tetr.io

Observed 2026-07-17T13:52:35.925630845+00:00 (18h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Secured byGoogle Trust Services

Also usesGoogle Search Console

IPv6 · tranco_40k

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

INFRASTRUCTURE MAPwhat tetr.io actually stands on - every host below is a signed observation

tetr.io

A / AAAA

104.26.4.36104.26.5.36172.67.74.1152606:4700:20::681a:524+2 more

Cloudflareserves the site

jillian.ns.cloudflare.comkeaton.ns.cloudflare.com

cloudflare.comanswers its DNS

mail.osk.sh

osk.shreceives its email

TLS

tetr.io

Google Trust Servicesissued its certificate

DNS Records

A 3

104.26.4.36
104.26.5.36
172.67.74.115

AAAA 3

2606:4700:20::681a:524
2606:4700:20::ac43:4a73
2606:4700:20::681a:424

MX 1

10mail.osk.sh

TXT 3

google-site-verification=lGb4ibloHjDHc-oulmQz63Led2tW_Xb1zXSIns1eGN0
v=spf1 mx -all
v=DMARC1; p=quarantine; rua=mailto:postmaster@osk.sh

NS 2

jillian.ns.cloudflare.com
keaton.ns.cloudflare.com

SOA 1

jillian.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`tetr.io`	C=US, O=Google Trust Services, CN=WE1	Fri, 25 Sep 2026 19:15:25 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA	Fri, 28 Jan 2028 00:00:42 +0000

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 tetr.io. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: c2e1ec31-facc-452d-8ab5-a674a03c1c8f
Output Hash: fd7a933e1fd1ed688f1dc17847190f6a63ce601ef05fccf1abab8eb04851fe9b
Signature: ed25519:fa42311feba38c34a57a36f65b9c801d2157c3b56cdbdb06134f608b5466fead2a8dca55223f7ce603ac2a823fb88e8f2fa7fa569ed46e50a9ca4bb91656af0b
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/tetr.io