amper.cz
Observed Jul 29, 2026, 04:15 UTC (11h 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
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat amper.cz actually stands on - every host below is a signed observation
amper.cz
A / AAAA
193.179.209.132
unattributedserves the site
NS
ns1.regzone.czns1.regzone.dens1.regzone.info
regzone.cz + regzone.de + moreanswers its DNS
MX
relay.zoner.com
zoner.comreceives its email
TLS
amper.cz
Let's Encryptissued its certificate
DNS Records
A 1
193.179.209.132
MX 1
1relay.zoner.com
TXT 2
v=spf1 a mx include:spf.smartemailing.cz ~allv=DMARC1;p=reject;adkim=s;aspf=s;pct=100;
NS 3
ns1.regzone.czns1.regzone.dens1.regzone.info
SOA 1
ns1.regzone.cz administrator.czechia.cz
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
amper.cz |
C=US, O=Let's Encrypt, CN=YR1 | Wed, 07 Oct 2026 22:15:26 +0000 |
YR1 |
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 (1)
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_f09064586a5cbfa9- Output Hash
961d95378d5f5d9772a3fcb0e007f96694a8455fd13938d7a49f6fdff9d5256d- Signature
ed25519:8892354ca601b3ada0e62edbff9f526ee2ed5b9bf38338aa6a8a510b7e9d9677d87b98d48389c14394de3e40fe17239b5f45aa7e218f2467ee76990ba03d4e05- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast