Hostname

zettelkasten.de

Last fetched Tue, 23 Jun 2026 08:10:36 GMT

zettelkasten.de is a registered hostname under the .de top-level domain. Live infrastructure data is temporarily unavailable; refresh in a moment.

Nutrition Label

Resolution chain

Resolution chain data is temporarily unavailable. Refresh in a moment to retry.

WHOIS identity

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

Subdomains

13 observed subdomains of zettelkasten.de.

Subdomain
api.zettelkasten.de
course.zettelkasten.de
dev.zettelkasten.de
etherpad.zettelkasten.de
forum.zettelkasten.de
members.zettelkasten.de
presents.zettelkasten.de
wildcard.zettelkasten.de
www.zettelkasten.de

Showing 9 of 13. View all subdomains →

Web-graph footprint

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

736 sites link to this hostname.

212 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for zettelkasten.de.

Mechanism	Target
SPF_INCLUDE	spf.hostsharing.net

Pivot deeper into the graph from zettelkasten.de.

Cypher and MCP

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

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