ntp.org

Observed Jul 27, 2026, 10:10 UTC (5d 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 onDEFT

Secured byLet's Encrypt

Registered withTucows Domains Inc.

Also usesGoogle Search Console

IPv6 · tranco_1k

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

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

ntp.org

A / AAAA

204.93.207.22209.148.110.2462001:1838:2000:41b::80:0

DEFTserves the site

dns1.udel.eduns1.everett.organyns.pch.netdns2.udel.edu

udel.edu + everett.org + moreanswers its DNS

mx0.chi1.ntfo.org

ntfo.orgreceives its email

TLS

ntp.org

Let's Encryptissued its certificate

DNS Records

A 2

204.93.207.22
209.148.110.246

AAAA 1

2001:1838:2000:41b::80:0

MX 1

10mx0.chi1.ntfo.org

TXT 9

google-site-verification=1BTIwQr05WxuBXsED2L-cWc-cC7_8NDYKoWMsmAyR3g
google-site-verification=ISMNEfck75SW97AiPz0acClFpICIejjA6F5ijoHccZM
_globalsign-domain-verification=O60kZMoa5mBPIKKqd9FSRXcGUhU6s3rzZHzWNLAlL7
v=spf1 a mx ip4:204.93.207.0/27 ip4:66.220.13.234 ip4:66.220.13.237 ip6:2001:470:1:205::234 ip6:2001:470:1:205::/64 ~all
ntp-libera-310
v=DMARC1; p=quarantine; rua=mailto:xpvutgi3@ag.dmarcian.com; ruf=mailto:xpvutgi3@fr.dmarcian.com; sp=quarantine; pct=100
v=spf1 -all
v=spf1 -all
v=spf1 -all

NS 4

dns1.udel.edu
ns1.everett.org
anyns.pch.net
dns2.udel.edu

SOA 1

ns1.everett.org postmaster.ntp.org

TLS Certificates (3)

Common Name	Issuer	Expires
`ntp.org`	C=US, O=Let's Encrypt, CN=YR2	Tue, 01 Sep 2026 04:02:37 +0000
`YR2`	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 ntp.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_2a9282da83a97014
Output Hash: 296565dbeb6b29663d40502cf9cc2b325f05dc8418de6bd2dabb82eeef0ea8ad
Signature: ed25519:c44cc4d19676498dcb3eaee35f52403eacacc4a6105b314206380b5684eca843429c45678eb5d6ec8170d8200520ee54dadb505998a3e377aaff7cb0e86e1b0d
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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