science.gov

Observed 2026-07-12T19:30:41.781Z (13h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byProofpoint

1 subdomain · 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

Cloudflareserves the site

edns1.ultradns.bizedns1.ultradns.orgedns1.ultradns.netedns1.ultradns.com

ultradns.biz + ultradns.org + moreanswers its DNS

mxb-001d2d01.gslb.gpphosted.commxa-001d2d01.gslb.gpphosted.com

Proofpointreceives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.science.gov/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time169 ms

DNS resolutionNOERROR

Redirect chain

https://www.science.gov/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

192.107.175.71

MX 2

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

TXT 4

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
MS=ms55496101
v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:mailadmin@science.gov,mailto:reports@dmarc.cyber.dhs.gov
v=DNSSEC1; (detected)

NS 4

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

SOA 1

edns1.ultradns.com premiumdns.support.neustar

TLS Certificates (0)

None.

Subdomains (1)

www.science.gov

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: 26d9c44c-7595-4257-9c03-25a6cbca2db9
Output Hash: f3b045a46357a3bf7cbe793b499e1c63b8fc15c4196a5e55a4fc852143b01da2
Signature: ed25519:e4aded19d9827c73c19738c74ae44a711b134a5faf86789b4063bd9202c3a9f988ce7a459295b5428b2c3c6d93bcc816edcfa868e400d44342119e081bef9e0e
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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