Hostname
firsthand.co
Last fetched
firsthand.co resolves to 16 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in HK. WHOIS lists iana:146 as the registrar.
Nutrition Label
Resolution chain
firsthand.co resolves to 16 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
WHOIS identity
- Registrar
- iana:146
- Organization
- on behalf of firsthand.co owner
- Contact emails
Subdomains
148 observed subdomains of firsthand.co.
Showing 25 of 148. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from firsthand.co in the public web crawl.
969 sites link to this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
7 SPF mechanisms authorising senders for firsthand.co.
| Mechanism | Target |
|---|---|
| SPF_A | firsthand.co |
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | _spf.smtp.com |
| SPF_INCLUDE | amazonses.com |
| SPF_INCLUDE | mail.zendesk.com |
| SPF_INCLUDE | spf.mtasv.net |
| SPF_MX | firsthand.co |
Related pages
Pivot deeper into the graph from firsthand.co.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "firsthand.co"})-[: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 20Or query Whisper from your own LLM workflow via the Whisper MCP server.