Hostname

c.at

Last fetched Fri, 22 May 2026 16:23:43 GMT

c.at resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:host europe gmbh as the registrar.

Nutrition Label

Resolution chain

c.at resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
104.21.18.45	104.21.16.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
172.67.180.97	172.67.176.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA

WHOIS identity

Registrar: registrar:host europe gmbh
Organization: host europe
Contact emails: —

Subdomains

3 observed subdomains of c.at.

Subdomain
momo.c.at
www.c.at
mx0.c.at

Web-graph footprint

Distinct hostnames that link to or from c.at in the public web crawl.

16 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

momo.c.at

SPF policy

1 SPF mechanism authorising senders for c.at.

Mechanism	Target
SPF_MX	c.at

Pivot deeper into the graph from c.at.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "c.at"})-[: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.