Skip to content

Hostname

checkfirst.ca

Last fetched

checkfirst.ca resolves to 1 IPv4 address operated by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation in CA. WHOIS lists registrar:internic.ca inc. as the registrar.

Nutrition Label

WHISPER CANON · checkfirst.caRouting diversity1.5/10Peering density5.4/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint5.2/10canon.whisper.security/host/checkfirst.ca

Resolution chain

checkfirst.ca resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
20.39.131.11720.36.0.0/14AS8075MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft CorporationCA

WHOIS identity

Registrar
registrar:internic.ca inc.
Organization
alberta securities commission
Contact emails

Subdomains

8 observed subdomains of checkfirst.ca.

Subdomain
dev.checkfirst.ca
www2.checkfirst.ca
www.checkfirst.ca
staging.checkfirst.ca
stage2.checkfirst.ca
stage.checkfirst.ca
dev2.checkfirst.ca
dev-stage.checkfirst.ca

Web-graph footprint

Distinct hostnames that link to or from checkfirst.ca in the public web crawl.

106 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Related pages

Pivot deeper into the graph from checkfirst.ca.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "checkfirst.ca"})-[: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.