smartbrief.com

Observed Jul 22, 2026, 00:56 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Secured byLet's Encrypt

Registered withLexsynergy Limited

Also usesFacebook/MetaGoogle Search Console

tranco_40k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat smartbrief.com actually stands on - every host below is a signed observation

smartbrief.com

A / AAAA

141.193.213.20141.193.213.21

Cloudflareserves the site

ns-1516.awsdns-61.orgns-1609.awsdns-09.co.ukns-382.awsdns-47.comns-774.awsdns-32.net

awsdns-61.org + awsdns-09.co.uk + moreanswers its DNS

corpmail.smartbrief.com

smartbrief.comreceives its email

TLS

smartbrief.com

Let's Encryptissued its certificate

DNS Records

A 2

141.193.213.20
141.193.213.21

MX 1

10corpmail.smartbrief.com

TXT 11

c4q83n1ci10sm4575gtpr7ntp3
facebook-domain-verification=yf9mnkugbque78djh484z44mkmzdab
globalsign-domain-verification=B449806DAABB063F0EA4421D71E2728B
globalsign-domain-verification=F4B916AC94E63A18B0175F4A24988C8C
google-site-verification=hSIjbroCEJRHm54jImz9HBKGY2WmGQ2RE0SvrmYiBAg
google-site-verification=xH1kY6rhcpWahVe41k9Ga6VuHrOr9-l68oDxF-bwr7A
google-site-verification=xmELWuiQrKVQirHo5Ad-GoZoMWVaX9RpZKyX9v1xWrw
v=spf1 include:_spf.smartbrief.com -all
yahoo-verification-key=C62JK6fMG9JqCam0KynIQZPje8GPGQEFfP7ZQ5hvEi8=
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

NS 4

ns-1516.awsdns-61.org
ns-1609.awsdns-09.co.uk
ns-382.awsdns-47.com
ns-774.awsdns-32.net

SOA 1

ns-1609.awsdns-09.co.uk awsdns-hostmaster.amazon.com

TLS Certificates (4)

Common Name	Issuer	Expires
`smartbrief.com`	C=US, O=Let's Encrypt, CN=YE2	Fri, 02 Oct 2026 10:55:44 +0000
`YE2`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (0)

None observed.

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 smartbrief.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_2c6e1d95a0d01c81
Output Hash: 09f9caa40930a8e9f02af068cce5ea6054a71e88fdca74de004fdcfd1439dd53
Signature: ed25519:6d6b44b2b8c76d6510ae184c27f1653bd8073aeea1397f4a40e5b4720ef03426fc1fb6c50c50ed16f5fd3193a17b0a25ac4a2b996d56860e4c983f8c28405a05
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/smartbrief.com