retest.de
Observed Aug 3, 2026, 00:04 UTC (7h 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
Secured byLet's Encrypt
1 subdomain · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat retest.de actually stands on - every host below is a signed observation
retest.de
A / AAAA
157.90.51.4
unattributedserves the site
NS
ns1053.ui-dns.orgns1092.ui-dns.bizns1019.ui-dns.dens1109.ui-dns.com
ui-dns.org + ui-dns.biz + moreanswers its DNS
MX
smtp.ubs-hainer.com
ubs-hainer.comreceives its email
TLS
retest.de
Let's Encryptissued its certificate
DNS Records
A 1
157.90.51.4
MX 1
10smtp.ubs-hainer.com
TXT 1
v=spf1 a mx ip4:80.151.241.38 ip4:78.94.53.132 ~all
NS 4
ns1053.ui-dns.orgns1092.ui-dns.bizns1019.ui-dns.dens1109.ui-dns.com
SOA 1
ns1019.ui-dns.de hostmaster.1und1.com
DMARC_RECORDS 1
v=DMARC1; p=quarantine
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
retest.de |
C=US, O=Let's Encrypt, CN=YR1 | Thu, 22 Oct 2026 18:50:41 +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 (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 receiptEd25519 Receipt
- Receipt ID
rcpt_903b864efd83ceba- Output Hash
a592fde2ede842b49fe0ce6e549b2b5ea15453cc6a9e1d16db4b4c56aa4039e4- Signature
ed25519:1457e65e7531530f7d07755abbdc4bc2a69af98454298cabf75ccc62570027a205095a42d9c1eb0bebbcc7e4a5f4f778723ae298f301b38d2325e9b3d0f38302- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast