Skip to content

Hostname

ct.nl

Last fetched

ct.nl resolves to 3 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.

Nutrition Label

WHISPER CANON · ct.nlRouting diversity—Peering density—MOAS conflict—Threat-feed listings—WHOIS transparency—Resolver footprint—canon.whisper.security/host/ct.nl

Resolution chain

ct.nl resolves to 3 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
104.26.12.211104.26.0.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
104.26.13.211104.26.0.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
172.67.73.102172.67.64.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

WHOIS data is temporarily unavailable. Refresh in a moment to retry.

Subdomains

Subdomain count is temporarily unavailable. Refresh in a moment to retry.

Web-graph footprint

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

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

10 SPF mechanisms authorising senders for ct.nl.

MechanismTarget
SPF_Act.nl
SPF_INCLUDEmailfilter.myrootnet.nl
SPF_INCLUDEmailswitch.nl
SPF_INCLUDEproxy.contactcenterlive.nl
SPF_INCLUDEspf.protection.outlook.com
SPF_INCLUDEspf4648.copernica.net
SPF_IP109.72.93.145
SPF_IP185.173.21.78
SPF_IP2a0b:3100:100:34:0:0:21:78
SPF_MXct.nl

Related pages

Pivot deeper into the graph from ct.nl.

Cypher and MCP

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

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