uspto.gov

Observed Jul 21, 2026, 20:06 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

Runs onCloudflare

Email byMicrosoft 365

Secured byGoogle Trust Services

Registered withget.gov

Also usesFacebook/MetaGoogle Search Console

IPv6 · tranco_5k

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

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

uspto.gov

A / AAAA

104.18.35.192172.64.152.642a06:98c1:3101::6812:23c02a06:98c1:310c::ac40:9840

Cloudflareserves the site

gold.foundationdns.comgold.foundationdns.netgold.foundationdns.org

foundationdns.com + foundationdns.net + moreanswers its DNS

uspto-gov.mail.protection.outlook.com

Microsoft 365receives its email

TLS

uspto.gov

Google Trust Servicesissued its certificate

DNS Records

A 2

104.18.35.192
172.64.152.64

AAAA 2

2a06:98c1:3101::6812:23c0
2a06:98c1:310c::ac40:9840

MX 1

5uspto-gov.mail.protection.outlook.com

TXT 16

MS=ms28666523
_ib4pu1ottna05el605hns0p62bwkg2g
_qf2w9oo2ieh425rh0b6gjpp829vih2b
apple-domain-verification=DQ6lsHErU2gvVyqF
jetbrains-domain-verification=8sj6e0d8s6q4fvu86jcfzp0g5
facebook-domain-verification=6wqv4rmxkothypv5gij5080967l5ws
ms-domain-verification=725c3c35-24ef-43fd-a26b-2736d7cea1a6
perplexity-ai-domain-verification-7tdkgd=M7VyHULqPpVV3g4SsM4BNc1mR
webexdomainverification.7PUPU=2a587b5a-c181-4a6c-9d10-a13dcaa747bd
google-site-verification=5eOb2YylR8fDTIkmIs3N0CaJ_IHjjikNS-Z7BDb9jvw

NS 3

gold.foundationdns.com
gold.foundationdns.net
gold.foundationdns.org

SOA 1

gold.foundationdns.com dns.cloudflare.com

SRV 4

vcsexpresswayprimary.uspto.gov:5060 p10
vcsexpresswaysecondary.uspto.gov:5060 p10
vcsexpresswayprimary.uspto.gov:5061 p10
vcsexpresswaysecondary.uspto.gov:5061 p10

CAA 6

issue "amazon.com"
issue "amazonaws.com"
issue "amazontrust.com"
issue "awstrust.com"
issue "digicert.com"
issue "pki.goog"

TLS Certificates (3)

Common Name	Issuer	Expires
`uspto.gov`	C=US, O=Google Trust Services, CN=WE1	Thu, 24 Sep 2026 01:42:23 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA	Fri, 28 Jan 2028 00:00:42 +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 uspto.gov. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_bfb9b988751193f0
Output Hash: 01f478a82914f4bc0100f89085ccf84a84c4c6eca37493ef0c9c3a9400f0849e
Signature: ed25519:5789ad1c20b45c6bbbb6b32697847ba9fb0134cd01e12c4dde1a1eac7e2ee78d606186ed60f911691c38c08b34725ed558f9e2ff68510722d25a8e9a3d18e401
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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