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Hostname

defn.io

Last fetched

defn.io resolves to 104.21.67.229, announced in 104.21.64.0/20 by CLOUDFLARENET - Cloudflare, Inc. in CA. defn.io 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 · defn.ioRouting diversity1.5/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint3.2/10canon.whisper.security/host/defn.io

Resolution chain

IPv6 resolution

Attribution

Cloudflare

cdn · ORIGIN_AS, CDN

WHOIS identity

Registrar
iana:1910
Registrant organisation
cleartype srl

Subdomains

Subdomain
anom.defn.io
ci.defn.io
deta.defn.io
dramatiq.defn.io
koyo.defn.io
mail.defn.io
media.defn.io
remember.defn.io
ruckus.defn.io
try-racket.defn.io
vcs.defn.io
www.defn.io

Showing 12 of 12 subdomains (12 per page).

Web-graph footprint

Sampled `LINKS_TO` edges. The hyperlink layer is a pilot sample, not a web-scale crawl, so these are illustrative.

Sample inbound links

Sample outbound links

Mail and authentication

Nameservers

  • aragorn.ns.cloudflare.com
  • kami.ns.cloudflare.com

MX records

  • in1-smtp.messagingengine.com
  • in2-smtp.messagingengine.com

SPF policy

  • include: spf.messagingengine.com

Threat-feed evidence

History

Related pages

Pivot from defn.io 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: "defn.io"})-[: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.