Hostname
ertl.jp
Last fetched
ertl.jp resolves to 1 IPv4 address operated by NICE - National University Corporation Nagoya University in JP.
Nutrition Label
Resolution chain
ertl.jp 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 |
|---|---|---|---|---|
| 133.6.204.139 | 133.6.0.0/16 | AS17687 | NICE - National University Corporation Nagoya University | JP |
WHOIS identity
- Registrar
- —
- Organization
- embedded and real-time systems laboratory,graduate school of informatics, nagoya university
- Contact emails
Subdomains
5 observed subdomains of ertl.jp.
Web-graph footprint
Distinct hostnames that link to or from ertl.jp in the public web crawl.
70 sites link to this hostname.
19 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
4 SPF mechanisms authorising senders for ertl.jp.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | _spf.sakura.ne.jp |
| SPF_INCLUDE | ertl.sakura.ne.jp |
| SPF_IP | 133.6.204.139 |
| SPF_MX | ertl.jp |
Related pages
Pivot deeper into the graph from ertl.jp.
- IP · 133.6.204.139
- ASN · AS17687NICE - National University Corporation Nagoya University
- Country · JP
- Email · nic-staff@sakura.ad.jp
- TLD · .jp
- Browse hostnames · er…
- 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: "ertl.jp"})-[: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.