urs-certification.com

Observed Jul 25, 2026, 15:08 UTC (8d 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.

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Up right now

Secured byLet's Encrypt

IPv6 · tranco

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat urs-certification.com actually stands on - every host below is a signed observation

urs-certification.com

A / AAAA

217.11.249.1382001:1528:240::b

2001serves the site

ns2.blueboard.czshinzon.blueboard.cz

blueboard.czanswers its DNS

cloud4.spamtitan.comcloud3.spamtitan.com

spamtitan.comreceives its email

TLS

urs-certification.com

Let's Encryptissued its certificate

DNS Records

A 1

217.11.249.138

AAAA 1

2001:1528:240::b

MX 2

10cloud4.spamtitan.com
10cloud3.spamtitan.com

TXT 2

v=spf1 a ip4:82.144.253.16/28 ip4:159.8.191.208/28 ip4:159.122.237.64/31 ip4:185.53.92.149/32 ~all
v=DMARC1; p=none;

NS 2

ns2.blueboard.cz
shinzon.blueboard.cz

SOA 1

shinzon.blueboard.cz hostmaster.shinzon.blueboard.cz

TLS Certificates (4)

Common Name	Issuer	Expires
`urs-certification.com`	C=US, O=Let's Encrypt, CN=YE1	Tue, 15 Sep 2026 17:47:33 +0000
`YE1`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +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; nothing leaves your machine.

Verify this receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for urs-certification.com. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/urs-certification.com">
  <img src="https://domaindrift.io/badge/urs-certification.com.svg"
       width="300" height="64" alt="DomainDrift signed observations for urs-certification.com">
</a>

Ed25519 Receipt

Receipt ID: rcpt_667c45ee9151948e
Output Hash: 83f01d2410dd58d6a934a755f3d84089f9bb6f0bf552b7c10ec9c01f89d022c9
Signature: ed25519:87602dec47e8d8ef7a877864228041fe5e663c7dc83fc07daeb72c30641279b296549e65b87bcd1b81c9474c55649137d51548b5ded40ec42d62320757a01a07
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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