kalkulacka.one

Observed Aug 2, 2026, 08:04 UTC (12d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of kalkulacka.one was taken 12d ago

kalkulacka.one is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting kalkulacka.one 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 kalkulacka.one Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Secured byLet's Encrypt
Registered toKohoVolit.eu
Registered withGransy, s.r.o.
domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat kalkulacka.one actually stands on - every host below is a signed observation
kalkulacka.one
A / AAAA
76.76.21.21
unattributedserves the site
NS
raina.ns.cloudflare.comthaddeus.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
route3.mx.cloudflare.netroute2.mx.cloudflare.netroute1.mx.cloudflare.net
cloudflare.netreceives its email
TLS
kalkulacka.one
Let's Encryptissued its certificate

DNS Records

A 1

  • 76.76.21.21

MX 3

  • 27route3.mx.cloudflare.net
  • 40route2.mx.cloudflare.net
  • 69route1.mx.cloudflare.net

TXT 1

  • v=spf1 include:_spf.mx.cloudflare.net include:spf.postal.druit.org -all

NS 2

  • raina.ns.cloudflare.com
  • thaddeus.ns.cloudflare.com

SOA 1

  • raina.ns.cloudflare.com dns.cloudflare.com

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; rua=mailto:7a63bf8d641b4a958457f7dba4c01219@dmarc-reports.cloudflare.net

TLS Certificates (3)

Common NameIssuerExpires
kalkulacka.one C=US, O=Let's Encrypt, CN=YR2 Mon, 28 Sep 2026 15:51:58 +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 (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_ae44e7b21c69ad80
Output Hash
1669a69887bd13c667040dbabbe1ed347d00ed74c40589d2ca97c5fa37becc69
Signature
ed25519:fe6b9e71e83fd079ccde6c4b59c731ae3fb06d68581873ac0967c09c45882ae0a35cdcaa677ab2a07f11dd89aefb5da6c015d7f23e33a15ce45130dc6831260d
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT44,109 material changesacross 42,312 domains · 24h to ~2h ago · +27 vs yesterdayROTATION64 domains moved DNS from koaladns.com to magpiedns.com, 61 moved backa rotation loop, not a migration · 24hNOW491 curated domains not reachablelast probe, steadySITE ERRORS36,532 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,153 sites429 rate-limit / 403 bot-block, a posture signal