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Hostname

checkupdown.com

Last fetched

checkupdown.com resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:320 as the registrar.

Nutrition Label

WHISPER CANON · checkupdown.comRouting diversity2.4/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint3.2/10canon.whisper.security/host/checkupdown.com

Resolution chain

checkupdown.com resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
104.21.75.239104.21.64.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
172.67.183.165172.67.176.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

Registrar
iana:320
Organization
appadu software
Contact emails

Subdomains

2 observed subdomains of checkupdown.com.

Subdomain
owa.checkupdown.com
www.checkupdown.com

Web-graph footprint

Distinct hostnames that link to or from checkupdown.com in the public web crawl.

181 sites link to this hostname.

Sample inbound links

Threat posture

History

Related pages

Pivot deeper into the graph from checkupdown.com.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "checkupdown.com"})-[: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.