CONTINUOUS INTERNET TELEMETRY24H DRIFT218 material changesacross 142 domains · +72 vs yesterdayEMAIL DRIFT1 domain switched email providertop destination xn----8sbafg9clhjcp.bgNOW4,619 curated domains not answering+285 vs yesterdayERRORS30,138 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED88,372 throttled or blocked our scanner429 rate-limit / 403 bot-blockMOVERgov.brAll nameservers removed (domain is dark)24H DRIFT218 material changesacross 142 domains · +72 vs yesterdayEMAIL DRIFT1 domain switched email providertop destination xn----8sbafg9clhjcp.bgNOW4,619 curated domains not answering+285 vs yesterdayERRORS30,138 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED88,372 throttled or blocked our scanner429 rate-limit / 403 bot-blockMOVERgov.brAll nameservers removed (domain is dark)

tele3.cz

Observed Jul 18, 2026, 13:04 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCASABLANCA INT a.s
Secured byZeroSSL GmbH
Also usesGoogle Search Console
IPv6 · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat tele3.cz actually stands on - every host below is a signed observation
tele3.cz
A / AAAA
81.0.217.12001:1528:123:123::123
CASABLANCA INT a.sserves the site
NS
ns1.tele3.czns2.tele3.czns3.tele3.eu
tele3.cz + tele3.euanswers its DNS
MX
mail.tele3.cz
tele3.czreceives its email
TLS
tele3.cz
ZeroSSL GmbHissued its certificate

DNS Records

A 1

  • 81.0.217.1

AAAA 1

  • 2001:1528:123:123::123

MX 1

  • 10mail.tele3.cz

TXT 4

  • f2909c6105d2ab9f2a979a0046d7e75c627c18b30d05cbebcd6f8c8ae938800f
  • google-site-verification=0mA4rrKR_OUGh_TOchQMM3-gzzrhTvm__0ceFYaRZ2k
  • v=spf1 mx a:ghostdog.tele3.cz a:cicinka.tele3.cz a:mail.dc3.cz a:mail.tele3.cz a:hit.cronhosting.cz a:krtek.zabijak.cz -all
  • v=DMARC1; p=none; pct=100; rua=mailto:dmarc@tele3.cz; ruf=mailto:dmarc@tele3.cz;

NS 3

  • ns1.tele3.cz
  • ns2.tele3.cz
  • ns3.tele3.eu

SOA 1

  • ns1.tele3.cz root.tele3.cz

TLS Certificates (3)

Common NameIssuerExpires
tele3.cz C=AT, O=ZeroSSL GmbH, CN=ZeroSSL ECC DV SSL CA 2 Thu, 03 Sep 2026 23:59:59 +0000
ZeroSSL ECC DV SSL CA 2 C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root E46 Sun, 23 Sep 2035 23:59:59 +0000
Sectigo Public Server Authentication Root E46 C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust ECC Certification Authority Mon, 18 Jan 2038 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 tele3.cz. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for tele3.cz <a href="https://domaindrift.io/t/tele3.cz"> <img src="https://domaindrift.io/badge/tele3.cz.svg" width="300" height="64" alt="DomainDrift signed observations for tele3.cz"> </a>

Ed25519 Receipt

Receipt ID
200ebb9c-2b6c-4fd9-a990-4c0513e6ba55
Output Hash
3da26f7fcbb99f9fbd296e6b4f6099df030331fed3024a43063753e92a0430df
Signature
ed25519:015f15e64da1d32e2cb1bc8c5978e7ba6eb752c82146e81ae47e83bddf9a1eb69ba1036a505ebb7af1438969178d1fc416d9199e5f0fd681b1cf5586ba68e70d
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser