udsp.io
Observed 2026-07-13T12:07:36.384Z (9h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byGoogle (SPF sender)
4 subdomains · tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat udsp.io actually stands on - every host below is a signed observation
udsp.io
A / AAAA
185.215.4.35
Cloudflareserves the site
NS
d.ns.selectel.rua.ns.selectel.ruc.ns.selectel.rub.ns.selectel.ru
selectel.ruanswers its DNS
HTTPS probe
ok
Responding normally (2xx) 200 OK
HTTP status200
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time994 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
185.215.4.35
TXT 1
v=spf1 mx ip4:136.243.139.188/32 include:_spf.google.com include:spf.mandrillapp.com include:servers.mcsv.net ~all
NS 4
d.ns.selectel.rua.ns.selectel.ruc.ns.selectel.rub.ns.selectel.ru
SOA 1
a.ns.selectel.ru support.selectel.ru
CAA 1
issue letsencrypt.org
TLS Certificates (0)
None.
Subdomains (4)
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
45eca875-072e-4a1a-b3fd-f248475efae5- Output Hash
8c9cf810980acf120e28a8e3ad0352ba672dfc1c877c05f611ab680016ea15db- Signature
ed25519:7a8b2fd94876387b010c5eb736044f745bf0a463145650e20ab203147760c40a3ae0379a5a2d0148ea69907643388ec3f95894e24587feab193f6db68e6a360e- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast