Hostname
firstoptionsoftware.com
Last fetched
firstoptionsoftware.com resolves to 4 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in GB. WHOIS lists iana:2 as the registrar.
Nutrition Label
Resolution chain
firstoptionsoftware.com resolves to 4 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 13.134.255.101 | 13.134.0.0/15 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 13.134.50.236 | 13.134.0.0/15 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 18.168.243.30 | 18.168.0.0/14 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
| 18.171.120.39 | 18.168.0.0/14 | AS16509 | AMAZON-02 - Amazon.com, Inc. | GB |
WHOIS identity
- Registrar
- iana:2
- Organization
- first option software
- Contact emails
Subdomains
46 observed subdomains of firstoptionsoftware.com.
Showing 21 of 46. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from firstoptionsoftware.com in the public web crawl.
13 sites link to this hostname.
41 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
9 SPF mechanisms authorising senders for firstoptionsoftware.com.
| Mechanism | Target |
|---|---|
| SPF_A | mail.callclosed.net |
| SPF_A | mail2.callclosed.net |
| SPF_A | smtp2.firstoption.net |
| SPF_INCLUDE | _spf.google.com |
| SPF_IP | 195.49.145.32/27 |
| SPF_IP | 207.126.144.0/20 |
| SPF_IP | 62.232.180.222/32 |
| SPF_IP | 64.18.0.0/20 |
| SPF_MX | firstoptionsoftware.com |
Related pages
Pivot deeper into the graph from firstoptionsoftware.com.
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "firstoptionsoftware.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.