linuxbook.ir
Observed Aug 16, 2026, 09:22 UTC (8h 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 byGoogle Trust Services
Google Trust ServicesIPv6 · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat linuxbook.ir actually stands on - every host below is a signed observation
linuxbook.ir
A / AAAA
104.21.28.243172.67.147.2332606:4700:3032::ac43:93e92606:4700:3033::6815:1cf3
Cloudflareserves the site
NS
adel.ns.cloudflare.comdean.ns.cloudflare.com
cloudflare.comanswers its DNS
TLS
linuxbook.ir
Google Trust Servicesissued its certificate
DNS Records
A 2
104.21.28.243172.67.147.233
AAAA 2
2606:4700:3032::ac43:93e92606:4700:3033::6815:1cf3
NS 2
adel.ns.cloudflare.comdean.ns.cloudflare.com
SOA 1
adel.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
linuxbook.ir |
C=US, O=Google Trust Services, CN=WE1 | Sat, 17 Oct 2026 16:57:38 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_87bcf3b7ee53bda0- Output Hash
5e18b790a8ea6b0e3d54483b727e4ea711927adb9397d7e3c440ffd114070ef8- Signature
ed25519:7f8ea8ddd96249113518d646ec564278f1f8dd270dbbd039ff6cb8f1ecad8bdb8a9548a5e42970ca7a6c0b359e923ef200fefa06aa0c1b84a8c70228cb876809- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast