s-hochschule.de
Observed Aug 16, 2026, 07:53 UTC (6h 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
Email byHubSpot
HubSpotSecured byLet's Encrypt
Let's EncryptAlso usesGoogle Search Console
Google Search Console1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat s-hochschule.de actually stands on - every host below is a signed observation
s-hochschule.de
A / AAAA
167.235.202.33
unattributedserves the site
NS
docks01.rzone.deshades15.rzone.de
rzone.deanswers its DNS
MX
mxext1.mailbox.orgmxext3.mailbox.orgmxext4.mailbox.orgmxext2.mailbox.org
HubSpotreceives its email
TLS
s-hochschule.de
Let's Encryptissued its certificate
DNS Records
A 1
167.235.202.33
MX 4
10mxext1.mailbox.org100mxext3.mailbox.org100mxext4.mailbox.org10mxext2.mailbox.org
TXT 3
google-site-verification=6UpEd6t4Tb5aQ1V9hdUfjlDR9Lt_RmmMOBfPhwjk390v=spf1 a mx a:hsf-bonn.de include:spf.nl2go.com include:mailbox.org include:mailout1.mandarin-medien.de include:_spf.zimpel.de include:148108558.spf01.hubspotemail.net -allgoogle-site-verification=Sjc6It0xwa8vAPjvDJOFZnu1qilgkZPz_YUe-ot_WMU
NS 2
docks01.rzone.deshades15.rzone.de
SOA 1
docks01.rzone.de hostmaster.strato-rz.de
SRV 3
xmpp.mailbox.org:5222 p0xmpp.mailbox.org:5269 p0autoconfigure.strato.de:443 p0
DMARC_RECORDS 1
v=DMARC1;p=reject;
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
s-hochschule.de |
C=US, O=Let's Encrypt, CN=YE1 | Sat, 19 Sep 2026 20:22:45 +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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_4449c7d5e4347c54- Output Hash
fd36af2b843fa987fef61df876760c3d4daf7754e17cfc316a65e4c1b7b51b4f- Signature
ed25519:4903ae19b660ba6aa8fd5239661269c805715521957f9398b5189682e6e5e3ef931a7f958f664fd196d263b7edb5f0d7fa23719f2f80c5505544b481b215950d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast