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do.co

Observed Jul 22, 2026, 01:20 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
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
NS
kim.ns.cloudflare.comwalt.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
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 NameIssuerExpires
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.

DomainDrift signed-observation badge for do.co <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_4a248cf51b7a832d
Output Hash
e80b27263a9999558cbc366b8039e1a3e5aa2e15ad50eac3f574b8ed93385548
Signature
ed25519:d2ad7cc52609e66e0ffa5b7198eec1795099d81a298f5622584dd42bcdb828ffd0e250977429759caac8092e89f1d3321f21f12ad33f5e554c7fdfbe56ef110b
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
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