gnu.org
Observed 2026-07-12T20:08:24.341Z (7h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
IPv6 · 9 subdomains · tranco_1k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat gnu.org actually stands on - every host below is a signed observation
gnu.org
A / AAAA
209.51.188.1162001:470:142:5::116
Cloudflareserves the site
NS
ns1.gnu.orgns2.gnu.orgns4.gnu.org
gnu.organswers its DNS
MX
eggs.gnu.org
gnu.orgreceives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.gnu.org/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time4475 ms
DNS resolutionNOERROR
Redirect chain
https://www.gnu.org/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
209.51.188.116
AAAA 1
2001:470:142:5::116
MX 1
10eggs.gnu.org
TXT 2
v=spf1 ip4:209.51.188.0/24 ip6:2001:470:142::/48 ip4:18.4.89.21 ip4:15.204.209.91 ip6:2604:2dc0:101:200::1d07 -allv=DMARC1; p=none; rua=mailto:dmarc-rua@fsf.org
NS 3
ns1.gnu.orgns2.gnu.orgns4.gnu.org
SOA 1
ns1.gnu.org hostmaster.gnu.org
CAA 1
issue letsencrypt.org
TLS Certificates (0)
None.
Subdomains (9)
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 receiptEd25519 Receipt
- Receipt ID
0286a995-2b04-452a-8e13-e80de981ff2a- Output Hash
8b7d1f566aef751062332ad60889243913947371832434652739392fae00dc05- Signature
ed25519:04ed4e464b253f66cf81670cb0b390db1d3335401eebd7ce5d40d8d2cf2c0c937dc883a135db782cb7d65dc95b0e35de1a9dc60d7458b70ec625139ff0328204- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast