siftscience.com

Observed 2026-07-12T23:52:02.182Z (10h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Registered withMarkMonitor Inc.

Also usesGoogle Search ConsoleAtlassian

8 subdomains · tranco_10k

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

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

siftscience.com

A / AAAA

141.193.213.21141.193.213.20

Cloudflareserves the site

ns-cloud-a3.googledomains.comns-cloud-a4.googledomains.comns-cloud-a2.googledomains.comns-cloud-a1.googledomains.com

googledomains.comanswers its DNS

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

Google Workspacereceives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://sift.com/

HTTP status301

Servercloudflare

TLS protocolHTTP/3

TLS issuernot observed

Behind Cloudflareyes

Response time266 ms

DNS resolutionNOERROR

Redirect chain

https://sift.com/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

141.193.213.21
141.193.213.20

MX 5

40aspmx2.googlemail.com
50aspmx3.googlemail.com
30alt2.aspmx.l.google.com
20alt1.aspmx.l.google.com
10aspmx.l.google.com

TXT 16

smartsheet-site-validation=RbwDWqrvr-wKLZvUzKTxpbiVOD_h1qln
onetrust-domain-verification=20cef4584bcc43de9b41f6fe2e3227a1
google-site-verification=9K69UXgGCplNSQPrf7OH1kaz7-wkmcyDb6Gha4zO31Q
anthropic-domain-verification-23jaks=85ASWjMb0aeY0R6hWBdw7NYME
atlassian-domain-verification=wiY8OVIgmIwlruVO4HI1v+GvPcMZ2pEH441W4dWlaLT9aA1uBxqghX4NJZzrXUbt
MS=ms94466513
remote-domain-verification=03c3165d-a6de-4931-99a1-77de88725007
_j0iodukomkt2xfhh5wrnozwgcgli09s
vitally-domain-verification=34076f17-7fa8-455e-bbc6-531fd2fc8ac8
apple-domain-verification=q4v8OI0c0Gr0xSxx

NS 4

ns-cloud-a3.googledomains.com
ns-cloud-a4.googledomains.com
ns-cloud-a2.googledomains.com
ns-cloud-a1.googledomains.com

SOA 1

ns-cloud-a1.googledomains.com cloud-dns-hostmaster.google.com

CAA 2

issue pki.goog
issue digicert.com

TLS Certificates (0)

None.

Subdomains (8)

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

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

Ed25519 Receipt

Receipt ID: a81379a0-5100-4b82-b5e0-e3632f3d30d2
Output Hash: e17cc391e2e4beafdc4880868bbebd3862b36dde441573d7ebf25ffeecb30818
Signature: ed25519:1f1b6faa64ec8de8333f77e57e6a15b6fc0e22ea29437686db36968c961e4e0dce76ba867b5638913975370596d94433653fd446707f23e37522ca06dee1980f
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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