Hostname
42courses.com
Last fetched
42courses.com resolves to 4 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in CA. WHOIS lists iana:1387 as the registrar.
Nutrition Label
Resolution chain
42courses.com resolves to 4 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 15.197.253.240 | 15.197.240.0/20 | AS16509 | AMAZON-02 - Amazon.com, Inc. | CA |
| 3.33.249.164 | 3.33.240.0/20 | AS16509 | AMAZON-02 - Amazon.com, Inc. | CA |
| 52.223.53.203 | 52.223.48.0/20 | AS16509 | AMAZON-02 - Amazon.com, Inc. | CA |
| 99.83.185.157 | 99.83.176.0/20 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
WHOIS identity
- Registrar
- iana:1387
- Organization
- chris rawlinson
- Contact emails
- chrisraw@gmail.com
- whoisdanieldavey@gmail.com
- 413c7715c2@42courses.com.whoistrustee.com
- 2e8a4f74d4ad6c6c90c3f6398342c9abc505ba4db3d8db646f231089822abe96@42courses.com.whoisproxy.org
- 31eca412331a53d3fa99b1e3f297ac8914665919e14e276a5b61d6ab8f9460a2@42courses.com.whoisproxy.org
- 42a503cee6e12323d1b4eb4d85c1f13deddcde2fe6a6f01026fbd838b6f66696@42courses.com.whoisproxy.org
- 9be4cc88639399be6f8f3cfd9218458782a8e0fa6fb63afc31d0a9b282f129fd@42courses.com.whoisproxy.org
- a17d34a0e8be10138325d24ae6d70a86035226ab5092838bf879a5f5e4b4ab03@42courses.com.whoisproxy.org
Subdomains
9 observed subdomains of 42courses.com.
Web-graph footprint
Distinct hostnames that link to or from 42courses.com in the public web crawl.
161 sites link to this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
4 SPF mechanisms authorising senders for 42courses.com.
| Mechanism | Target |
|---|---|
| SPF_A | 42courses.com |
| SPF_INCLUDE | _spf.google.com |
| SPF_INCLUDE | spf.mtasv.net |
| SPF_MX | 42courses.com |
Related pages
Pivot deeper into the graph from 42courses.com.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "42courses.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.