facebook.fi
Observed 2026-07-15T12:45:38.197Z (2d ago). Every field below was attested with an Ed25519 signature at scan time.
Not responding
Runs onCloudflare
IPv6 · 1 subdomain · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat facebook.fi actually stands on - every host below is a signed observation
facebook.fi
A / AAAA
57.144.220.1412a03:2880:f36e:8d:face:b00c:0:2
Cloudflareserves the site
NS
a.ns.facebook.comc.ns.facebook.comd.ns.facebook.comb.ns.facebook.com
facebook.comanswers its DNS
HTTPS probe
server_error
Server error (5xx) 526 Server Error
HTTP status526
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time436 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
57.144.220.141
AAAA 1
2a03:2880:f36e:8d:face:b00c:0:2
TXT 1
v=spf1 -all
NS 4
a.ns.facebook.comc.ns.facebook.comd.ns.facebook.comb.ns.facebook.com
SOA 1
a.ns.facebook.com dns.facebook.com
TLS Certificates (0)
None.
Subdomains (1)
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
19481c74-042f-445d-9470-ef8d32e7db4b- Output Hash
da45fd1f5e57b9a1e20fedade93ff2b1b91770d357e030bf21aafef793b5c7f0- Signature
ed25519:75c2371b862dd8b9984bf78b70d3b06c98200788f24723645c4c88cbe5b8a3558306b9f49a29e4589d65da519ec633b4672c5bd93be34ae06d1d3e9041794902- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast