Hostname

jsplan.cz

Last fetched Wed, 08 Jul 2026 16:03:17 GMT

jsplan.cz resolves to 1 IPv4 address operated by AS15685 in CZ. WHOIS lists registrar:reg-tele3 as the registrar.

Nutrition Label

Resolution chain

jsplan.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
82.208.27.163	82.208.27.0/24	AS15685	—	CZ

WHOIS identity

Registrar: registrar:reg-tele3
Organization: jaromír svatoš
Contact emails: —

Subdomains

6 observed subdomains of jsplan.cz.

Subdomain
dev.jsplan.cz
mx.jsplan.cz
new.jsplan.cz
webmail.jsplan.cz
wildcard.jsplan.cz
www.jsplan.cz

Web-graph footprint

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

18 sites linked to from this hostname.

Sample inbound links

e-cons.cz

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for jsplan.cz.

Mechanism	Target
SPF_INCLUDE	_spf.w2hosting.cz

Pivot deeper into the graph from jsplan.cz.

Cypher and MCP

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

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