Hostname

cvster.nl

Last fetched Tue, 28 Jul 2026 05:04:56 GMT

cvster.nl resolves to 6 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists registrar:team.blue nl b.v. as the registrar.

Nutrition Label

Resolution chain

cvster.nl resolves to 6 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
104.18.0.217	104.18.0.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
104.18.1.217	104.18.0.0/20	AS13335	CLOUDFLARENET - Cloudflare, Inc.	CA
18.64.211.21	18.64.210.0/23	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
18.64.211.7	18.64.210.0/23	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
18.64.211.89	18.64.210.0/23	AS16509	AMAZON-02 - Amazon.com, Inc.	DE
18.64.211.18	18.64.210.0/23	AS16509	AMAZON-02 - Amazon.com, Inc.	DE

WHOIS identity

Registrar: registrar:team.blue nl b.v.
Organization: —
Contact emails: —

Subdomains

9 observed subdomains of cvster.nl.

Subdomain
help.cvster.nl
staging.cvster.nl
www.cvster.nl

Showing 3 of 9. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from cvster.nl in the public web crawl.

276 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

8 SPF mechanisms authorising senders for cvster.nl.

Mechanism	Target
SPF_A	cvster.nl
SPF_INCLUDE	_spf.transip.email
SPF_INCLUDE	helpscoutemail.com
SPF_INCLUDE	sendgrid.net
SPF_INCLUDE	spf.improvmx.com
SPF_IP	168.245.115.120
SPF_IP	168.245.65.255
SPF_MX	cvster.nl

Pivot deeper into the graph from cvster.nl.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "cvster.nl"})-[: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.