CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 15,535 material changesacross 14,922+ domains · 24h to ~5h ago · a floor, 19h of 24 walkedNOW560 curated domains not reachablelast probe, steadySITE ERRORS34,304 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,289 sites429 rate-limit / 403 bot-block, a posture signalMOVERokta.comNo mail routes in the latest observation

upm.cz

Observed Aug 2, 2026, 12:09 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of upm.cz was taken 1d ago

upm.cz is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting upm.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 upm.cz Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Verify this receipt yourself + Watch this domain
Up right now
Secured byLet's Encrypt
IPv6 · 1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat upm.cz actually stands on - every host below is a signed observation
upm.cz
A / AAAA
37.9.175.1632a00:4b40:aaaa:2005::7
2a00serves the site
NS
ns1.ignum.comns2.ignum.cz
ignum.com + ignum.czanswers its DNS
MX
m45984.acsoc.czmail.upm.cz
acsoc.cz + upm.czreceives its email
TLS
upm.cz
Let's Encryptissued its certificate

DNS Records

A 1

  • 37.9.175.163

AAAA 1

  • 2a00:4b40:aaaa:2005::7

MX 2

  • 10m45984.acsoc.cz
  • 15mail.upm.cz

TXT 3

  • MS=ms93254842
  • MS=BD852D0B62A6E3D4E86EF5824BAE6C7CF2744A98
  • v=spf1 ip4:37.9.178.163 ip4:31.31.73.12 ip4:95.168.211.187 ip4:37.157.192.174 ip4:31.31.78.96 ip4:80.188.40.11 ip4:88.146.184.68 ip4:88.146.184.67 ip4:31.15.10.73 ip4:89.187.129.13 ip4:89.187.129.14 include:spf.active24.com include:_spf.fxdc.cz ~all

NS 2

  • ns1.ignum.com
  • ns2.ignum.cz

SOA 1

  • ns1.ignum.com hostmaster.ignum.cz

DMARC_RECORDS 1

  • v=DMARC1; p=none; rua=mailto:4mbqiqj38e@dmarc-reports.ecomailapp.com; fo=1; ri=86400;

TLS Certificates (3)

Common NameIssuerExpires
upm.cz C=US, O=Let's Encrypt, CN=YR2 Sun, 06 Sep 2026 21:14:03 +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; nothing leaves your machine.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_aad69b332700a343
Output Hash
2bd748de336280950989b694822745fecbe5ccf90f2d46b66feace5fe92c379e
Signature
ed25519:ce370c898f444833f6963c825987797b986527ef5a1c61bb838f42a3786d7ec0305949458f639ba4331aede21bc021913f27442e0d5d939faba06080033f830a
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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