CONTINUOUS INTERNET TELEMETRY24H DRIFT10,789 material changesacross 10,408 domains · +160 vs yesterdayDNS DRIFT758 domains changed DNS providertop destination cloudflare.com · -22 vs yesterdayEMAIL DRIFT174 domains switched email providertop destination google.com · +4 vs yesterdayCERT DRIFT218 domains switched issuing CA24h · -12 vs yesterdayNOW1,171 curated domains not reachable-178 vs yesterdaySITE ERRORS19,169 sites serving errorslast probe · 5xx / 404 / TLSTHROTTLED95,118 throttled or blocked our scanner429 rate-limit / 403 bot-block

classcard.net

Observed Jul 22, 2026, 00:42 UTC (1d 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.

Up right now
Runs onSK Broadband Co
Secured byDigiCert
Registered withPDR Ltd. d/b/a PublicDomainRegistry.com
Also usesGoogle Search Console
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat classcard.net actually stands on - every host below is a signed observation
classcard.net
A / AAAA
114.203.209.251
SK Broadband Coserves the site
NS
ns1.kshosting.co.krns2.kshosting.co.kr
kshosting.co.kranswers its DNS
MX
mx2.mail.iwinv.kr
iwinv.krreceives its email
TLS
*.classcard.net
DigiCert Incissued its certificate

DNS Records

A 1

  • 114.203.209.251

MX 1

  • 10mx2.mail.iwinv.kr

TXT 7

  • google-site-verification=wQ2NVxeOvrUQUMOCY_z4AuS2Ii3YXFoVCZR3Ue0nZE0
  • anthropic-domain-verification-f4gh7d=vVjAxhUspQ6eUiA6XhhCTBHNW
  • 585b2c800d4b36729a5e20e64c92a9b2fcd483905475ed9805f35c762346d6f
  • v=spf1 a ip4:222.236.46.6 ip4:114.203.209.245 ip4:114.203.209.246 ip4:114.203.209.247 ip4:114.203.209.250 ip4:114.203.209.251 ip4:58.225.56.21 ip4:58.225.56.22 ip4:58.225.56.23 ip4:58.225.56.24 ip4:58.225.56.25 include:_spf.mail.iwinv.kr ~all
  • bb95e6d5e87cbee8f80a0991488204a2b6f09e344cbe85292ac1dbd6878dead
  • google-site-verification=Nuxo3lUiNW_9pMdP4wnrFymYETu0qNaov7iwuk14yvQ
  • v=DMARC1; p=none;

NS 2

  • ns1.kshosting.co.kr
  • ns2.kshosting.co.kr

SOA 1

  • ns1.kshosting.co.kr root.kshosting.co.kr

TLS Certificates (2)

Common NameIssuerExpires
*.classcard.net C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=RapidSSL TLS RSA CA G1 Thu, 15 Oct 2026 23:59:59 +0000
RapidSSL 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 12:24:33 +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 classcard.net. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_cd724d4365993d45
Output Hash
13ed257d558a9f15da71198ac04715511405c0b23b8d9f89a56d79fbadb64ae3
Signature
ed25519:929fb28f06a60685998dd328271b02ef9390dbf06be7644df42c6f2c8b2f588017fbbc4717726c5f075dc12e104dcad3474711ceb0a78311d675644347cb1102
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser