mau.fyi
Observed Aug 16, 2026, 13:00 UTC (1h 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
CloudflareSecured byLet's Encrypt
Let's EncryptIPv6 · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat mau.fyi actually stands on - every host below is a signed observation
mau.fyi
A / AAAA
104.21.62.47172.67.220.602606:4700:3032::ac43:dc3c2606:4700:3030::6815:3e2f
Cloudflareserves the site
NS
hal.ns.cloudflare.comjune.ns.cloudflare.com
cloudflare.comanswers its DNS
TLS
mau.fyi
Let's Encryptissued its certificate
DNS Records
A 2
104.21.62.47172.67.220.60
AAAA 2
2606:4700:3032::ac43:dc3c2606:4700:3030::6815:3e2f
TXT 1
v=spf1 -all
NS 2
hal.ns.cloudflare.comjune.ns.cloudflare.com
SOA 1
hal.ns.cloudflare.com dns.cloudflare.com
DMARC_RECORDS 1
v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
mau.fyi |
C=US, O=Let's Encrypt, CN=YE1 | Tue, 29 Sep 2026 02:20:42 +0000 |
YE1 |
C=US, O=ISRG, CN=Root YE | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YE |
C=US, O=Internet Security Research Group, CN=ISRG Root X2 | Thu, 02 Sep 2032 23:59:59 +0000 |
ISRG Root X2 |
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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_026a3efc84a9f4aa- Output Hash
983d6b0a0e1be0388ddf47fcdf61fadffff3f12a37fcdd05f168ced7ba091a6a- Signature
ed25519:9ebd948f6a6bb6237c9b58252f5bfde40a111d45100dd5e18cd05d6a7876a8d9d8fcf79b0d8ada5e1bdf935187589e7af1c4aabb20733d0ea6f4162879361a08- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast