Hostname
osdev.org
Last fetched
osdev.org resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA. WHOIS lists iana:1068 as the registrar.
Nutrition Label
Resolution chain
osdev.org resolves to 2 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 104.21.69.141 | 104.21.64.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.209.29 | 172.67.208.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
- Registrar
- iana:1068
- Organization
- matthieu heimer
- Contact emails
Subdomains
13 observed subdomains of osdev.org.
Web-graph footprint
Distinct hostnames that link to or from osdev.org in the public web crawl.
62 sites link to this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
4 SPF mechanisms authorising senders for osdev.org.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | ap.rp.oracleemaildelivery.com |
| SPF_INCLUDE | aspmx.googlemail.com |
| SPF_INCLUDE | eu.rp.oracleemaildelivery.com |
| SPF_INCLUDE | rp.oracleemaildelivery.com |
Related pages
Pivot deeper into the graph from osdev.org.
- IP · 104.21.69.141
- ASN · AS13335CLOUDFLARENET - Cloudflare, Inc.
- Registrar · iana:1068
- Country · CA
- Email · matt.heimer@gmail.com
- TLD · .org
- Browse hostnames · os…
- 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: "osdev.org"})-[: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.