arthur.io
Observed Jul 23, 2026, 08:39 UTC (2d 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
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat arthur.io actually stands on - every host below is a signed observation
arthur.io
A / AAAA
172.67.72.132104.26.3.82104.26.2.822606:4700:20::681a:352+2 more
Cloudflareserves the site
NS
margot.ns.cloudflare.comnick.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
arthur.io
Google Trust Servicesissued its certificate
DNS Records
A 3
172.67.72.132104.26.3.82104.26.2.82
AAAA 3
2606:4700:20::681a:3522606:4700:20::ac43:48842606:4700:20::681a:252
MX 5
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
NS 2
margot.ns.cloudflare.comnick.ns.cloudflare.com
SOA 1
margot.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
arthur.io |
C=US, O=Google Trust Services, CN=WE1 | Mon, 21 Sep 2026 01:17:19 +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 (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_0182f97d68f11a64- Output Hash
86eaabb6de8333cdd1506a9451f2a3cd05ac637e812e6a4b810a4eb95d5d3553- Signature
ed25519:4c73ffd19db0d5693b2278d723448c5138cdb9920ac1106b690739610e695749ad1147098e7ca04e213c4d46baf71dace45e5619944342383419d6b40ed7d40e- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast