Hostname
rtr.at
Last fetched
rtr.at resolves to 1 IPv4 address operated by RTR-AS in AT. WHOIS lists registrar:hetzner online gmbh as the registrar.
Nutrition Label
Resolution chain
rtr.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 |
|---|---|---|---|---|
| 81.16.157.3 | 81.16.157.0/24 | AS42378 | RTR-AS | AT |
WHOIS identity
- Registrar
- registrar:hetzner online gmbh
- Organization
- rundfunk und telekom regulierungs-gmbh
- Contact emails
Subdomains
249 observed subdomains of rtr.at.
Showing 25 of 249. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from rtr.at in the public web crawl.
1,495 sites link to this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
7 SPF mechanisms authorising senders for rtr.at.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | 2r9w8jz48.spf.checkpoint-spf.com |
| SPF_INCLUDE | spf.mailjet.com |
| SPF_INCLUDE | spf.mlwrx.com |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 148.251.182.39 |
| SPF_IP | 2a01:4f8:211:1705:0:0:0:2 |
| SPF_IP | 81.16.157.0/24 |
Related pages
Pivot deeper into the graph from rtr.at.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "rtr.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 20Or query Whisper from your own LLM workflow via the Whisper MCP server.