criterion.com

Observed 2026-07-14T06:04:28.349Z (21h ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Runs onCloudflare

Email byGoogle Workspace

Registered withGoDaddy.com, LLC

Also usesGoogle Search Console

IPv6 · 7 subdomains · push_legacy

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

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

criterion.com

A / AAAA

172.66.40.190172.66.43.662606:4700:3108::ac42:2b422606:4700:3108::ac42:28be

Cloudflareserves the site

serenity.ns.cloudflare.comdonovan.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx4.googlemail.comaspmx.l.google.comalt1.aspmx.l.google.comaspmx2.googlemail.com+3 more

Google Workspacereceives its email

HTTPS probe

bot_blocked Blocked our probe (WAF / bot protection) 403 blocked by cloudflare - bot protection active

HTTP status403

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time5 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 2

172.66.40.190
172.66.43.66

AAAA 2

2606:4700:3108::ac42:2b42
2606:4700:3108::ac42:28be

MX 7

30aspmx4.googlemail.com
10aspmx.l.google.com
20alt1.aspmx.l.google.com
30aspmx2.googlemail.com
30aspmx3.googlemail.com
20alt2.aspmx.l.google.com
30aspmx5.googlemail.com

TXT 4

v=spf1 a mx include:mailgun.org ip4:72.46.233.164 ip4:64.90.180.59 ip4:167.206.4.0/22 ip4:74.201.255.11 include:_spf.google.com include:servers.mcsv.net ~all
google-site-verification=oEWEYCM32OcZJSOXVbV9T2D0bYfPnCkNEU4sLYkk7II
google-site-verification=dlCxmPh7hANd93GYc3JRFCjD1vIdiy4qy5IyBSorzsY
v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:f5b5104e@dmarc.mailgun.org,mailto:97b24643@inbox.ondmarc.com; ruf=mailto:f5b5104e@dmarc.mailgun.org,mailto:97b24643@inbox.ondmarc.com;

NS 2

serenity.ns.cloudflare.com
donovan.ns.cloudflare.com

SOA 1

donovan.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

Subdomains (7)

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

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

Ed25519 Receipt

Receipt ID: d5b7b170-2d83-40aa-9ab7-37a88c3b29fa
Output Hash: e0db19360ea5b927f76ee360878884a31e07337e60d29a06af9bf59b452b48b3
Signature: ed25519:15c4a6f9efc608160cb9411360c34550c42bd9b521ae7172c55cf4ec0ee423bf745f55d1ad98724f0b6334892e464cdde8f78a03494533724d86c94dc5720d05
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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