Hostname

heitzer.net

Last fetched Sun, 23 Aug 2026 22:48:14 GMT

heitzer.net resolves to 1 IPv4 address operated by HETZNER-AS - Hetzner Online GmbH. WHOIS lists iana:106 as the registrar.

Nutrition Label

Resolution chain

heitzer.net 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
167.233.1.165	167.233.0.0/16	AS24940	HETZNER-AS - Hetzner Online GmbH	—

WHOIS identity

Registrar: iana:106
Organization: —
Contact emails: —

Subdomains

2 observed subdomains of heitzer.net.

Subdomain
inbound.heitzer.net
www.heitzer.net

Web-graph footprint

Distinct hostnames that link to or from heitzer.net in the public web crawl.

23 sites linked to from this hostname.

Sample inbound links

unser-stadtplan.at

Sample outbound links

Threat posture

History

Mail and authentication

MX records

mx1.a1.net

SPF policy

2 SPF mechanisms authorising senders for heitzer.net.

Mechanism	Target
SPF_A	heitzer.net
SPF_INCLUDE	bspf.a1.net

Pivot deeper into the graph from heitzer.net.

Cypher and MCP

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

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