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Hostname

threstir.is

Last fetched

threstir.is is a registered hostname under the .is top-level domain. Live infrastructure data is temporarily unavailable; refresh in a moment.

Nutrition Label

WHISPER CANON · threstir.isRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/threstir.is

Resolution chain

Resolution chain data is temporarily unavailable. Refresh in a moment to retry.

WHOIS identity

No WHOIS records are currently associated with threstir.is in WhisperGraph.

Subdomains

1 observed subdomain of threstir.is.

Subdomain
www.threstir.is

Web-graph footprint

Distinct hostnames that link to or from threstir.is in the public web crawl.

20 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

14 SPF mechanisms authorising senders for threstir.is.

MechanismTarget
SPF_Aspamassassin.skyrr.is
SPF_INCLUDEspf.hysing.is
SPF_INCLUDEspf.hysingar.is
SPF_INCLUDEspf.mail.hysingar.is
SPF_IP193.4.129.10
SPF_IP193.4.129.73
SPF_IP212.30.229.12
SPF_IP212.30.229.38
SPF_IP212.30.230.100/32
SPF_IP212.30.230.101/32
SPF_IP213.213.132.1
SPF_IP213.213.132.2
SPF_IP82.221.0.0/16
SPF_MXthrestir.is

Related pages

Pivot deeper into the graph from threstir.is.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "threstir.is"})-[: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.