CONTINUOUS INTERNET TELEMETRY24H DRIFT2,060 material changesacross 1,871 domains · -491 vs yesterdayDNS DRIFT20 domains changed DNS providertop destination parity.domains · +4 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination google.com · -2 vs yesterdayCERT DRIFT2 domains switched issuing CA24h · -3 vs yesterdayNOW3,410 curated domains not answeringlast probe, steadyERRORS10,889 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT2,060 material changesacross 1,871 domains · -491 vs yesterdayDNS DRIFT20 domains changed DNS providertop destination parity.domains · +4 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination google.com · -2 vs yesterdayCERT DRIFT2 domains switched issuing CA24h · -3 vs yesterdayNOW3,410 curated domains not answeringlast probe, steadyERRORS10,889 responded with an errorlast probe · 5xx / 404 / 429 / 403

postfix.org

Observed 2026-07-14T17:34:45.193Z (1h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
Registered withTucows Domains Inc.
IPv6 · 1 subdomain · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat postfix.org actually stands on - every host below is a signed observation
postfix.org
A / AAAA
95.216.145.12a01:4f9:c010:8fb::bee
Cloudflareserves the site
NS
ns1.desec.ions2.desec.org
desec.io + desec.organswers its DNS
MX
list.sys4.de
sys4.dereceives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.postfix.org/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time558 ms
DNS resolutionNOERROR
Redirect chain
https://www.postfix.org/

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

DNS Records

A 1

  • 95.216.145.1

AAAA 1

  • 2a01:4f9:c010:8fb::bee

MX 1

  • 10list.sys4.de

TXT 2

  • v=spf1 include:_spf.list.sys4.de ~all
  • v=DNSSEC1; (detected)

NS 2

  • ns1.desec.io
  • ns2.desec.org

SOA 1

  • get.desec.io get.desec.io

TLS Certificates (0)

None.

Subdomains (1)

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

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

Ed25519 Receipt

Receipt ID
d6303810-24a6-4237-ab6c-ca980982c90c
Output Hash
8ee4e428adc9fd0c95856abc7696c1cb6482fad6e0329fadf78802740e1f0486
Signature
ed25519:a7bd7255401ff87fa866208d09c9d7bbe26bea6bf34e317fdefbb953ffb2638b013bf6a847a40b6ab93c8aad5cc402b0612d8cda3f9ecb9d0de9eb1ceab36c0f
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser