doi.gov

Observed 2026-07-14T01:27:13.354Z (20h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Registered withget.gov

IPv6 · 3 subdomains · government_expanded

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

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

doi.gov

A / AAAA

23.43.51.1023.43.51.152600:1406:5400::170f:f0b82600:1406:5400::170f:f0b3

Cloudflareserves the site

west.ns.cloudflare.comliz.ns.cloudflare.com

cloudflare.comanswers its DNS

doi-gov.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

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

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time29 ms

DNS resolutionNOERROR

Redirect chain

https://www.doi.gov/

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

DNS Records

A 2

23.43.51.10
23.43.51.15

AAAA 2

2600:1406:5400::170f:f0b8
2600:1406:5400::170f:f0b3

MX 1

0doi-gov.mail.protection.outlook.com

TXT 6

openai-domain-verification=dv-z1QahsCTwflXMhgtSZxfUNwf
v=spf1 include:spf.protection.outlook.com ip4:137.227.82.0/26 ip4:137.227.134.0/26 -all
_zvymuoe0192rlguzk6z1mjgg837vhpd
_6hn0jgfggckinomz4gkl4ybsiohpv2u
v=DMARC1;p=reject;rua=mailto:dmarc_reports@doi.gov,mailto:reports@dmarc.cyber.dhs.gov
v=DNSSEC1; (detected)

NS 2

west.ns.cloudflare.com
liz.ns.cloudflare.com

SOA 1

liz.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

Subdomains (3)

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 doi.gov. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: d1815f06-8a21-4887-9cee-c16e16d53e7a
Output Hash: 5d018fa59a4719d314c68babe9718dec34c62d3a5a7c6326b75cae83b145a15f
Signature: ed25519:b061d09bd1dac2da9939b47f76abcfd4ad33dd38081c9595653a32159ba12d9933a551e5cdaa9f2cb95e365a2caa89a63e9fef843d65547b19af0305a2d43a03
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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