mathsinthecity.com
Observed Aug 2, 2026, 22:57 UTC (13d ago). Every field below was attested with an Ed25519 signature at scan time.
mathsinthecity.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting mathsinthecity.com 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 mathsinthecity.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Let's EncryptDNS Records
A 2
138.113.241.241163.171.238.14
AAAA 2
2606:1980:6::402606:1980:6::3f
MX 2
10echo.mxrouting.net20echo-relay.mxrouting.net
TXT 1
v=spf1 include:mxlogin.com -all
NS 3
ns61.constellix.netns41.constellix.netns51.constellix.net
SOA 1
ns11.constellix.com dns.constellix.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.mathsinthecity.com |
C=US, O=Let's Encrypt, CN=YR1 | Mon, 07 Sep 2026 00:25:53 +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)
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_b2b06264bc3a44a6- Output Hash
1d3dc5afdc6738ce5ee0dd06f8495980f5a1d0000d2a8427648634e89096a380- Signature
ed25519:5ce2ec25591932d9599789e21adcc3909327c37bb183f65518a4209e14b75a0e983b8945e32560b48ff0ce26d4feeeb20fbc6b7ebd63bc644a246c24758e3b08- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast