kalkulator.guru
Observed Aug 16, 2026, 06:49 UTC (13h 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
Let's EncryptAlso usesGoogle Search Console
Google Search ConsoleIPv6 · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat kalkulator.guru actually stands on - every host below is a signed observation
kalkulator.guru
A / AAAA
152.233.50.22400:52e0:1a04::1310:1
2400serves the site
NS
mitch.ns.cloudflare.comsaanvi.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mail.kalkulator.guru
kalkulator.gurureceives its email
TLS
kalkulator.guru
Let's Encryptissued its certificate
DNS Records
A 1
152.233.50.2
AAAA 1
2400:52e0:1a04::1310:1
MX 1
10mail.kalkulator.guru
TXT 2
google-site-verification=hEhBCF4ShW7K4N1_3YBxvhq9s5FK55t0fmBbjPTNfn4lh-verification=73fe05cf8b7f2f65d264
NS 2
mitch.ns.cloudflare.comsaanvi.ns.cloudflare.com
SOA 1
mitch.ns.cloudflare.com dns.cloudflare.com
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
kalkulator.guru |
C=US, O=Let's Encrypt, CN=YR2 | Sat, 17 Oct 2026 14:03:19 +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 |
ISRG Root X1 |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Mon, 04 Jun 2035 11:04:38 +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_b6c1d9a949eff269- Output Hash
8eb9b13e8489e42d8f37939ed779fadbdc22547d1c889e66819bad43f2b33ac8- Signature
ed25519:9744da3e81b6be3a45416c193061b65ac5120896e8872d852df9097d9c8bf2d414a0f69f5897f8042982dcd337008ce7c895cb4905de53275907189efc315206- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast