CONTINUOUS INTERNET TELEMETRY24H DRIFT9,163 material changesacross 8,753 domains · last 24h · -1,252 vs yesterdayDNS DRIFT574 domains changed DNS providertop destination cloudflare.com · -85 vs yesterdayEMAIL DRIFT144 domains switched email providertop destination google.com · -23 vs yesterdayCERT DRIFT190 domains switched issuing CA24h · -29 vs yesterdayNOW453 curated domains not reachable-250 vs yesterdaySITE ERRORS17,354 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 96,853 sites429 rate-limit / 403 bot-block, a posture signal

nc.de

Observed Jul 24, 2026, 01:29 UTC (2h 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 onNetCologne Gesellschaft fur Telekommunikation mbH
Secured byLet's Encrypt
IPv6 · 1 subdomain · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat nc.de actually stands on - every host below is a signed observation
nc.de
A / AAAA
213.168.87.272001:4dd0:100:1f00:80:0:12:5
NetCologne Gesellschaft fur Telekommunikation mbHserves the site
NS
ns1.netcologne.dens3.netcologne.de
netcologne.deanswers its DNS
TLS
nc.de
Let's Encryptissued its certificate

DNS Records

A 1

  • 213.168.87.27

AAAA 1

  • 2001:4dd0:100:1f00:80:0:12:5

NS 2

  • ns1.netcologne.de
  • ns3.netcologne.de

SOA 1

  • ns1.netcologne.de hostmaster.netcologne.de

TLS Certificates (4)

Common NameIssuerExpires
nc.de C=US, O=Let's Encrypt, CN=YE1 Sat, 03 Oct 2026 07:07:31 +0000
YE1 C=US, O=ISRG, CN=Root YE Sat, 02 Sep 2028 23:59:59 +0000
Root YE C=US, O=Internet Security Research Group, CN=ISRG Root X2 Thu, 02 Sep 2032 23:59:59 +0000
ISRG Root X2 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

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for nc.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_7e673da4212a6356
Output Hash
fc901dd2814fe824ea88de5bb603d1d07bffe1a1f6265321336a68ae24d2cf11
Signature
ed25519:4e24b217cbdde5c61270f48f77f6a5add08fc959f1b61c373e930fdabff2905f0ab7216d6c363211347e96ee0163e8df7b9d12bc13d36871e9932d033a990b09
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser