masteringemacs.org
Observed Aug 10, 2026, 23:19 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.
masteringemacs.org is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting masteringemacs.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 masteringemacs.org Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Mandrill (Mailchimp)
Microsoft 365
Google Search ConsoleDNS Records
A 1
178.79.153.72
MX 1
10semantical.co.uk
TXT 3
v=spf1 a mx ip4:178.79.132.214 include:spf.protection.outlook.com include:spf.mandrillapp.com -allMS=ms56363068google-site-verification=vMTIonDRzJwGHGCQdTAk_u0KZbpX3ZewAjjD7EeaKMA
NS 5
ns1.linode.comns4.linode.comns5.linode.comns2.linode.comns3.linode.com
SOA 1
ns1.linode.com domains.semantical.co.uk
DMARC_RECORDS 1
v=DMARC1; p=none
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
masteringemacs.org |
C=AT, O=ZeroSSL GmbH, CN=ZeroSSL ECC DV SSL CA 2 | Sat, 26 Sep 2026 23:59:59 +0000 |
ZeroSSL ECC DV SSL CA 2 |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root E46 | Sun, 23 Sep 2035 23:59:59 +0000 |
Sectigo Public Server Authentication Root E46 |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust ECC Certification Authority | Mon, 18 Jan 2038 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_13b15c548995c23e- Output Hash
7ab9611dc3d2d74dc85c4bca8cb0d5bbc49d0d832a924870ee8dfeaf65bdbcb6- Signature
ed25519:8611037eab27658ef0c00e8d71e9e6d62be2e6b05ba11e077e13e9147dc095d4ab2598259a0c6cf457526aa25c401f90194571201e414c1987912aa6f1204a05- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast