springer.de
Observed 2026-07-17T15:33:45.275351917+00:00 (12h ago). Every field below was attested with an Ed25519 signature at scan time.
Not responding
Email byProofpoint
Secured byLet's Encrypt
tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat springer.de actually stands on - every host below is a signed observation
springer.de
A / AAAA
146.75.28.95
unattributedserves the site
NS
pdns1.ultradns.netpdns2.ultradns.netpdns3.ultradns.orgpdns4.ultradns.org+2 more
ultradns.net + ultradns.org + moreanswers its DNS
MX
mxa-002c5801.gslb.pphosted.commxb-002c5801.gslb.pphosted.com
Proofpointreceives its email
TLS
springer.de
Let's Encryptissued its certificate
DNS Records
A 1
146.75.28.95
MX 2
15mxa-002c5801.gslb.pphosted.com15mxb-002c5801.gslb.pphosted.com
TXT 3
MS=ms18091881v=spf1 ip4:195.128.10.18/32 ip4:195.128.10.15/32 ip4:66.159.232.113/32 ip4:66.159.234.15/32 include:_spf.google.com include:spf-002c5801.pphosted.com -allv=DMARC1; p=reject; pct=100; rua=mailto:re+j8qqigcxr6r@dmarc.postmarkapp.com; sp=none; aspf=r;
NS 6
pdns1.ultradns.netpdns2.ultradns.netpdns3.ultradns.orgpdns4.ultradns.orgpdns5.ultradns.infopdns6.ultradns.co.uk
SOA 1
pdns1.ultradns.net hostmaster.springer.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
springer.de |
C=US, O=Let's Encrypt, CN=YR1 | Thu, 24 Sep 2026 03:28:08 +0000 |
YR1 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 23:59:59 +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 receiptEd25519 Receipt
- Receipt ID
103e4034-7aee-439e-a14f-f4b6bb53940f- Output Hash
8ed4a2474568403072e89bc8d09cda0df6d55461eaf61a0df6cd754df04e5662- Signature
ed25519:cdeb1939dfb01026bfdb673f74bf89d88504c2613970e5702439117ade4752e96a60f25945b6a17c3ab84124e722d32e3f197315d9e702401a21ce04562a3301- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast