sdf1.org

Nutrition Label

Resolution chain

sdf1.org 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:69

Organization

sdf public access unix system,

Contact emails

• smj@cirr.com

Subdomains

103 observed subdomains of sdf1.org.

Web-graph footprint

Distinct hostnames that link to or from sdf1.org in the public web crawl.

Threat posture

History

Mail and authentication

Related pages

Pivot deeper into the graph from sdf1.org.

• Registrar · iana:69
• Email · smj@cirr.com
• TLD · .org
• Browse hostnames · sd…
• 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: "sdf1.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 20

Or query Whisper from your own LLM workflow via the Whisper MCP server.