extra.cz

Observed 2026-07-13T05:42:17.900Z (4h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byMicrosoft 365

Also usesGoogle Search Console

96 subdomains · tranco_20k

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

INFRASTRUCTURE MAPwhat extra.cz actually stands on - every host below is a signed observation

extra.cz

A / AAAA

185.175.84.23

Cloudflareserves the site

terry.ns.cloudflare.commichelle.ns.cloudflare.com

cloudflare.comanswers its DNS

extra-cz.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.extra.cz/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time498 ms

DNS resolutionNOERROR

Redirect chain

https://www.extra.cz/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

185.175.84.23

MX 1

0extra-cz.mail.protection.outlook.com

TXT 5

google-site-verification=3e5meS7zH9SDZQqmocrfVm2L39vvs0iyhFD5hLgSCaY
v=spf1 include:spf.protection.outlook.com -all
MS=ms79184243
google-site-verification=YDJOCnHCBE3LIrKfIQWSNMHRTv1MH1ylthmgJ-aaY3E
v=DKIM1; (detected)

NS 2

terry.ns.cloudflare.com
michelle.ns.cloudflare.com

SOA 1

michelle.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (0)

None.

Subdomains (96)

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 extra.cz. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 2215b05e-532d-4736-a7c0-3f86f35e478d
Output Hash: e51f2f45e4c10d9de6f73dc9571748862b90cd39945ef85419cf8636287cc373
Signature: ed25519:6ed0f84d73fd0cd1aa309ddab14ad60919c8a21fd15853bc5aee0f9f5b548b640ae6bd36381aaf3df7c53e0ef19bc9ef8f53ed5f4e145cb24b43150f5ef4af0d
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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