Hostname

webself.cz

Last fetched Fri, 03 Jul 2026 09:18:27 GMT

webself.cz resolves to 1 IPv4 address operated by AS24641 in CZ. WHOIS lists registrar:reg-internet-cz as the registrar.

Nutrition Label

Resolution chain

webself.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
77.240.190.133	77.240.176.0/20	AS24641	—	CZ
77.240.190.133	77.240.176.0/20	AS24641	—	CZ

WHOIS identity

Registrar: registrar:reg-internet-cz
Organization: com group a.s.
Contact emails: —

Subdomains

6 observed subdomains of webself.cz.

Subdomain
bystronic.webself.cz
cloud.webself.cz
mail.webself.cz
smtp.webself.cz
www.webself.cz

Showing 5 of 6. View all subdomains →

Threat posture

History

Mail and authentication

MX records

smtp.webself.cz

SPF policy

2 SPF mechanisms authorising senders for webself.cz.

Mechanism	Target
SPF_MX	smtp.webself.cz
SPF_MX	webself.cz

Pivot deeper into the graph from webself.cz.

Cypher and MCP

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

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