math-center.org
Observed Aug 10, 2026, 23:09 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.
math-center.org is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting math-center.org 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 math-center.org Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Cloudflare
Google Workspace
Google Trust Services
Facebook/Meta
Google Search Console
PinterestDNS Records
A 2
172.66.43.117172.66.40.139
AAAA 2
2606:4700:3108::ac42:2b752606:4700:3108::ac42:288b
MX 6
1aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com15izmarkdbipr2rwns4vdopegfvxkfl5tzpy4ojiuveww2d3nf3caa.mx-verification.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com
TXT 4
facebook-domain-verification=dsbemr92ze9c9xulrlgbaeag61g3mqgoogle-site-verification=OzDPsEYWijWIElBsNt5W3rYF3zRIr0QHTeYzVJyr9BIpinterest-site-verification=5364eb2b570138113df7ed9139ffd922yandex-verification: 44e0399e5b52e4a6
NS 2
barbara.ns.cloudflare.comjake.ns.cloudflare.com
SOA 1
barbara.ns.cloudflare.com dns.cloudflare.com
DMARC_RECORDS 1
v=DMARC1; p=none;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
math-center.org |
C=US, O=Google Trust Services, CN=WE1 | Mon, 28 Sep 2026 14:57:36 +0000 |
WE1 |
C=US, O=Google Trust Services LLC, CN=GTS Root R4 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R4 |
C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA | Fri, 28 Jan 2028 00:00:42 +0000 |
Subdomains (0)
None observed.
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_c05149c679b142f1- Output Hash
7c87d3e1fd69175b708485d98bae24eb961e3b77c52498da47118d91300d5c8c- Signature
ed25519:7a0fde8c11862d17b46aa57b1e806a401f6c13f234645c7bc2d1d89c3739da5e7fed5b4d1892f2ae2fe3be0f450048269deee2e8e33d25f79e9969a095b82802- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast