chapter4.at on Whisper Internet Directory

Nutrition Label

Resolution chain

chapter4.at resolves to 1 distinct IPv4 address via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
77.244.247.199	77.244.240.0/20	AS47692	NESSUS	AT

WHOIS identity

No WHOIS records are currently associated with chapter4.at in WhisperGraph.

Subdomains

2 observed subdomains of chapter4.at.

Subdomain
mail.chapter4.at
www.chapter4.at

Web-graph footprint

Distinct hostnames that link to or from chapter4.at in the public web crawl.

Sample inbound links

Sample outbound links

chapter4.eu

Threat posture

History

Mail and authentication

MX records

SPF policy

9 SPF mechanisms authorising senders for chapter4.at.

Mechanism	Target
SPF_A	chapter4.at
SPF_INCLUDE	spf.skende.at
SPF_IP	178.251.64.0/21
SPF_IP	185.17.12.0/22
SPF_IP	194.11.27.0/24
SPF_IP	217.116.176.0/20
SPF_IP	2a02:1748::/32
SPF_IP	91.206.8.0/23
SPF_MX	chapter4.at

Related pages

Pivot deeper into the graph from chapter4.at.

Cypher and MCP

Reproduce the resolution chain directly against graph.whisper.security:

MATCH (h:HOSTNAME {name: "chapter4.at"})-[: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.