Hostname

tc.is

Last fetched Fri, 19 Jun 2026 11:51:39 GMT

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

Nutrition Label

Resolution chain

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

WHOIS identity

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

Subdomains

12 observed subdomains of tc.is.

Subdomain
autodiscover.tc.is
mx1.tc.is
mx2.tc.is
mx3.tc.is
mx4.tc.is
mxa.tc.is
mxin.tc.is
mxin1.tc.is
postur.tc.is
sma.tc.is
smokkur.tc.is
www.tc.is

Threat posture

History

Mail and authentication

MX records

SPF policy

5 SPF mechanisms authorising senders for tc.is.

Mechanism	Target
SPF_A	mail.internet.is
SPF_A	mail.simnet.is
SPF_A	postur.simnet.is
SPF_IP	212.30.212.128/26
SPF_MX	tc.is

Pivot deeper into the graph from tc.is.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "tc.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.