Skip to content

Hostname

colas.cz

Last fetched

colas.cz resolves to 1 IPv4 address operated by AS51013 in SK. WHOIS lists registrar:reg-active24 as the registrar.

Nutrition Label

WHISPER CANON · colas.czRouting diversity1.5/10Peering density3.6/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency6.7/10Resolver footprint8.2/10canon.whisper.security/host/colas.cz

Resolution chain

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

IPPrefixASNOperatorCountry
37.9.175.16337.9.175.0/24AS51013—SK

WHOIS identity

Registrar
registrar:reg-active24
Organization
colas cz, a.s.
Contact emails

Subdomains

2 observed subdomains of colas.cz.

Subdomain
laborator.colas.cz
www.colas.cz

Web-graph footprint

Distinct hostnames that link to or from colas.cz in the public web crawl.

93 sites link to this hostname.

20 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

5 SPF mechanisms authorising senders for colas.cz.

MechanismTarget
SPF_INCLUDE_spf.m1.websupport.sk
SPF_INCLUDEspf1.speig.fr
SPF_INCLUDEspf2.speig.fr
SPF_INCLUDEspf3.speig.fr
SPF_INCLUDEspf4.speig.fr

Related pages

Pivot deeper into the graph from colas.cz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "colas.cz"})-[: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.