Hostname

acerto.cz

Last fetched Wed, 26 Aug 2026 02:55:21 GMT

acerto.cz resolves to 1 IPv4 address operated by ACTIVE24-AS - ACTIVE 24, s.r.o. in CZ. WHOIS lists registrar:reg-internet-cz as the registrar.

Nutrition Label

Resolution chain

acerto.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
31.15.10.38	31.22.60.0/23	AS25234	ACTIVE24-AS - ACTIVE 24, s.r.o.	CZ

WHOIS identity

Registrar: registrar:reg-internet-cz
Organization: ceska spol.certif. odhadcu majetku
Contact emails: —

Subdomains

1 observed subdomain of acerto.cz.

Subdomain
www.acerto.cz

Web-graph footprint

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

7 sites link to this hostname.

10 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

acerto-cz.mail.protection.outlook.com

SPF policy

3 SPF mechanisms authorising senders for acerto.cz.

Mechanism	Target
SPF_A	acerto.cz
SPF_INCLUDE	spf.protection.outlook.com
SPF_IP	62.209.202.155

Pivot deeper into the graph from acerto.cz.

Cypher and MCP

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

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