Hostname
challengerdoor.com
Last fetched
challengerdoor.com resolves to 8 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in US. WHOIS lists iana:468 as the registrar.
Nutrition Label
Resolution chain
challengerdoor.com resolves to 8 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 108.139.29.109 | 108.139.29.0/24 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 108.139.29.13 | 108.139.29.0/24 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 108.139.29.46 | 108.139.29.0/24 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 108.139.29.94 | 108.139.29.0/24 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 18.244.140.100 | 18.244.136.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 18.244.140.47 | 18.244.136.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 18.244.140.5 | 18.244.136.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 18.244.140.95 | 18.244.136.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
WHOIS identity
- Registrar
- iana:468
- Organization
- challenger door
- Contact emails
- jfaroh@challengerdoor.com
- jmyers@challengerdoor.com
- 1b60f375-9e4f-479e-9e63-50a787def192@identity-protect.org
- 385839f4-4a19-4f3d-8986-ef37d8a500b3@identity-protect.org
- 5ba4c4f1-3974-49a5-b197-4fc5f76aedf7@identity-protect.org
- 8255675c-3e39-4c7d-a328-328b5b28dabc@identity-protect.org
- 8b60866b-033e-4703-8abc-1c1e1ac5a507@identity-protect.org
- c3b91ba1-2e1c-4a91-85c9-9aa1666be687@identity-protect.org
- d0ed143c-16bb-4419-bd54-d801d02fa1e3@identity-protect.org
- owner-140056@challengerdoor.com.whoisprivacyservice.org
- owner-4567535@challengerdoor.com.whoisprivacyservice.org
Subdomains
5 observed subdomains of challengerdoor.com.
Web-graph footprint
Distinct hostnames that link to or from challengerdoor.com in the public web crawl.
9 sites link to this hostname.
1 site linked to from this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
3 SPF mechanisms authorising senders for challengerdoor.com.
| Mechanism | Target |
|---|---|
| SPF_EXISTS | %{i}.spf.lci1.iphmx.com |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 66.249.231.101 |
Related pages
Pivot deeper into the graph from challengerdoor.com.
- IP · 108.139.29.109
- ASN · AS16509AMAZON-02 - Amazon.com, Inc.
- Registrar · iana:468
- Country · US
- Email · jfaroh@challengerdoor.com
- TLD · .com
- Browse hostnames · ch…
- Glossary · What is a hostname?
- Whisper Internet Directory — home
- Live MOAS conflicts feed
- Threat feed · Spamhaus DROP
- United States internet infrastructure
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "challengerdoor.com"})-[: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.