • l.root-servers.net
  • m.root-servers.net
  • rns19.neoserv.si
  • rns20.neoserv.si

MX records

  • mail.c21agent.hr

SPF policy

  • a: c21agent.hr
  • mx: c21agent.hr
  • include: _spf.mail-neoserv.si
  • ip: 152.89.235.50
  • ip: 152.89.235.54

Threat-feed evidence

History

Related pages

Pivot from c21agent.hr into the addresses, networks and registries it depends on.

Cypher and MCP

Reproduce this hostname's resolution chain against graph.whisper.security:

MATCH (h:HOSTNAME {name: "c21agent.hr"})-[:RESOLVES_TO]->(ip:IPV4)
      -[:ANNOUNCED_BY]->(ap:ANNOUNCED_PREFIX)-[:ROUTES]->(a:ASN)
OPTIONAL MATCH (a)-[:HAS_NAME]->(n:ASN_NAME)
RETURN ip.name AS ip, ap.name AS prefix, a.name AS asn, n.name AS network
LIMIT 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.