Hostname
level4.cat
Last fetched
level4.cat resolves to 2 IPv4 addresses operated by CLOUDFLARENET - Cloudflare, Inc. in CA.
Nutrition Label
Resolution chain
level4.cat 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 |
|---|---|---|---|---|
| 104.21.8.157 | 104.21.0.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
| 172.67.130.140 | 172.67.128.0/20 | AS13335 | CLOUDFLARENET - Cloudflare, Inc. | CA |
WHOIS identity
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Subdomains
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Web-graph footprint
Distinct hostnames that link to or from level4.cat in the public web crawl.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
2 SPF mechanisms authorising senders for level4.cat.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | spf-de.emailsignatures365.com |
| SPF_INCLUDE | spf.protection.outlook.com |
Related pages
Pivot deeper into the graph from level4.cat.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "level4.cat"})-[: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.