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Hostname

opera.blue

Last fetched

opera.blue resolves to 1 IPv4 address operated by AS131965 in JP. WHOIS lists iana:49 as the registrar.

Nutrition Label

WHISPER CANON · opera.blueRouting diversity1.5/10Peering density2.4/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint5.2/10canon.whisper.security/host/opera.blue

Resolution chain

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

IPPrefixASNOperatorCountry
183.90.237.143183.90.224.0/20AS131965—JP

WHOIS identity

Registrar
iana:49
Organization
whois privacy protection service by onamae.com
Contact emails

Subdomains

5 observed subdomains of opera.blue.

Subdomain
kyoto.opera.blue
mta-sts.opera.blue
nurse.opera.blue
phc.opera.blue
www.opera.blue

Web-graph footprint

Distinct hostnames that link to or from opera.blue in the public web crawl.

17 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

  • opera.blue

SPF policy

4 SPF mechanisms authorising senders for opera.blue.

MechanismTarget
SPF_Aopera.blue
SPF_Asv7302.xserver.jp
SPF_INCLUDEspf.sender.xserver.jp
SPF_MXopera.blue

Related pages

Pivot deeper into the graph from opera.blue.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "opera.blue"})-[: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.