CONTINUOUS INTERNET TELEMETRY24H DRIFT1,964 material changesacross 1,785 domains · +5 vs yesterdayDNS DRIFT20 domains changed DNS providertop destination parity.domains · +1 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination google.comCERT DRIFT2 domains switched issuing CA24hNOW3,429 curated domains not answeringlast probe, steadyERRORS8,555 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,312 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT1,964 material changesacross 1,785 domains · +5 vs yesterdayDNS DRIFT20 domains changed DNS providertop destination parity.domains · +1 vs yesterdayEMAIL DRIFT3 domains switched email providertop destination google.comCERT DRIFT2 domains switched issuing CA24hNOW3,429 curated domains not answeringlast probe, steadyERRORS8,555 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,312 throttled or blocked our scanner429 rate-limit / 403 bot-block

ptb.de

Observed 2026-07-14T12:15:37.551Z (12h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now
Runs onCloudflare
4 subdomains · tranco_20k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ptb.de actually stands on - every host below is a signed observation
ptb.de
A / AAAA
192.53.103.121
Cloudflareserves the site
NS
dns-1.dfn.dedns-2.dfn.dedns-3.dfn.dens1.ptb.de
dfn.de + ptb.deanswers its DNS
MX
mx1.berlin.ptb.demx1.bs.ptb.de
ptb.dereceives its email

HTTPS probe

redirect Redirecting (3xx) 302 → https://www.ptb.de/
HTTP status302
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time841 ms
DNS resolutionNOERROR
Redirect chain
https://www.ptb.de/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

  • 192.53.103.121

MX 2

  • 20mx1.berlin.ptb.de
  • 10mx1.bs.ptb.de

TXT 6

  • v=spf1 ip4:192.53.103.120/32 ip4:194.94.94.97/32 ip6:2001:638:610:bd01::120/128 ip6:2001:638:610:cdce::61/128 include:spf.smtp.net ~all
  • apple-domain-verification=XrEPkGN8FLiu5cwG
  • MS=ms585763033600
  • v=DMARC1; p=quarantine; rua=mailto:dmarc@ptb.de
  • v=STSv1; id=20251104153500Z
  • v=DNSSEC1; (detected)

NS 4

  • dns-1.dfn.de
  • dns-2.dfn.de
  • dns-3.dfn.de
  • ns1.ptb.de

SOA 1

  • ns1.ptb.de postmaster.ptb.de

CAA 4

  • issue pki.dfn.de
  • issue sectigo.com
  • issue harica.gr
  • issue letsencrypt.org

TLS Certificates (0)

None.

Subdomains (4)

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 ptb.de. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
f7827d84-ec97-489c-8401-63784dfd564a
Output Hash
276ae5ffea3282812f89e9bc1ab09872c540f72fd35e85ddfa4221b930c1bf9d
Signature
ed25519:07a40a41f28c0118a5165a3d4db2ffbf33375ad36aebb4ac3aa7037edb8d6f0c2f27958577b98874d93138f6adb6fe061d8c3084437d30107fbc9fa8fda50d0e
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser