Skip to content

Hostname

postflow.app

Last fetched

postflow.app resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:1505 as the registrar.

Nutrition Label

WHISPER CANON · postflow.appRouting diversity2.4/10Peering density10.0/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency3.3/10Resolver footprint8.0/10canon.whisper.security/host/postflow.app

Resolution chain

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

IPPrefixASNOperatorCountry
104.21.37.244104.21.32.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA
172.67.216.111172.67.208.0/20AS13335CLOUDFLARENET - Cloudflare, Inc.CA

WHOIS identity

Registrar
iana:1505
Organization
—
Contact emails

Subdomains

14 observed subdomains of postflow.app.

Subdomain
api.postflow.app
wss-cu.postflow.app
ws.postflow.app
status.postflow.app
static-temporary.postflow.app
static-local.postflow.app
static.postflow.app
st.postflow.app
socket.postflow.app
old.postflow.app
new.postflow.app
metrics.postflow.app
clickup.postflow.app
app.postflow.app

Web-graph footprint

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

23 sites link to this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for postflow.app.

MechanismTarget
SPF_INCLUDEzoho.eu

Related pages

Pivot deeper into the graph from postflow.app.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "postflow.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.