post.com

Observed 2026-07-13T17:51:09.233Z (9h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

95 subdomains · fortune_500

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

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

post.com

A / AAAA

199.36.158.100

Cloudflareserves the site

pdns3.ultradns.orgpdns5.ultradns.infopdns2.ultradns.netpdns6.ultradns.co.uk+2 more

ultradns.org + ultradns.info + moreanswers its DNS

mx00.mail.commx01.mail.com

mail.comreceives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/3

TLS issuernot observed

Behind Cloudflareyes

Response time41 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 1

199.36.158.100

MX 2

10mx00.mail.com
10mx01.mail.com

TXT 3

hosting-site=post-landing-site
v=spf1 redirect=_spf.mail.com
v=DMARC1; p=quarantine; rua=mailto:dmarcreport@mail.com

NS 6

pdns3.ultradns.org
pdns5.ultradns.info
pdns2.ultradns.net
pdns6.ultradns.co.uk
pdns1.ultradns.net
pdns4.ultradns.org

SOA 1

udns1.ultradns.net ggorman.world.com

TLS Certificates (0)

None.

Subdomains (95)

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

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

Ed25519 Receipt

Receipt ID: 09259060-020e-4b72-8fe6-3c96581b81c6
Output Hash: d717b445ff880fe287f30336cb9899b7af12a1dc34cb2d998defa4c3195add0f
Signature: ed25519:2e39bface1865589b14cc6c46b4c16fefa78ae2b404dce9a1bd04b01770ccf694aa38abfdb185c3fc5f20d16c30a0c40236a756923361a4c4100b9216803f404
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/post.com