duosmium.org

Observed Jul 28, 2026, 13:08 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

Secured byLet's Encrypt

Also usesGoogle Search Console

IPv6 · 1 subdomain · domcop

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

INFRASTRUCTURE MAPwhat duosmium.org actually stands on - every host below is a signed observation

duosmium.org

A / AAAA

18.208.88.15798.84.224.1112600:1f18:16e:df01::2582600:1f18:16e:df01::259

2600serves the site

heidi.ns.cloudflare.comjakub.ns.cloudflare.com

cloudflare.comanswers its DNS

isaac.mx.cloudflare.netlinda.mx.cloudflare.netamir.mx.cloudflare.net

cloudflare.netreceives its email

TLS

www.duosmium.org

Let's Encryptissued its certificate

DNS Records

A 2

18.208.88.157
98.84.224.111

AAAA 2

2600:1f18:16e:df01::258
2600:1f18:16e:df01::259

MX 3

37isaac.mx.cloudflare.net
37linda.mx.cloudflare.net
43amir.mx.cloudflare.net

TXT 4

v=spf1 include:_spf.mx.cloudflare.net ~all
google-site-verification=P5qkoVx6am_2oXuxtkFysY21BowHnwdH_fdqFkV4Opc
v=DMARC1; p=quarantine; rua=mailto:1e4b6503ce9a4df5a7c9af7e19023ee8@dmarc-reports.cloudflare.net,mailto:duosmium@gmail.com
v=BIMI1;l=https://www.duosmium.org/images/icon.svg;

NS 2

heidi.ns.cloudflare.com
jakub.ns.cloudflare.com

SOA 1

heidi.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common Name	Issuer	Expires
`www.duosmium.org`	C=US, O=Let's Encrypt, CN=YE2	Thu, 01 Oct 2026 19:53:50 +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 (1)

www.duosmium.org

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 duosmium.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_45bd6f859f935ac2
Output Hash: bb1173e2132020d4b1e4c5dbc5bd267f70f98b80e7d9f274f4f04a305282aff7
Signature: ed25519:89b541fa137706da21b94b1efefcdb5abda2d484b8a4b59754ac77f1f81e29868d0daf56b3a7542a6c99a1031d0574e27186454aaac6d05438f75c9df3035109
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/duosmium.org