signup.com

Observed 2026-07-17T14:04:27.512323124+00:00 (18h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byGoogle Workspace

Secured byAmazon

Registered withGoDaddy.com, LLC

Also usesFacebook/Meta

4 subdomains · tranco_40k

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

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

signup.com

A / AAAA

32.193.55.743.231.62.239

Amazonserves the site

ns11.constellix.comns21.constellix.comns31.constellix.comns41.constellix.net+2 more

constellix.com + constellix.netanswers its DNS

aspmx2.googlemail.comalt2.aspmx.l.google.comaspmx3.googlemail.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

signup.com

Amazonissued its certificate

DNS Records

A 2

32.193.55.74
3.231.62.239

MX 5

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

TXT 5

00906776
v=spf1 mx include:_spf.google.com include:email-od.com ip4:142.0.176.0/20 ~all
facebook-domain-verification=zlevm4c81tzge2ckex4c9dal0bugku
yahoo-verification-key=0OoEEKaoACaTCPbi+oJDhk7COPJ43aVe/uQC1SVvJsg=
v=DMARC1; p=none; sp=none; rua=mailto:re+v5p8nq29aj3@inbound.dmarcdigests.com; ruf=mailto:forensic@signup.com; aspf=r; pct=100

NS 6

ns11.constellix.com
ns21.constellix.com
ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
ns61.constellix.net

SOA 1

ns11.constellix.com dns.constellix.com

CAA 2

iodef "mailto:production@signup.com"
issue "amazon.com"

TLS Certificates (3)

Common Name	Issuer	Expires
`signup.com`	C=US, O=Amazon, CN=Amazon RSA 2048 M01	Tue, 20 Oct 2026 23:59:59 +0000
`Amazon RSA 2048 M01`	C=US, O=Amazon, CN=Amazon Root CA 1	Fri, 23 Aug 2030 22:21:28 +0000
`Amazon Root CA 1`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2	Thu, 31 Dec 2037 01:00:00 +0000

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for signup.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 12b3692f-4960-4744-ad52-8d6f9e2d5a8a
Output Hash: b18e9491e532703f92577e6d4e0a3b550f5d3e4e504be6fb9cc4db218947daee
Signature: ed25519:eaf7ca795a18739ca2cbb8d52279ef9c46e4adceec7aee9b33c9bca1284cc768a1acdb43b3d0c3b7c54ec1543a4684b11966209d5b767725bc76e18903531503
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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