Hostname

stackup.fi

Last fetched Mon, 01 Jun 2026 01:20:53 GMT

stackup.fi appears in WhisperGraph with partial WHOIS records but no current public IPv4 resolution.

Nutrition Label

Resolution chain

stackup.fi has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.

WHOIS identity

No WHOIS records are currently associated with stackup.fi in WhisperGraph.

Subdomains

25 observed subdomains of stackup.fi.

Subdomain
app.stackup.fi
dev.stackup.fi
docs.stackup.fi
trust.stackup.fi
www.stackup.fi

Showing 5 of 25. View all subdomains →

Web-graph footprint

Distinct hostnames that link to or from stackup.fi in the public web crawl.

90 sites link to this hostname.

51 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

smtp.google.com

SPF policy

1 SPF mechanism authorising senders for stackup.fi.

Mechanism	Target
SPF_INCLUDE	23377954.spf10.hubspotemail.net

Pivot deeper into the graph from stackup.fi.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "stackup.fi"})-[: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.