Hostname

arws.cz

Last fetched Thu, 23 Jul 2026 23:46:28 GMT

arws.cz resolves to 1 IPv4 address operated by AS39392 in CZ. WHOIS lists registrar:reg-wedos as the registrar.

Nutrition Label

Resolution chain

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

IP	Prefix	ASN	Operator	Country
37.235.104.63	37.235.96.0/20	AS39392	—	CZ

WHOIS identity

Registrar: registrar:reg-wedos
Organization: dohnal pertot slanina, advokátní kancelář, v.o.s.
Contact emails: —

Subdomains

3 observed subdomains of arws.cz.

Subdomain
portal.arws.cz
preview.arws.cz
www.arws.cz

Web-graph footprint

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

227 sites link to this hostname.

166 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 arws.cz.

Mechanism	Target
SPF_INCLUDE	_spf.google.com
SPF_INCLUDE	sparkpostmail.com
SPF_INCLUDE	spf.smartemailing.cz

Pivot deeper into the graph from arws.cz.

Cypher and MCP

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

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