CONTINUOUS INTERNET TELEMETRY24H DRIFT48,392 material changesacross 43,424 domains · 24h to ~60m ago · +13,986 vs yesterdayROTATION55 domains moved DNS from koaladns.com to magpiedns.com, 54 moved backa rotation loop, not a migration · 24hNOW611 curated domains not reachablelast probe, steadySITE ERRORS34,180 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,835 sites429 rate-limit / 403 bot-block, a posture signal

retailguide.cz

Observed Aug 2, 2026, 21:41 UTC (7d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of retailguide.cz was taken 7d ago

retailguide.cz is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting retailguide.cz under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch retailguide.cz Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Up right now
Secured byLet's Encrypt
IPv6 · 1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat retailguide.cz actually stands on - every host below is a signed observation
retailguide.cz
A / AAAA
37.9.175.2112a00:4b40:aaaa:2011::7
2a00serves the site
NS
ns1.websupport.czns2.websupport.czns3.websupport.eu
websupport.cz + websupport.euanswers its DNS
MX
mx.web4u.czmailin1.retailguide.czmailin2.retailguide.cz
web4u.cz + retailguide.czreceives its email
TLS
retailguide.cz
Let's Encryptissued its certificate

DNS Records

A 1

  • 37.9.175.211

AAAA 1

  • 2a00:4b40:aaaa:2011::7

MX 3

  • 10mx.web4u.cz
  • 10mailin1.retailguide.cz
  • 20mailin2.retailguide.cz

TXT 1

  • v=spf1 a mx ip4:31.15.10.141 include:_spf.m1.websupport.sk ~all

NS 3

  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu

SOA 1

  • ns1.websupport.cz admin.websupport.cz

TLS Certificates (3)

Common NameIssuerExpires
retailguide.cz C=US, O=Let's Encrypt, CN=YR2 Wed, 14 Oct 2026 13:13:28 +0000
YR2 C=US, O=ISRG, CN=Root YR Sat, 02 Sep 2028 23:59:59 +0000
Root YR C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

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_e2c2b0e6b8993aa1
Output Hash
ef222dbf3ec43348c82892cf9ce87e70a61b5fd8c723b3c54de845b9a7f86d19
Signature
ed25519:7856fcb6a0bbb7c23eb60fa08ce3bd5f401087f879b17c9fcbca9720b2916fa9c807948562225b875116f4b843f6ef851911b8df54b41d07a5612037f782fd02
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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