asd-software.cz
Observed Aug 10, 2026, 12:07 UTC (7h 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 onWebSupport s.r.o
Secured byLet's Encrypt
Also usesGoogle Search Console
DNSSEC on · IPv6 · 1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat asd-software.cz actually stands on - every host below is a signed observation
asd-software.cz
A / AAAA
37.9.175.2122a00:4b40:aaaa:2011::6
WebSupport s.r.oserves the site
NS
ns1.websupport.czns2.websupport.czns3.websupport.eu
websupport.cz + websupport.euanswers its DNS
MX
extfw.asd-software.cz
asd-software.czreceives its email
TLS
www.asd-software.cz
Let's Encryptissued its certificate
DNS Records
A 1
37.9.175.212
AAAA 1
2a00:4b40:aaaa:2011::6
MX 1
10extfw.asd-software.cz
TXT 4
MS=ms69115063MS=ms77308358v=spf1 mx ip4:88.103.208.50 ~allgoogle-site-verification=7ng99uszn5xNPOtudquesKjr_5Ccf4Qdb2BihZ0dzuo
NS 3
ns1.websupport.czns2.websupport.czns3.websupport.eu
SOA 1
ns1.websupport.cz admin.websupport.cz
CAA 2
issue "digicert.com"issue "letsencrypt.org"
DMARC_RECORDS 1
v=DMARC1; p=quarantine; pct=100;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.asd-software.cz |
C=US, O=Let's Encrypt, CN=YR1 | Fri, 06 Nov 2026 01:19:51 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_c366a56fe0011877- Output Hash
2a51e480af487bc262d00ba87c2d007d3434ef532ed3167d1b036ed3f540eff7- Signature
ed25519:d354492b991c107a78b7efc6d1f7ac692e450ec6b186ef0adf843214eacd59b24bae2092bdaadc7d91dceda5032a4eddc5e4a9777a8dad16df539eba601fa302- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast