utlsf.org

Observed Jul 27, 2026, 20:18 UTC (6d 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

Up right now

Email byGoogle Workspace

Secured byLet's Encrypt

domcop

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

INFRASTRUCTURE MAPwhat utlsf.org actually stands on - every host below is a signed observation

utlsf.org

A / AAAA

35.212.49.87

unattributedserves the site

ns2.siteground.netns1.siteground.net

siteground.netanswers its DNS

aspmx2.googlemail.comaspmx3.googlemail.comalt2.aspmx.l.google.comaspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

*.utlsf.org

Let's Encryptissued its certificate

DNS Records

A 1

35.212.49.87

MX 5

10aspmx2.googlemail.com
10aspmx3.googlemail.com
5alt2.aspmx.l.google.com
1aspmx.l.google.com
5alt1.aspmx.l.google.com

TXT 2

v=spf1 +a +mx +ip4:35.212.53.37 include:utlsf.org.spf.auto.dnssmarthost.net ~all
v=DMARC1; p=none; aspf=r; adkim=r;

NS 2

ns2.siteground.net
ns1.siteground.net

SOA 1

ns1.siteground.net root.giowm1053.siteground.biz

TLS Certificates (3)

Common Name	Issuer	Expires
`*.utlsf.org`	C=US, O=Let's Encrypt, CN=YR1	Thu, 27 Aug 2026 01:23:32 +0000
`YR1`	C=US, O=ISRG, CN=Root YR	Sat, 02 Sep 2028 23:59:59 +0000
`Root YR`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +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 utlsf.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_e5f47827b77c8dc1
Output Hash: dfc8d6247818cc6ec14c56e9a324aa8c6af2ff5c045eb6f222c3f9156f3b7ff2
Signature: ed25519:15904087fc6eda64adf3d3887bf64c9fb41563fd7fa3b565ac05b05716129d14a6ff433a82a20431252daa2debc0918ac26e394873db1630fbfbe418c9865805
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/utlsf.org