CONTINUOUS INTERNET TELEMETRY24H DRIFT41,599 material changesacross 38,866 domains · 24h to ~40m ago · +739 vs yesterdayNOW555 curated domains not reachablelast probe, steadySITE ERRORS34,558 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,860 sites429 rate-limit / 403 bot-block, a posture signal

doltak.cz

Observed Jul 25, 2026, 18:47 UTC (7d 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 onCloudflare
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesFacebook/Meta
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat doltak.cz actually stands on - every host below is a signed observation
doltak.cz
A / AAAA
172.67.166.204104.21.49.1972606:4700:3032::ac43:a6cc2606:4700:3031::6815:31c5
Cloudflareserves the site
NS
grannbo.ns.cloudflare.comjarred.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
doltak-cz.mail.protection.outlook.com
Microsoft 365receives its email
TLS
doltak.cz
Let's Encryptissued its certificate

DNS Records

A 2

  • 172.67.166.204
  • 104.21.49.197

AAAA 2

  • 2606:4700:3032::ac43:a6cc
  • 2606:4700:3031::6815:31c5

MX 1

  • 1doltak-cz.mail.protection.outlook.com

TXT 3

  • facebook-domain-verification=3penrfk5471ay20u9jddexa4v051bc
  • v=spf1 a mx ip4:86.110.232.32/27 include:spf.protection.outlook.com ~all
  • v=DMARC1; p=none; rua=mailto:7lkhqk4qd0@dmarc-reports.ecomailapp.com; fo=1; ri=86400;

NS 2

  • grannbo.ns.cloudflare.com
  • jarred.ns.cloudflare.com

SOA 1

  • grannbo.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common NameIssuerExpires
doltak.cz C=US, O=Let's Encrypt, CN=YE1 Fri, 25 Sep 2026 17:22:47 +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 doltak.cz. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_23841cb4e976b8d8
Output Hash
df3d3af653ae87960642eddeddc264aa8bdc25ba38dd911187ef76f2335b99f1
Signature
ed25519:43fe046915d08be2e8604594ef4e6dbd1253396fee042c1e430f2c654f24a51dfcc252b039fd7df576c2c206b59f51c79cbf1fc3574af8dc825925dce2ddef0f
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser