fsf.org

Observed 2026-07-13T00:04:45.230894235+00:00 (9h ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Runs onFree Software Foundation

Registered withGandi SAS

IPv6 · open_source

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

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

fsf.org

A / AAAA

209.51.188.1742001:470:142:4::a

Free Software Foundationserves the site

ns1.gnu.orgns2.gnu.orgns4.gnu.org

gnu.organswers its DNS

mail.fsf.org

fsf.orgreceives its email

DNS Records

A 1

209.51.188.174

AAAA 1

2001:470:142:4::a

MX 1

10mail.fsf.org

TXT 3

v=spf1 redirect=gnu.org
libera-asq123s
v=DMARC1; p=none; rua=mailto:dmarc-rua@fsf.org

NS 3

ns1.gnu.org
ns2.gnu.org
ns4.gnu.org

SOA 1

ns1.gnu.org hostmaster.gnu.org

SRV 2

jabber.fsf.org:5222 p0
jabber.fsf.org:5269 p0

CAA 2

issue "letsencrypt.org"
issuewild "letsencrypt.org"

TLS Certificates (0)

None.

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

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

Ed25519 Receipt

Receipt ID: 829dfeaf-800a-4000-a023-223a621699b0
Output Hash: 19e411b819a50278bdecb16170c14aa51a514deff6a7be3671a15d1a6f86d15d
Signature: ed25519:da25ec13e4a70548f37aa288d07fe8c6599c6472fbcb5163d569dd25edbdc6f9daeae1822774a44d4574dd7f0d50c5f78b54c42156ec430464a845b75a4c2502
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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