usegroup.com

Observed Jul 25, 2026, 12:03 UTC (8d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Not responding

Email byGoogle (SPF sender)

Also usesFacebook/MetaGoogle Search Console

tranco

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

INFRASTRUCTURE MAPwhat usegroup.com actually stands on - every host below is a signed observation

usegroup.com

A / AAAA

172.84.144.106

unattributedserves the site

ns4.chs.harvard.eduns12.usegroup.comns14.usegroup.comns3.chs.harvard.edu

harvard.edu + usegroup.comanswers its DNS

mail.usegroup.com

Google (SPF sender)receives its email

DNS Records

A 1

172.84.144.106

MX 1

10mail.usegroup.com

TXT 6

v=spf1 ip4:172.84.144.101 ip4:172.84.144.117 include:_spf.google.com -all
google-site-verification=WVE3aEBo1-G-pc2uJFaAGAw9PYfixbT7oZqATIgmWCc
qcsd7g6isdrpj8f9oldbn8nhek
facebook-domain-verification=310du3ytdsahywoji5kber8geezpon
v=DMARC1; p=quarantine; sp=none; adkim=s; fo=1; ri=86400; rua=mailto:dkim-support@usegroup.com; ruf=mailto:dkim-support@usegroup.com
v=STSv1; id=20260329001

NS 4

ns4.chs.harvard.edu
ns12.usegroup.com
ns14.usegroup.com
ns3.chs.harvard.edu

SOA 1

ns3.chs.harvard.edu localhost

TLS Certificates (0)

None.

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 usegroup.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_9024ca8a14306106
Output Hash: cb5828238d2f24cb186b1fcc9882c2d2ff170c367aa2c464831ad5a1e08bacd2
Signature: ed25519:0b73000dee582229431b5016da05ed31cbc8c7a0573e72b0fb21ac9b0d0e5b7989d7f2c7f9fc303b0f17fdb10d1c25d6e1b2e1f9d37259dc45967ce810b86708
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/usegroup.com