Hostname
opac.app
Last fetched
opac.app resolves to 1 IPv4 address operated by netcup-AS - netcup GmbH in DE. WHOIS lists iana:81 as the registrar.
Nutrition Label
Resolution chain
opac.app 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 |
|---|---|---|---|---|
| 5.45.99.146 | 5.45.96.0/22 | AS197540 | netcup-AS - netcup GmbH | DE |
WHOIS identity
- Registrar
- iana:81
- Organization
- raphael michel
- Contact emails
Subdomains
1 observed subdomain of opac.app.
| Subdomain |
|---|
| www.opac.app |
Web-graph footprint
Distinct hostnames that link to or from opac.app in the public web crawl.
9 sites link to this hostname.
Threat posture
History
Mail and authentication
MX records
SPF policy
4 SPF mechanisms authorising senders for opac.app.
| Mechanism | Target |
|---|---|
| SPF_A | opac.app |
| SPF_INCLUDE | spf.mailjet.com |
| SPF_INCLUDE | spf.smtp.net |
| SPF_MX | opac.app |
Related pages
Pivot deeper into the graph from opac.app.
- IP · 5.45.99.146
- ASN · AS197540netcup-AS - netcup GmbH
- Registrar · iana:81
- Country · DE
- Email · cac0e758f88cdf56a2e1f1325dda2803-7985037@contact.gandi.net
- TLD · .app
- Browse hostnames · op…
- 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: "opac.app"})-[: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.