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Hostname

classdoor.app

Last fetched

classdoor.app resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:49 as the registrar.

Nutrition Label

WHISPER CANON · classdoor.appRouting diversity1.5/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint8.0/10canon.whisper.security/host/classdoor.app

Resolution chain

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

IPPrefixASNOperatorCountry
104.19.240.93104.19.240.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
104.19.241.93104.19.240.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

Registrar
iana:49
Organization
whois privacy protection service by muumuudomain
Contact emails
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Subdomains

3 observed subdomains of classdoor.app.

Subdomain
report.classdoor.app
www.classdoor.app
report-competition.classdoor.app

Web-graph footprint

Distinct hostnames that link to or from classdoor.app in the public web crawl.

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

2 SPF mechanisms authorising senders for classdoor.app.

MechanismTarget
SPF_INCLUDE_spf.firebasemail.com
SPF_INCLUDE_spf.muumuu-mail.com

Related pages

Pivot deeper into the graph from classdoor.app.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "classdoor.app"})-[: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.