science.gov

Observed Jul 28, 2026, 17:52 UTC (13h 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 onESnet

Email byProofpoint

Secured bySectigo

Registered withget.gov

government_expanded

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

INFRASTRUCTURE MAPwhat science.gov actually stands on - every host below is a signed observation

science.gov

A / AAAA

192.107.175.71

ESnetserves the site

edns1.ultradns.bizedns1.ultradns.comedns1.ultradns.netedns1.ultradns.org

ultradns.biz + ultradns.com + moreanswers its DNS

mxa-001d2d01.gslb.gpphosted.commxb-001d2d01.gslb.gpphosted.com

Proofpointreceives its email

TLS

*.science.gov

Sectigo Limitedissued its certificate

DNS Records

A 1

192.107.175.71

MX 2

10mxa-001d2d01.gslb.gpphosted.com
10mxb-001d2d01.gslb.gpphosted.com

TXT 3

MS=ms55496101
v=spf1 ip4:192.107.175.91 ip4:192.107.175.93 ip4:205.254.128.11 ip4:205.254.128.12 ip4:205.254.128.13 ip4:205.167.107.4 ip4:205.167.107.5 include:spf.protection.outlook.com include:spf-001d2d01.gpphosted.com -all
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:mailadmin@science.gov,mailto:reports@dmarc.cyber.dhs.gov

NS 4

edns1.ultradns.biz
edns1.ultradns.com
edns1.ultradns.net
edns1.ultradns.org

SOA 1

edns1.ultradns.com premiumdns.support.neustar

TLS Certificates (3)

Common Name	Issuer	Expires
`*.science.gov`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36	Thu, 01 Oct 2026 23:59:59 +0000
`Sectigo Public Server Authentication CA DV R36`	C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46	Fri, 21 Mar 2036 23:59:59 +0000
`Sectigo Public Server Authentication Root R46`	C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority	Mon, 18 Jan 2038 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 science.gov. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_70e0f43bb8802038
Output Hash: bcb9d68d7d4f3c36a5f0630c35abb080b2bd37ebb7174f076434c566c278e2ac
Signature: ed25519:2c82561df3b5dc721035b54b3e8130b5aa170e3622395963e24ff514d42008c52fb50a8996c9ca5ea246e27015cc542e493c16cd50c9f621a2e8e7b00cf9610b
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/science.gov