birkhoff.me
Observed Aug 2, 2026, 08:35 UTC (10d ago). Every field below was attested with an Ed25519 signature at scan time.
birkhoff.me is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting birkhoff.me 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 birkhoff.me Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Amazon
Let's Encrypt
Google Search ConsoleDNS Records
A 1
76.76.21.21
MX 2
10aspmx1.migadu.com20aspmx2.migadu.com
TXT 3
hosted-email-verify=clkgjvtxv=spf1 include:spf.migadu.com -allgoogle-site-verification=bNBsVaA05LWnh30ITeW9LGh7XYqRjz7F43EM2RqVn4s
NS 2
coco.bunny.netkiki.bunny.net
SOA 1
kiki.bunny.net hostmaster.bunny.net
SRV 2
autodiscover.migadu.com:443 p0imap.migadu.com:993 p0
CAA 7
iodef "mailto:dmarcreports@birkhoff.me"issue "letsencrypt.org"issue "pki.goog"issue "ssl.com"issuewild "letsencrypt.org"issuewild "pki.goog"issuewild "ssl.com"
DMARC_RECORDS 1
v=DMARC1; p=reject; rua=mailto:dmarcreports@birkhoff.me;
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
birkhoff.me |
C=US, O=Let's Encrypt, CN=YR2 | Mon, 12 Oct 2026 17:06:06 +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 (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_1d2aa25e3049d1f3- Output Hash
f9dcf8e597b1b9aa026d8a98f0c73181f918f6e33023c4ad61618ac75f24782e- Signature
ed25519:e002a68b7f25cc96c2237ea9909a231967fc0d0b448f0dc9f25695303f1682510499d4fe23dc617627edd525dab8bee246167a5e9461b2607d397b24312f2103- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast