Hostname

sr.adv.br

Last fetched Sat, 30 May 2026 04:18:17 GMT

sr.adv.br resolves to 1 IPv4 address operated by AS28299 in BR.

Nutrition Label

Resolution chain

sr.adv.br 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
187.1.136.63	187.1.136.0/23	AS28299	—	BR

WHOIS identity

No WHOIS records are currently associated with sr.adv.br in WhisperGraph.

Web-graph footprint

Distinct hostnames that link to or from sr.adv.br in the public web crawl.

16 sites link to this hostname.

14 sites linked to from this hostname.

Sample inbound links

Sample outbound links

Threat posture

History

Mail and authentication

MX records

smtp.google.com

SPF policy

2 SPF mechanisms authorising senders for sr.adv.br.

Mechanism	Target
SPF_INCLUDE	_spf.rdstation.com.br
SPF_INCLUDE	sendgrid.net

Pivot deeper into the graph from sr.adv.br.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "sr.adv.br"})-[: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.