zsa.io
Observed Jul 24, 2026, 20:43 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.
Up right now
Runs onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
Also usesGoogle Search Console
IPv6 · 1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zsa.io actually stands on - every host below is a signed observation
zsa.io
A / AAAA
172.67.68.46104.26.5.21104.26.4.212606:4700:20::ac43:442e+2 more
Cloudflareserves the site
NS
cosmin.ns.cloudflare.comelma.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more
Google Workspacereceives its email
TLS
zsa.io
Google Trust Servicesissued its certificate
DNS Records
A 3
172.67.68.46104.26.5.21104.26.4.21
AAAA 3
2606:4700:20::ac43:442e2606:4700:20::681a:4152606:4700:20::681a:515
MX 5
10aspmx.l.google.com20alt1.aspmx.l.google.com30alt2.aspmx.l.google.com40aspmx2.googlemail.com50aspmx3.googlemail.com
TXT 5
google-site-verification=qsMlmkWCij_6iMu0DSGSsT4Ei2-M3UiRmfgj9dOzvpwgoogle-site-verification=rNojo1Duy_bOG77F80LcevrB0m0_BpmpsisNbdU0-Ggv=spf1 include:sendgrid.net include:shops.shopify.com include:_spf.google.com include:servers.mcsv.net ~allv=DMARC1; p=none;v=BIMI1;l=https://cdn.shopify.com/s/files/1/0311/0849/7545/files/zsa_email_logo.svg; a=;
NS 2
cosmin.ns.cloudflare.comelma.ns.cloudflare.com
SOA 1
cosmin.ns.cloudflare.com dns.cloudflare.com
CAA 10
issue "comodoca.com"issue "digicert.com; cansignhttpexchanges=yes"issue "letsencrypt.org"issue "pki.goog; cansignhttpexchanges=yes"issue "ssl.com"issuewild "comodoca.com"issuewild "digicert.com; cansignhttpexchanges=yes"issuewild "letsencrypt.org"issuewild "pki.goog; cansignhttpexchanges=yes"issuewild "ssl.com"
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
zsa.io |
C=US, O=Google Trust Services, CN=WE1 | Sat, 17 Oct 2026 08:38:32 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +0000 |
Subdomains (1)
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 receiptEd25519 Receipt
- Receipt ID
rcpt_8ecb2750ee0f181f- Output Hash
dd02bbc6e17ae0f8b60c741ddb7049c0f945e99a9e3263391fb4d3fe057e8fce- Signature
ed25519:68024278788db99ed8e1f1f85a31ccd564754f104af887e377000c31a0e5528bc98736934a19a3295b4fecebf21e839396f4416f2ab817b4e74e4e00c6b99b04- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast