zero1.sg
Observed Jul 25, 2026, 19:48 UTC (7d 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
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zero1.sg actually stands on - every host below is a signed observation
zero1.sg
A / AAAA
18.136.163.183
unattributedserves the site
NS
ns10.zonecybersite.comns11.zonecybersite.comns76.cybersitezone.comns77.cybersitezone.com
zonecybersite.com + cybersitezone.comanswers its DNS
MX
zero1-sg.mail.protection.outlook.com
Microsoft 365receives its email
TLS
zero1.sg
Let's Encryptissued its certificate
DNS Records
A 1
18.136.163.183
MX 1
0zero1-sg.mail.protection.outlook.com
TXT 3
google-site-verification=oPJUEX9NEQ9_OpIoLtSVmsCV3-atHc1BxB33wco6b1wv=spf1 include:spfa.mailendo.com ip4:18.139.25.207 ip4:13.229.38.113 ip4:18.136.163.183 include:spf.protection.outlook.com -allv=DMARC1; p=quarantine; pct=100; sp=reject; rua=mailto:dmarcreports@zero1.sg
NS 4
ns10.zonecybersite.comns11.zonecybersite.comns76.cybersitezone.comns77.cybersitezone.com
SOA 1
ns10.zonecybersite.com hostmaster.zero1.sg
TLS Certificates (2)
| Common Name | Issuer | Expires |
|---|---|---|
zero1.sg |
C=US, O=Let's Encrypt, CN=R13 | Sun, 23 Aug 2026 06:19:22 +0000 |
R13 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Fri, 12 Mar 2027 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 receiptEd25519 Receipt
- Receipt ID
rcpt_6f43f7271592b328- Output Hash
405148295db83bd3189f14b92b391caebea518c13b88e60338587b33c1020e3b- Signature
ed25519:f0b67dc4767424d222e379d11da0b922615929bf5c934ed78520c67fc1687bfd5507f089390224ec5d2bd3e1163b5bbf9f40b007f868080628490e1264998c0f- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast