do.co

Observed Jul 24, 2026, 03:39 UTC (7h 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

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search Console

tranco_40k

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

INFRASTRUCTURE MAPwhat do.co actually stands on - every host below is a signed observation

do.co

A / AAAA

67.199.248.1367.199.248.12

Cloudflareserves the site

kim.ns.cloudflare.comwalt.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more

Google Workspacereceives its email

TLS

do.co

Let's Encryptissued its certificate

DNS Records

A 2

67.199.248.13
67.199.248.12

MX 5

10aspmx.l.google.com
20alt1.aspmx.l.google.com
30alt2.aspmx.l.google.com
40aspmx2.googlemail.com
50aspmx3.googlemail.com

TXT 3

google-site-verification=bvpmA_UzHhTwGo6A9foXA_W20lUsPZ-UjY-pJDjdoPk
v=spf1 include:_spf.google.com include:mg-spf.greenhouse.io -all
v=DMARC1; p=reject; pct=100; rua=mailto:fdpfb1lo@ag.dmarcian.com; ruf=mailto:fdpfb1lo@fr.dmarcian.com

NS 2

kim.ns.cloudflare.com
walt.ns.cloudflare.com

SOA 1

kim.ns.cloudflare.com dns.cloudflare.com

CAA 12

iodef "mailto:security@digitalocean.com"
issue "comodoca.com"
issue "digicert.com; cansignhttpexchanges=yes"
issue "globalsign.com"
issue "letsencrypt.org"
issue "pki.goog; cansignhttpexchanges=yes"
issue "ssl.com"
issuewild "comodoca.com"
issuewild "digicert.com; cansignhttpexchanges=yes"
issuewild "letsencrypt.org"

TLS Certificates (3)

Common Name	Issuer	Expires
`do.co`	C=US, O=Let's Encrypt, CN=YR1	Wed, 09 Sep 2026 04:04:17 +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 (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 do.co. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_891c2a9c16a61fa8
Output Hash: 12b594da90257d19c9b978f200f801c728847c6da2407c21f9378a460f8b3d65
Signature: ed25519:dbc3aa2c519cc7d39205f480d6b6b09427a151de5cc852886cda75626adeeb9c382e492db0b0e86c397901701eab18ec7e13e6aecd90af6c9681b60ea6c23f0f
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/do.co