Hostname

fer-net.sk

Last fetched Thu, 23 Jul 2026 08:12:48 GMT

fer-net.sk resolves to 1 IPv4 address operated by AS25234 in CZ. WHOIS lists registrar:active 24, s.r.o. as the registrar.

Nutrition Label

Resolution chain

fer-net.sk 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
31.15.10.82	31.15.8.0/21	AS25234	—	CZ

WHOIS identity

Registrar: registrar:active 24, s.r.o.
Organization: —
Contact emails: —

Subdomains

4 observed subdomains of fer-net.sk.

Subdomain
autodiscover.fer-net.sk
speedtest.fer-net.sk
www.fer-net.sk
zakaznik.fer-net.sk

Web-graph footprint

Distinct hostnames that link to or from fer-net.sk in the public web crawl.

14 sites linked to from this hostname.

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for fer-net.sk.

Mechanism	Target
SPF_INCLUDE	spf.active24.com
SPF_IP	2a02:4a8:ac24:110:0:0:10:82
SPF_IP	31.15.10.82

Pivot deeper into the graph from fer-net.sk.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "fer-net.sk"})-[: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.