archat.us
Observed Jul 24, 2026, 09:48 UTC (6h 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
Secured byLet's Encrypt
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat archat.us actually stands on - every host below is a signed observation
archat.us
A / AAAA
216.150.1.193216.150.16.193
unattributedserves the site
NS
joselyn.ns.cloudflare.comzod.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
m1.feishu.cn
feishu.cnreceives its email
TLS
archat.us
Let's Encryptissued its certificate
DNS Records
A 2
216.150.1.193216.150.16.193
MX 1
1m1.feishu.cn
TXT 2
v=spf1 +include:_netblocks.m.feishu.cn ~allverification-code-site-App_feishu=Qq60Y3e0EFX3RPp01GwP
NS 2
joselyn.ns.cloudflare.comzod.ns.cloudflare.com
SOA 1
joselyn.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
archat.us |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 21 Oct 2026 08:32:49 +0000 |
YR2 |
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 receiptEd25519 Receipt
- Receipt ID
rcpt_a869c73c2fb8619c- Output Hash
534e2417408528ace7c9a6750670bb32afe6c98d142b79c3aff1421764a3c68c- Signature
ed25519:9221faf2093903d929e7540555708dcbff7922cee0abc7a4e1214c1a39fcb3aefc8c8b669e33ae089b06bcd72defa71640e376eaf6695df48de37d1f043b090b- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast