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Hostname

cirta.us

Last fetched

cirta.us resolves to 1 IPv4 address operated by EXPEDIENT - Expedient in US. WHOIS lists iana:146 as the registrar.

Nutrition Label

WHISPER CANON · cirta.usRouting diversity1.5/10Peering density6.3/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint3.2/10canon.whisper.security/host/cirta.us

Resolution chain

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

IPPrefixASNOperatorCountry
216.37.42.67216.37.0.0/18AS17054EXPEDIENT - ExpedientUS

WHOIS identity

Registrar
iana:146
Organization
andrew mcgee
Contact emails

Subdomains

2 observed subdomains of cirta.us.

Subdomain
pay.cirta.us
www.cirta.us

Web-graph footprint

Distinct hostnames that link to or from cirta.us in the public web crawl.

58 sites link to this hostname.

167 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for cirta.us.

MechanismTarget
SPF_INCLUDEspf.protection.outlook.com
SPF_INCLUDEspf.serverdata.net
SPF_IP24.123.217.58

Related pages

Pivot deeper into the graph from cirta.us.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "cirta.us"})-[: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.