astropy.org
Observed Jul 24, 2026, 10:57 UTC (6h 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 byLet's Encrypt
Also usesGoogle Search Console
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat astropy.org actually stands on - every host below is a signed observation
astropy.org
A / AAAA
185.199.108.153
unattributedserves the site
NS
dns1.registrar-servers.comdns2.registrar-servers.com
registrar-servers.comanswers its DNS
MX
aspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.com+1 more
Google Workspacereceives its email
TLS
www.astropy.org
Let's Encryptissued its certificate
DNS Records
A 1
185.199.108.153
MX 5
1aspmx.l.google.com5alt1.aspmx.l.google.com5alt2.aspmx.l.google.com10aspmx2.googlemail.com10aspmx3.googlemail.com
TXT 2
google-site-verification=i8bKiJAyPbzBmqadzcrWmZBkhe3QabUkTyQ28AOvBx4v=DMARC1; p=none; rua=mailto:dmarc@astropy.org
NS 2
dns1.registrar-servers.comdns2.registrar-servers.com
SOA 1
dns1.registrar-servers.com hostmaster.registrar-servers.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.astropy.org |
C=US, O=Let's Encrypt, CN=YR1 | Wed, 30 Sep 2026 16:32:22 +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 (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 receiptPut the receipt on your own site. A live badge showing what DomainDrift observes and signs for astropy.org. It updates itself. It attests a signed observation - not that the site is safe.
<a href="https://domaindrift.io/t/astropy.org">
<img src="https://domaindrift.io/badge/astropy.org.svg"
width="300" height="64" alt="DomainDrift signed observations for astropy.org">
</a>
Ed25519 Receipt
- Receipt ID
rcpt_812d67cc7ace38c8- Output Hash
539ee8275342222774e6127b50c057c6a96e39fd90c7bcf5bac36034543b8a83- Signature
ed25519:fea0fd45bf1efb64c50f37bedb1819d6a5904c425fcfa1bf6b9f17ea1110f964b658bf228a0589638dd1a7c75e5c32fb822610fec7c2185ca8d6450dd13d7309- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast