Hostname
certsy.com
Last fetched
certsy.com resolves to 8 IPv4 addresses operated by AMAZON-02 - Amazon.com, Inc. in US. WHOIS lists iana:81 as the registrar.
Nutrition Label
Resolution chain
certsy.com 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 |
|---|---|---|---|---|
| 13.33.252.120 | 13.33.248.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.33.252.13 | 13.33.248.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.33.252.45 | 13.33.248.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 13.33.252.72 | 13.33.248.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.161.225.112 | 3.161.224.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.161.225.116 | 3.161.224.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.161.225.62 | 3.161.224.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
| 3.161.225.88 | 3.161.224.0/21 | AS16509 | AMAZON-02 - Amazon.com, Inc. | US |
WHOIS identity
- Registrar
- iana:81
- Organization
- alan skorkin
- Contact emails
Subdomains
5 observed subdomains of certsy.com.
Web-graph footprint
Distinct hostnames that link to or from certsy.com in the public web crawl.
9 sites link to this hostname.
Sample inbound links
Sample outbound links
Threat posture
History
Mail and authentication
SPF policy
3 SPF mechanisms authorising senders for certsy.com.
| Mechanism | Target |
|---|---|
| SPF_INCLUDE | amazonses.com |
| SPF_INCLUDE | corp.spf.seek.com.au |
| SPF_INCLUDE | mail.zendesk.com |
Related pages
Pivot deeper into the graph from certsy.com.
- IP · 13.33.252.120
- ASN · AS16509AMAZON-02 - Amazon.com, Inc.
- Registrar · iana:81
- Country · US
- Email · 27c6da97e40575ccce60e7031c6062ba-5868552@contact.gandi.net
- TLD · .com
- Browse hostnames · ce…
- 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: "certsy.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.