postcrossing.com

Observed Jul 22, 2026, 01:21 UTC (22h 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 onAmazon

Email byGoogle Workspace

Secured byAmazon

Registered withCSL Computer Service Langenbach GmbH d/b/a joker.com

Also usesFacebook/MetaGoogle Search Console

tranco_40k

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

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

postcrossing.com

A / AAAA

63.186.120.237

Amazonserves the site

brett.ns.cloudflare.comparis.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

postcrossing.com

Amazonissued its certificate

DNS Records

A 1

63.186.120.237

MX 5

1aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com

TXT 9

brave-ledger-verification=c3ee5582e649a7dd8102c1f133ff0c4439a970e401d1db4cf5aa466338f09e87
facebook-domain-verification=qdgtd93f8937m03t8jh8icqbyqan1x
google-site-verification=q-Meyg1FsWiKKanaFUqmFEPYQ9zsGisUb7iGKRhst-Q
mailru-verification: f000919f10121133
v=spf1 a:customs.postcrossing.com a:postino.postcrossing.com a:mail-fallback.postcrossing.com a:forum.postcrossing.com include:_spf.google.com include:shops.shopify.com -all
v=DMARC1; p=quarantine; fo=1;
v=spf1 include:postcrossing.com -all
v=STSv1; id=201905041;
v=spf1 include:postcrossing.com -all

NS 2

brett.ns.cloudflare.com
paris.ns.cloudflare.com

SOA 1

brett.ns.cloudflare.com dns.cloudflare.com

CAA 13

iodef "mailto:webmaster+caa@postcrossing.com"
issue "amazon.com"
issue "comodoca.com"
issue "digicert.com; cansignhttpexchanges=yes"
issue "letsencrypt.org"
issue "pki.goog; cansignhttpexchanges=yes"
issue "ssl.com"
issuewild "amazon.com"
issuewild "comodoca.com"
issuewild "digicert.com; cansignhttpexchanges=yes"

TLS Certificates (3)

Common Name	Issuer	Expires
`postcrossing.com`	C=US, O=Amazon, CN=Amazon RSA 2048 M04	Sun, 15 Nov 2026 23:59:59 +0000
`Amazon RSA 2048 M04`	C=US, O=Amazon, CN=Amazon Root CA 1	Fri, 23 Aug 2030 22:26:35 +0000
`Amazon Root CA 1`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2	Thu, 31 Dec 2037 01:00:00 +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 postcrossing.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_b10c6521d1987bea
Output Hash: 9507a66a4db272138724e7e31c0f30f16838863490caa45bba6bc01f3992796d
Signature: ed25519:e511bfe2db23e9642a58cb6252b4e3041a2524351d3864bbd48c70db2b85f8bbb862bf2abfc14cb64af13f6185a7491e5dee61bdbe210961f1645344cadd320c
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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