matematikk.net
Observed Aug 10, 2026, 22:06 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.
matematikk.net is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting matematikk.net under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.
Watch matematikk.net Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Let's Encrypt
Google Search ConsoleDNS Records
A 1
172.105.248.173
MX 2
10mx1.de.opalstack.com10mx2.de.opalstack.com
TXT 2
v=spf1 include:spf.opalstack.com ~allgoogle-site-verification=EYegiSo0L9NsRbMuZZBIIYLkiVkYjCscM7SL2tsyKpo
NS 3
ns3.de.opalstack.comns2.de.opalstack.comns1.de.opalstack.com
SOA 1
ns1.de.opalstack.com hostmaster.matematikk.net
DMARC_RECORDS 1
v=DMARC1; p=none
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
matematikk.net |
C=US, O=Let's Encrypt, CN=YR2 | Fri, 04 Sep 2026 15:00:40 +0000 |
YR2 |
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)
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_186c6444c5bd6e97- Output Hash
778fe6c54473a360d2f8b6812f03995f0fbc3718a9c98fa7ba911b96b65109dc- Signature
ed25519:75cb18076c2dea96b13b83db0d76492caa509ccbcf047d3c3b5eab06bb61632f16753688a63d1e45f79698d9ca078545223ce557bc0257f473b98c86998a3f0e- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast