markharding.dev
Observed Aug 12, 2026, 05:20 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.
markharding.dev is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting markharding.dev 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 markharding.dev Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Google Workspace
Let's Encrypt
Google Search ConsoleDNS Records
A 1
76.76.21.21
MX 5
1aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com
TXT 2
google-site-verification=CyWbp3xqW0qnbaeHkJnj7TszvRR1mG4NRa0l4uLh5XYv=spf1 include:dc-aa8e722993._spfm.markharding.dev ~all
NS 2
ns41.domaincontrol.comns42.domaincontrol.com
SOA 1
ns41.domaincontrol.com dns.jomax.net
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
markharding.dev |
C=US, O=Let's Encrypt, CN=YR1 | Sun, 11 Oct 2026 19:05:16 +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 (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_85afa309da74df62- Output Hash
c21ab3b38430a7af394db6fb2508847f3013d2783393f8778ff754bb25d0bcde- Signature
ed25519:b47b4e0809a31ab666cb7f11c6352a46d3c16837eec7ff4c97c962e375b7dd3a245fa32113137ea286eee418d2af22d33c48fd97a8c9f985aff9aeb7f17a4a0d- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast