dopenotes.io
Observed Jul 29, 2026, 07:14 UTC (12h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.
Up right now
Email byGoogle Workspace
Secured byGoogle Trust Services
Also usesGoogle Search Console
IPv6 · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat dopenotes.io actually stands on - every host below is a signed observation
dopenotes.io
A / AAAA
216.239.32.21216.239.34.21216.239.36.21216.239.38.21+4 more
2001serves the site
NS
ns-cloud-d1.googledomains.comns-cloud-d2.googledomains.comns-cloud-d3.googledomains.comns-cloud-d4.googledomains.com
googledomains.comanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
dopenotes.io
Google Trust Servicesissued its certificate
DNS Records
A 4
216.239.32.21216.239.34.21216.239.36.21216.239.38.21
AAAA 4
2001:4860:4802:32::152001:4860:4802:34::152001:4860:4802:36::152001:4860:4802:38::15
MX 5
1aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10alt3.aspmx.l.google.com10alt4.aspmx.l.google.com
TXT 10
firebase=dopenotes-20ee4v=spf1 include:_spf.google.com ~allv=spf1 include:spf.mailjet.com ?allmandrill_verify.qSYPrXp1BKW52EviOnB79wv=spf1 include:_spf.firebasemail.com ~allv=DMARC1; p=none; rua=mailto:noreply@dopenotes.iov=DMARC1; p=none; rua=mailto:tim.holmgren@dopenotes.iov=spf1 include:spf.mailjet.com include:_spf.google.com ~allv=spf1 include:spf.mailjet.com include:_spf.firebasemail.com ~allgoogle-site-verification=du6PWDWpegPJEwwb4C32Pr6qxqzxBWvRrHAGJz8ty7U
NS 4
ns-cloud-d1.googledomains.comns-cloud-d2.googledomains.comns-cloud-d3.googledomains.comns-cloud-d4.googledomains.com
SOA 1
ns-cloud-d1.googledomains.com cloud-dns-hostmaster.google.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
dopenotes.io |
C=US, O=Google Trust Services, CN=WR3 | Mon, 19 Oct 2026 09:00:56 +0000 |
WR3 |
C=US, O=Google Trust Services LLC, CN=GTS Root R1 | Tue, 20 Feb 2029 14:00:00 +0000 |
GTS Root R1 |
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 (1)
The proof
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; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_aee697ad84b6b7b5- Output Hash
616d70eb3531ce262d22b97594efd513ea99ce0ed1e3ce1cb3475c7e38879d37- Signature
ed25519:50468bf354f2b5c6aa18852d789426e12b9d1a872a09d32f1d341ca5e45f4ea0c52421ece1dbca08804328f33bf0a2b449f658f36b0d97fe80133313350ca806- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast