Hostname

rtb.buzz

Last fetched Fri, 22 May 2026 03:39:49 GMT

rtb.buzz resolves to 3 IPv4 addresses operated by HETZNER-AS in DE. WHOIS lists iana:81 as the registrar.

Nutrition Label

Resolution chain

rtb.buzz resolves to 3 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IP	Prefix	ASN	Operator	Country
138.199.195.122	138.199.128.0/17	AS24940	HETZNER-AS	DE
185.206.180.161	185.206.180.0/24	AS205787	WIRELESSDATANET-LLC-1 - Wireless Data Net, LLC	DE
185.206.180.173	185.206.180.0/24	AS205787	WIRELESSDATANET-LLC-1 - Wireless Data Net, LLC	DE

WHOIS identity

Registrar: iana:81
Organization: highloadit ou
Contact emails: —

Subdomains

9 observed subdomains of rtb.buzz.

Subdomain
cache.rtb.buzz
www.rtb.buzz
us-east.rtb.buzz
service-oauth2.rtb.buzz
mail.rtb.buzz
inhouse-us.rtb.buzz
eu.rtb.buzz
dnspanel.rtb.buzz
dashboard.rtb.buzz

Threat posture

History

Mail and authentication

MX records

SPF policy

3 SPF mechanisms authorising senders for rtb.buzz.

Mechanism	Target
SPF_INCLUDE	_spf.google.com
SPF_INCLUDE	_spf.mlsend.com
SPF_INCLUDE	spfa.mailendo.com

Pivot deeper into the graph from rtb.buzz.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "rtb.buzz"})-[: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.