firstround.com

Observed 2026-07-17T12:39:11.918881716+00:00 (10h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byGoogle Workspace

Secured byLet's Encrypt

Registered with101domain GRS Limited

Also usesAtlassianNotionDocuSignZoomGoogle Search Console

push_legacy

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

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

firstround.com

A / AAAA

76.76.21.21

Amazonserves the site

ns15.zoneedit.comns12.zoneedit.com

zoneedit.comanswers its DNS

alt3.aspmx.l.google.comaspmx.l.google.comalt2.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

firstround.com

Let's Encryptissued its certificate

DNS Records

A 1

76.76.21.21

MX 5

10alt3.aspmx.l.google.com
1aspmx.l.google.com
5alt2.aspmx.l.google.com
5alt1.aspmx.l.google.com
10alt4.aspmx.l.google.com

TXT 25

quKZfmpsWEo7WCdvNUhXMX7nyNqRwp
v=spf1 include:mailgun.org include:firstround.com._nspf.vali.email include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
apple-domain-verification=Tbtinl2MBVdAWetY
atlassian-domain-verification=qtnvoyl1dgvVN1pSamz1cVTsR4DJh0NOi953TjcLJUhQKRhcly1jclDDBONC3X2k
tinfoil-site-verification: 7ed4d987c42ab73c75abe93523e82f1cfc905357=cbfc6debc4134d2a857d9af4569591b52631e2c0
proxy-ssl.webflow.com
loom-verification=6092900914
amazonses:38uK8fT7us0MmGE8lrw14sm9Qx+JF6ffecR5z3uPJaY=
soI951V
MS=ms38264384

NS 2

ns15.zoneedit.com
ns12.zoneedit.com

SOA 1

dns0.zoneedit.com zone.zoneedit.com

TLS Certificates (3)

Common Name	Issuer	Expires
`firstround.com`	C=US, O=Let's Encrypt, CN=YR1	Tue, 06 Oct 2026 20:52:21 +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 firstround.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: ccb55ad4-7c49-42b1-8d77-b0a3f238612f
Output Hash: 6629a0bb515bf858274bc4f8330f145bb7e10cca796e4304f9c8ded999fccfbc
Signature: ed25519:ddd9421e1f5809b5f31af6a286c392f7d9c9d0652c7e64a5b1d0ab165ec9eab6bf178d27176bc41d4886a4bca6cab449245f119f23ec179a515d62af3948200d
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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