groups.io

Observed 2026-07-13T04:19:40.527Z (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Also usesGoogle Search Console

26 subdomains · tranco_20k

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

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

groups.io

A / AAAA

173.255.221.19445.79.81.153

Cloudflareserves the site

dns1.groups.iodns2.groups.io

groups.ioanswers its DNS

lb01.groups.iolb02.groups.io

groups.ioreceives its email

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time143 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 2

173.255.221.194
45.79.81.153

MX 2

10lb01.groups.io
10lb02.groups.io

TXT 3

google-site-verification=cIdgZ-hBu3RiSGae0xG2qUDmQY5hS3dsg6qUGxAZjaE
v=spf1 include:_spf.groups.io -all
v=DMARC1;p=none;sp=none;rua=mailto:dmarcreport@groups.io;ruf=mailto:dmarcfailure@groups.io

NS 2

dns1.groups.io
dns2.groups.io

SOA 1

dns1.groups.io hostmaster.groups.io

CAA 1

issue letsencrypt.org

TLS Certificates (0)

None.

Subdomains (26)

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

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

Ed25519 Receipt

Receipt ID: de8c48ae-a26d-4f13-bdb9-cdd454746676
Output Hash: 7650fe9921e0ee1f6d8c5bfd030d30212ac0849679e472bc026d7826f34ecb33
Signature: ed25519:05bf648cd6385a351e962f171dcac1da3031e60463bee3ae97a0bfa01f01d2617457114c3b683e6b55825972d28f7818461f66f0e1e6cb31fe598eb5e609a006
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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