eff.org

Observed 2026-07-15T09:23:46.283Z (10h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Registered withGandi SAS

Also usesGoogle Search Console

7 subdomains · non_profit

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

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

eff.org

A / AAAA

173.239.79.200

Cloudflareserves the site

ns1.eff.orgns2.eff.orgns4.eff.org

eff.organswers its DNS

eff-org.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.eff.org/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time77 ms

DNS resolutionNOERROR

Redirect chain

https://www.eff.org/

MCP This domain advertises an AI service endpoint at _mcp._tcp.

v=spf1 a -all

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

DNS Records

A 1

173.239.79.200

MX 1

0eff-org.mail.protection.outlook.com

TXT 5

v=spf1 mx ip4:173.239.79.202 include:spf1.eff.org include:spf2.eff.org include:spf.protection.outlook.com include:salsalabs.org -all
google-site-verification=Xqf-4VNlMzsu7X8mmX33O3jdZcvFavWtZen9xLBZ5S4
ms-domain-verification=55064e24-4bc6-4f21-a39c-f9c0b295f3f3
v=DMARC1; p=none; rua=mailto:dmarc_rua@eff.org; ruf=mailto:dmarc_ruf@eff.org;
v=spf1 a -all

NS 3

ns1.eff.org
ns2.eff.org
ns4.eff.org

SOA 1

ns1.eff.org hostmaster.eff.org

CAA 7

issuewild ssl.com
issue comodoca.com
issue letsencrypt.org
issuewild comodoca.com
issuewild letsencrypt.org
iodef mailto:caa@eff.org
issue ssl.com

TLS Certificates (0)

None.

Subdomains (7)

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 eff.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 178054a7-3de0-4851-9ab6-7821c0ac6032
Output Hash: c2ad508776634a60829dfb944622dc624f2f45d57882de9b3141822009de2442
Signature: ed25519:954771b49d6b74f4d7cc588269bf583c2e326a4e4f7b7e09d4458286efb5df76daeed4781c5380949ab8052783b7c8e10f2c611ffa609f166dd2f675417b2902
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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