Hostname
bldr.com
Last fetched
bldr.com resolves to 1 IPv4 address operated by MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation in US. WHOIS lists iana:2 as the registrar.
Nutrition Label
Resolution chain
bldr.com 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 |
|---|---|---|---|---|
| 40.117.138.103 | 40.112.0.0/13 | AS8075 | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | US |
WHOIS identity
- Registrar
- iana:2
- Organization
- builders firstsource
- Contact emails
Subdomains
78 observed subdomains of bldr.com.
Showing 25 of 78. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from bldr.com in the public web crawl.
807 sites link to this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
7 SPF mechanisms authorising senders for bldr.com.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | _spf.salesforce.com |
| SPF_INCLUDE | _spfb.bldr.com |
| SPF_INCLUDE | _spfc.bldr.com |
| SPF_INCLUDE | aspmx.pardot.com |
| SPF_INCLUDE | sendgrid.net |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_INCLUDE | us._netblocks.mimecast.com |
Related pages
Pivot deeper into the graph from bldr.com.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "bldr.com"})-[: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.