Hostname

gertu.de

Last fetched Wed, 22 Jul 2026 20:56:53 GMT

gertu.de resolves to 1 IPv4 address operated by AS12912 in PL.

Nutrition Label

Resolution chain

gertu.de 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
217.153.241.196	217.153.0.0/16	AS12912	—	PL

WHOIS identity

No WHOIS records are currently associated with gertu.de in WhisperGraph.

Subdomains

2 observed subdomains of gertu.de.

Subdomain
testh2cproxy.gertu.de
www.gertu.de

Web-graph footprint

Distinct hostnames that link to or from gertu.de in the public web crawl.

1 site linked to from this hostname.

Sample outbound links

web.rawpol.com

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for gertu.de.

Mechanism	Target
SPF_A	gertu.de
SPF_INCLUDE	spf.domeny.com
SPF_MX	gertu.de

Pivot deeper into the graph from gertu.de.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "gertu.de"})-[: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.