CONTINUOUS INTERNET TELEMETRY24H DRIFT154 material changesacross 106 domains · +8 vs yesterdayEMAIL DRIFT1 domain switched email providertop destination xn----8sbafg9clhjcp.bgCERT DRIFT1 domains switched issuing CA24hNOW4,348 curated domains not answeringlast probe, steadyERRORS28,355 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED85,222 throttled or blocked our scanner429 rate-limit / 403 bot-blockMOVERgov.brAll nameservers removed (domain is dark)24H DRIFT154 material changesacross 106 domains · +8 vs yesterdayEMAIL DRIFT1 domain switched email providertop destination xn----8sbafg9clhjcp.bgCERT DRIFT1 domains switched issuing CA24hNOW4,348 curated domains not answeringlast probe, steadyERRORS28,355 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED85,222 throttled or blocked our scanner429 rate-limit / 403 bot-blockMOVERgov.brAll nameservers removed (domain is dark)

penguin.com

Observed Jul 18, 2026, 12:34 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Email byMimecast
Secured byLet's Encrypt
Registered withCSC Corporate Domains, Inc.
IPv6 · 1 subdomain · 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:8000::12620:12a:8001::1
2620serves the site
NS
ns-24.awsdns-03.comns-642.awsdns-16.netns-1160.awsdns-17.orgns-1747.awsdns-26.co.uk
awsdns-03.com + awsdns-16.net + moreanswers its DNS
MX
us-smtp-inbound-1.mimecast.comus-smtp-inbound-2.mimecast.com
Mimecastreceives its email
TLS
penguin.com
Let's Encryptissued its certificate

DNS Records

A 1

  • 23.185.0.1

AAAA 2

  • 2620:12a:8000::1
  • 2620:12a:8001::1

MX 2

  • 10us-smtp-inbound-1.mimecast.com
  • 10us-smtp-inbound-2.mimecast.com

NS 4

  • ns-24.awsdns-03.com
  • ns-642.awsdns-16.net
  • ns-1160.awsdns-17.org
  • ns-1747.awsdns-26.co.uk

SOA 1

  • ns-642.awsdns-16.net awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common NameIssuerExpires
penguin.com C=US, O=Let's Encrypt, CN=YR1 Sat, 10 Oct 2026 02:58:20 +0000
YR1 C=US, O=ISRG, CN=Root YR Sat, 02 Sep 2028 23:59:59 +0000
Root YR C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for penguin.com. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for penguin.com <a href="https://domaindrift.io/t/penguin.com"> <img src="https://domaindrift.io/badge/penguin.com.svg" width="300" height="64" alt="DomainDrift signed observations for penguin.com"> </a>

Ed25519 Receipt

Receipt ID
d7c88ffb-d707-46d6-922e-2171fffa7618
Output Hash
4167fa7e3889f5fdf05d6d1bad797956f313442565e2ebbd8790deb2aa6ffba4
Signature
ed25519:de5a3f9b7db0b3a2dc935b6fc5ce34ef2d7d9d0d9ed1c2def167ef3420b8d7434e111d119f7b7039bf8e192cfc5c5b7b45e10799cb4b59362a87510142955204
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser