yesterdays.nl
Observed Aug 2, 2026, 18:58 UTC (13h 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 byMicrosoft 365
Secured byLet's Encrypt
IPv6 · 2 subdomains · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat yesterdays.nl actually stands on - every host below is a signed observation
yesterdays.nl
A / AAAA
77.75.48.1142a00:5140:ed04:1114::1
2a00serves the site
NS
ns2.yourconcept.nlns1.yourconcept.nl
yourconcept.nlanswers its DNS
MX
yesterdays-nl.mail.protection.outlook.commail.yesterdays.nl
Microsoft 365receives its email
TLS
ftp.yesterdays.nl
Let's Encryptissued its certificate
DNS Records
A 1
77.75.48.114
AAAA 1
2a00:5140:ed04:1114::1
MX 2
1yesterdays-nl.mail.protection.outlook.com10mail.yesterdays.nl
TXT 2
MS=ms54936049v=spf1 include:spf.protection.outlook.com a:server5.yourconcept.nl ip4:77.75.48.114 ip6:2a00:5140:ed04:1114:0:0:0:1 -all
NS 2
ns2.yourconcept.nlns1.yourconcept.nl
SOA 1
ns1.yourconcept.nl hostmaster.yesterdays.nl
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
ftp.yesterdays.nl |
C=US, O=Let's Encrypt, CN=YE1 | Sun, 13 Sep 2026 04:34:07 +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 (2)
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_12bb0d99766424f8- Output Hash
fd4d62df80e77ab7441c42cf365c9f6eb3d6abfb5a10681aa4d4aebb4d1e8571- Signature
ed25519:d4000847a0236d7797162c828ee83867f2ad4890e51c122dcbd9e464a1d72a0ff3e00c124f3d4b1b06ee0f05ec0f012b02ac2782d4fe5c0551312b15d591bd09- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast