Hostname
esper.io
Last fetched
esper.io has no current public IPv4 resolution in WhisperGraph; WHOIS lists iana:468 as the registrar.
Nutrition Label
Resolution chain
esper.io has no current public IPv4 resolution in WhisperGraph. The WHOIS record below is the only graph data we have on this hostname.
WHOIS identity
- Registrar
- iana:468
- Organization
- domains by proxy,
- Contact emails
- —
Subdomains
45 observed subdomains of esper.io.
Showing 25 of 45. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from esper.io in the public web crawl.
280 sites link to this hostname.
276 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
4 SPF mechanisms authorising senders for esper.io.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | 5868902.spf05.hubspotemail.net |
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | _spf.salesforce.com |
| SPF_INCLUDE | mail.zendesk.com |
Related pages
Pivot deeper into the graph from esper.io.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "esper.io"})-[: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.