ntfy.sh

Observed Jul 22, 2026, 01:06 UTC (2d 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

IPv6 · tranco_40k

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

INFRASTRUCTURE MAPwhat ntfy.sh actually stands on - every host below is a signed observation

ntfy.sh

A / AAAA

159.203.148.752604:a880:800:14:0:1:73c0:2000

2604serves the site

ns-1406.awsdns-47.orgns-1760.awsdns-28.co.ukns-221.awsdns-27.comns-688.awsdns-22.net

awsdns-47.org + awsdns-28.co.uk + moreanswers its DNS

mx1.ntfy.sh

ntfy.shreceives its email

TLS

ntfy.sh

Let's Encryptissued its certificate

DNS Records

A 1

159.203.148.75

AAAA 1

2604:a880:800:14:0:1:73c0:2000

MX 1

10mx1.ntfy.sh

TXT 2

android-cert-signature-sha256=6e145d7ae685eff75468e5067e03a6c3645453343e4e181dac8b6b17ff67489d
apt-key-fingerprint=55ba774a6f5ee67431e4b6b7cfdb962d4f1ec4af

NS 4

ns-1406.awsdns-47.org
ns-1760.awsdns-28.co.uk
ns-221.awsdns-27.com
ns-688.awsdns-22.net

SOA 1

ns-221.awsdns-27.com awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common Name	Issuer	Expires
`ntfy.sh`	C=US, O=Let's Encrypt, CN=YR1	Fri, 09 Oct 2026 08:12:41 +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 ntfy.sh. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_c526ab01c8dbac85
Output Hash: 28508a38d692280a5075429810e0c8d4305a751508c5884c92d9533b325d5509
Signature: ed25519:3d8e2cfaa531ce4ce91246e41af98274895a2c635719962e088cdd84dd67cd0bda02e655f773caea38d3967d19847d815dceb41fa6c7600f60e30f29cf122b06
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/ntfy.sh