penguin.com
Observed 2026-07-15T13:54:12.778Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byMimecast
Registered withCSC Corporate Domains, Inc.
IPv6 · 3 subdomains · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat penguin.com actually stands on - every host below is a signed observation
penguin.com
A / AAAA
23.185.0.12620:12a:8001::12620:12a:8000::1
Cloudflareserves the site
NS
ns-24.awsdns-03.comns-642.awsdns-16.netns-1747.awsdns-26.co.ukns-1160.awsdns-17.org
awsdns-03.com + awsdns-16.net + moreanswers its DNS
MX
us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com
Mimecastreceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.penguin.com/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time40 ms
DNS resolutionNOERROR
Redirect chain
https://www.penguin.com/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
23.185.0.1
AAAA 2
2620:12a:8001::12620:12a:8000::1
MX 2
10us-smtp-inbound-1.mimecast.com10us-smtp-inbound-2.mimecast.com
TXT 1
v=DNSSEC1; (detected)
NS 4
ns-24.awsdns-03.comns-642.awsdns-16.netns-1747.awsdns-26.co.ukns-1160.awsdns-17.org
SOA 1
ns-642.awsdns-16.net awsdns-hostmaster.amazon.com
TLS Certificates (0)
None.
Subdomains (3)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
b15e1c1d-6b53-46c9-8c57-855914ac846b- Output Hash
31cf86a137f62ffff78489b58ded2678806001a4dab71da0cf7115429800b33d- Signature
ed25519:cf84884fa9b70b19dec192d2796ba08478c4d7f58de26157ccda8e2c4cba77f3bb3a0eae13741970450b575deb77cef488909c2479a9cf8650a36176aecc2d01- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast