sazka.cz

Observed Aug 16, 2026, 11:29 UTC (22h 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.

Guarded by a firewall
Email bySendGrid
Secured byDigiCert
Registered withREG-WEBGLOBE
Also usesMicrosoft 365AppleSwissSignFacebook/MetaGlobalSignHackerOneAtlassian
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for sazka.cz in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.

INFRASTRUCTURE MAPwhat sazka.cz actually stands on - every host below is a signed observation
sazka.cz
A / AAAA
193.179.166.131
unattributedserves the site
NS
a1-19.akam.neta3-67.akam.neta14-65.akam.neta18-64.akam.net
akam.netanswers its DNS
MX
hooked.sazka.cz
SendGridreceives its email
TLS
*.sazka.cz
DigiCert Incissued its certificate

DNS Records

A 1

  • 193.179.166.131

MX 1

  • 10hooked.sazka.cz

TXT 13

  • MS=ms21184456
  • _rq4m1p4h4suxtpw0ujw35uxyfi65pw4
  • apple-domain-verification=jxvRI3Qa8X5W2vzw
  • swisssign-check=47I3RHmGhvNZKQdYpQNuq3uC9NE
  • v=spf2.0/mfrom mx ip4:193.179.166.128/25 ~all
  • facebook-domain-verification=3e00jcg061nrmii6fgsx0vilhvr677
  • globalsign-domain-verification=CCE43A41E1F5F1B3FC694CD8AB490474
  • h1-domain-verification=915feNDyzYQaJ6aXis3AfVC8TBDm97BpiCjv6y3Ks1KKM6FH
  • atlassian-sending-domain-verification=0d21a639-632d-4995-8206-0fcc5aa73e49
  • jEAmAsCIoNvk3hwVim2RPJYgfZM/EbekP9bMxekn4WejrLzJQxNoOgbjzHChUCKPdIhrygQ2o21jkpG7h0TKUA==

NS 4

  • a1-19.akam.net
  • a3-67.akam.net
  • a14-65.akam.net
  • a18-64.akam.net

SOA 1

  • a1-19.akam.net postmaster.sazka.cz

SRV 3

  • iptewe01.uc10.net:5060 p10
  • iptewe01.uc10.net:5061 p10
  • iptewe01.uc10.net:5269 p10

CAA 11

  • iodef "mailto:system@sazka.cz"
  • issue "digicert.com"
  • issue "globalsign.com"
  • issue "letsencrypt.org"
  • issue "pki.goog"
  • issue "sectigo.com"
  • issue "swisssign.com"
  • issuewild "digicert.com"
  • issuewild "globalsign.com"
  • issuewild "letsencrypt.org"

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; rua=mailto:dmarcreport@sazka.cz; ruf=mailto:dmarcreport@sazka.cz; ri=3600; fo=1; adkim=r; aspf=r

TLS Certificates (3)

Common NameIssuerExpires
*.sazka.cz C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=GeoTrust TLS RSA CA G1 Mon, 21 Sep 2026 23:59:59 +0000
GeoTrust TLS RSA CA G1 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Tue, 02 Nov 2027 12:23:37 +0000
DigiCert Global Root G2 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Fri, 15 Jan 2038 12:00:00 +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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_40de0db9884330cd
Output Hash
b2919d2dd4c1dadd6008646d5f34d3c9698d424cd0c773e5484a8815e021ea51
Signature
ed25519:48a117bcc2df4b11b7808fddd86dc29a73b6fa7455cb2cb12f2bf99dc7e3276370819f7812ba9ee7f198972273fa8dd7bbcd9dae679ab54dca762b753ac1af07
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT43,754 material changesacross 41,714 domains · last 24h · +4,514 vs yesterdayROTATION57 domains moved DNS from magpiedns.com to koaladns.com, 54 moved backa rotation loop, not a migration · 24hEMAIL DRIFT7 domains switched email providertop destination alltheemails.comNOW526 curated domains not reachable-65 vs yesterdaySITE ERRORS33,906 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,773 sites429 rate-limit / 403 bot-block, a posture signal