astro.build

Observed 2026-07-13T00:04:34.907981228+00:00 (22h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onAmazon

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search Console

IPv6 · 1 subdomain · misc

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat astro.build actually stands on - every host below is a signed observation

astro.build

A / AAAA

18.208.88.15798.84.224.1112600:1f18:16e:df01::2592600:1f18:16e:df01::258

Amazonserves the site

felicity.ns.cloudflare.comkara.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

astro.build

Let's Encryptissued its certificate

DNS Records

A 2

18.208.88.157
98.84.224.111

AAAA 2

2600:1f18:16e:df01::259
2600:1f18:16e:df01::258

MX 5

1aspmx.l.google.com
10alt3.aspmx.l.google.com
10alt4.aspmx.l.google.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com

TXT 1

google-site-verification=fLrdzEKoLvdYXcbj3tQrzT361r9d9_iEzJKfqZ8-2V8

NS 2

felicity.ns.cloudflare.com
kara.ns.cloudflare.com

SOA 1

felicity.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common Name	Issuer	Expires
`astro.build`	C=US, O=Let's Encrypt, CN=YE2	Wed, 02 Sep 2026 07:37:49 +0000
`YE2`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

www.astro.build

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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for astro.build. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/astro.build">
  <img src="https://domaindrift.io/badge/astro.build.svg"
       width="300" height="64" alt="DomainDrift signed observations for astro.build">
</a>

Ed25519 Receipt

Receipt ID: d4f6c4f9-98d7-4b0f-bc9a-14e8ac84d426
Output Hash: ceca6b9303c0d0b94d78b0a29f090f7c86f2a34bc4c1a646ad110a229b5ab33c
Signature: ed25519:be1b0d0a96f00096e83cfd6824e1969ae82bbe759580b1172715005fe03e5416b2d9f80ed71cd5d02bec4a07aeafba543bdb549e3dc9c6f055aec29417d00703
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/astro.build