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Hostname

rcs.jp

Last fetched

rcs.jp resolves to 49.212.233.150, announced in 49.212.233.0/24 by SAKURA-A - SAKURA Internet Inc. in JP. rcs.jp 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 · rcs.jpRouting diversity1.5/10Peering density1.9/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency6.7/10Resolver footprint3.2/10canon.whisper.security/host/rcs.jp

Resolution chain

IPv6 resolution

No AAAA record for rcs.jp is recorded in WhisperGraph.

Attribution

sakura

ORIGIN_AS

WHOIS identity

Registrant organisation
rcstaff corporation
Contact emails
soumu@rcs.jp

Subdomains

Subdomain
diginavi.rcs.jp
file.rcs.jp
mail.rcs.jp
recruit.rcs.jp
relay.rcs.jp
smartdiginavi.rcs.jp
ss.rcs.jp
sslmail.rcs.jp
www.rcs.jp

Showing 9 of 9 subdomains (9 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

  • ns1.do-reg.jp
  • ns2.do-reg.jp

MX records

  • mail.rcs.jp

SPF policy

  • ip: 112.78.202.174
  • ip: 153.142.41.208
  • ip: 183.181.88.85
  • ip: 183.90.240.50
  • ip: 49.212.233.150
  • ip: 49.212.233.22
  • ip: 54.92.32.150

Threat-feed evidence

History

Related pages

Pivot from rcs.jp 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: "rcs.jp"})-[: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.