bfb.de

Observed Aug 16, 2026, 12:02 UTC (12h 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.

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Up right now
Runs onCloudflare
Also usesMicrosoft 365
4 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for bfb.de in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.

INFRASTRUCTURE MAPwhat bfb.de actually stands on - every host below is a signed observation
bfb.de
A / AAAA
85.13.138.137
Cloudflareserves the site
NS
ns2.nodesecure.dens1.nodesecure.com
nodesecure.de + nodesecure.comanswers its DNS
MX
mx03.hornetsecurity.commail.bfb.demx02.hornetsecurity.commx01.hornetsecurity.com+1 more
hornetsecurity.com + bfb.dereceives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.sellwerk-berlin.de/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time999 ms
DNS resolutionNOERROR
Redirect chain
https://www.sellwerk-berlin.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

  • 85.13.138.137

MX 5

  • 30mx03.hornetsecurity.com
  • 100mail.bfb.de
  • 20mx02.hornetsecurity.com
  • 10mx01.hornetsecurity.com
  • 40mx04.hornetsecurity.com

TXT 3

  • MS=ms55606410
  • MS=ms46511490
  • v=spf1 ip4:91.102.14.10/27 ip4:185.98.184.0/24 ip4:194.173.174.10/24 ip4:95.130.22.112/29 ip4:95.130.22.144/29 ip4:62.157.215.107 a:mail.bfb.de include:spfext.it2media.de include:spf.protection.outlook.com include:spf.hornetsecurity.com include:spf-de.emailsignatures365.com -all

NS 2

  • ns2.nodesecure.de
  • ns1.nodesecure.com

SOA 1

  • ns1.nodesecure.com domain.bfb.de

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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_bd7b80c79bfe861c
Output Hash
923294e46c0ac552986cc19e27b449137afc655b8e64a20f9647f3cf8312e668
Signature
ed25519:a73705e10c5d93a9398b28511dad2b3475b99a07f8c54a2b8f81f4d716acdcba46435ccad2fa26a310d3d9f1ebc7dc9fd47a42d9789f005b42277fc24bb82e02
Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent
(genesis)
Plane
fast
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CONTINUOUS INTERNET TELEMETRY24H DRIFT37,477 material changesacross 35,826 domains · 24h to ~3h ago · -1,763 vs yesterdayROTATION60 domains moved DNS from magpiedns.com to koaladns.com, 59 moved backa rotation loop, not a migration · 24hEMAIL DRIFT3 domains switched email provider24hNOW591 curated domains not reachablelast probe, steadySITE ERRORS35,522 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 116,252 sites429 rate-limit / 403 bot-block, a posture signal