simperium.com

Observed 2026-07-12T20:58:46.993Z (20h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMailgun

Registered withMarkMonitor Inc.

6 subdomains · tranco_5k

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

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

simperium.com

A / AAAA

192.0.84.247

Cloudflareserves the site

ns3.automattic.comns2.automattic.comns1.automattic.com

automattic.comanswers its DNS

mx2.ams.automattic.commx1.dfw.automattic.com

Mailgunreceives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time191 ms

DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

192.0.84.247

MX 2

10mx2.ams.automattic.com
10mx1.dfw.automattic.com

TXT 2

v=spf1 include:_spf.automattic.com include:mailgun.org ~all
v=DMARC1; p=quarantine; pct=10; rua=mailto:0bqp2jnw@ag.dmarcian.com; ruf=mailto:0bqp2jnw@fr.dmarcian.com;

NS 3

ns3.automattic.com
ns2.automattic.com
ns1.automattic.com

SOA 1

ns1.automattic.com hostmaster.automattic.com

CAA 1

issuewild letsencrypt.org;validationmethods=dns-01;accounturi=https://acme-v02.api.letsencrypt.org/acme/acct/36334489

TLS Certificates (0)

None.

Subdomains (6)

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

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

Ed25519 Receipt

Receipt ID: a5b37756-5f61-4186-950d-adbd2c042049
Output Hash: c7d9d67a1177d7be4238eb131c4032939a3327272e82295cf6443b607e7e01da
Signature: ed25519:c7310cda5d1d69bd621dbd62b31f16b9cbde7fa71835648de01a161f7e2e51ff843f3818135f6f7c435b0024af0e012f08c09fcffd4bfb7b4061e292b82de005
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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