Hostname
check.in
Last fetched
check.in resolves to 8 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in US. WHOIS lists iana:48 as the registrar.
Nutrition Label
Resolution chain
check.in resolves to 8 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.
| IP | Prefix | ASN | Operator | Country |
|---|---|---|---|---|
| 13.224.125.105 | 13.224.125.0/24 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.224.125.32 | 13.224.125.0/24 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.224.125.33 | 13.224.125.0/24 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.224.125.85 | 13.224.125.0/24 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.171.117.118 | 3.171.116.0/22 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.171.117.28 | 3.171.116.0/22 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.171.117.75 | 3.171.116.0/22 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.171.117.76 | 3.171.116.0/22 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
WHOIS identity
- Registrar
- iana:48
- Organization
- domain administrator
- Contact emails
Subdomains
55 observed subdomains of check.in.
Showing 25 of 55. View all subdomains →
Web-graph footprint
Distinct hostnames that link to or from check.in in the public web crawl.
42 sites link to this hostname.
703 sites linked to from this hostname.
Sample inbound links
Threat posture
History
Mail and authentication
MX records
SPF policy
6 SPF mechanisms authorising senders for check.in.
| Mechanism | Target |
|---|---|
| SPF_A | check.in |
| SPF_INCLUDE | authsmtp.com |
| SPF_INCLUDE | spf.protection.outlook.com |
| SPF_IP | 54.164.73.49/32 |
| SPF_IP | 54.208.102.79/32 |
| SPF_MX | check.in |
Related pages
Pivot deeper into the graph from check.in.
- IP · 13.224.125.105
- ASN · AS16509AMAZON-02 - Amazon.com, Inc.
- Registrar · iana:48
- Country · US
- Email · contact@openmail.co
- TLD · .in
- Browse hostnames · ch…
- Glossary · What is a hostname?
- Whisper Internet Directory — home
- Live MOAS conflicts feed
- Threat feed · Spamhaus DROP
- United States internet infrastructure
Cypher and MCP
Reproduce the resolution chain directly against graph.whisper.security:
MATCH (h:HOSTNAME {name: "check.in"})-[: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.