dob.sk
Observed Jul 29, 2026, 01:38 UTC (20h 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
Email byGoogle (SPF sender)
Secured byLet's Encrypt
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat dob.sk actually stands on - every host below is a signed observation
dob.sk
A / AAAA
148.251.57.170
unattributedserves the site
NS
ns1.first-ns.dens1.dob.skns3.dob.skrobotns2.second-ns.de+2 more
first-ns.de + dob.sk + moreanswers its DNS
MX
relay.dob.sk
Google (SPF sender)receives its email
TLS
dob.sk
Let's Encryptissued its certificate
DNS Records
A 1
148.251.57.170
MX 1
10relay.dob.sk
TXT 3
MS=9F55B844CF58E12E8AAEEF1F04DB68C662F4A170v=spf1 mx include:_spf.google.com ~allv=DMARC1;p=none;sp=reject;rua=mailto:dob-dmarc@dob.sk
NS 6
ns1.first-ns.dens1.dob.skns3.dob.skrobotns2.second-ns.dens4.dob.skrobotns3.second-ns.com
SOA 1
ns1.dob.sk domain-admin.dob.sk
SRV 1
autodiscover.cp.dob.sk:443 p10
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
dob.sk |
C=US, O=Let's Encrypt, CN=YR2 | Wed, 07 Oct 2026 02:09:09 +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 |
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_cee5c9256bc61d3a- Output Hash
0630c0eb9d09086fbbebb3510f4596f3bb743b9e78b57421a5b0c8350766bc8f- Signature
ed25519:d5b29ecb3c0902730c699082a198fce070f9195a663f14a38594afcb8fa3ca08bfdc13814ef46ad75008fa2cae6e5d7ec01b75d496c6c02653f1d9fee4015407- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast