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Hostname

knock.co

Last fetched

knock.co resolves to 16 IPv4 addresses operated by AMAZON-AES - Amazon.com, Inc. in US. WHOIS lists iana:146 as the registrar.

Nutrition Label

WHISPER CANON · knock.coRouting diversity5.4/10Peering density9.6/10MOAS conflict✓ noneThreat-feed listings10.0/10WHOIS transparency10.0/10Resolver footprint8.3/10canon.whisper.security/host/knock.co

Resolution chain

knock.co resolves to 16 distinct IPv4 addresses via WhisperGraph DNS data. Each row links to the IP, prefix, and announcing ASN.

IPPrefixASNOperatorCountry
16.15.177.5016.15.176.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.15.180.7716.15.176.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.15.183.17116.15.176.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.15.184.18916.15.184.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.15.195.19116.15.192.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.15.204.11416.15.200.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.15.207.16016.15.200.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.15.218.18416.15.216.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.15.223.13716.15.216.0/21AS14618AMAZON-AES - Amazon.com, Inc.US
16.182.33.1316.182.32.0/21AS16509AMAZON-02 - Amazon.com, Inc.US
3.5.12.133.5.12.0/23AS14618AMAZON-AES - Amazon.com, Inc.US
52.216.210.24552.216.208.0/20AS16509AMAZON-02 - Amazon.com, Inc.US
52.217.192.552.217.192.0/19AS16509AMAZON-02 - Amazon.com, Inc.US
52.217.87.14752.217.87.0/24AS16509AMAZON-02 - Amazon.com, Inc.US
54.231.169.2954.231.160.0/19AS16509AMAZON-02 - Amazon.com, Inc.US
54.231.173.554.231.160.0/19AS16509AMAZON-02 - Amazon.com, Inc.US

WHOIS identity

Registrar
iana:146
Organization
domains by proxy,
Contact emails

Subdomains

2 observed subdomains of knock.co.

Subdomain
assets.knock.co
www.knock.co

Web-graph footprint

Distinct hostnames that link to or from knock.co in the public web crawl.

8 sites link to this hostname.

Sample inbound links

Threat posture

History

Mail and authentication

MX records

SPF policy

1 SPF mechanism authorising senders for knock.co.

MechanismTarget
SPF_INCLUDE_spf.google.com

Related pages

Pivot deeper into the graph from knock.co.

Cypher and MCP

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

MATCH (h:HOSTNAME {name: "knock.co"})-[: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.