astro.org

Observed Jul 24, 2026, 06:45 UTC (18h 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.

Verify this receipt yourself + Watch this domain

Guarded by a firewall

Runs onCloudflare

Secured byGoogle Trust Services

Also usesAtlassianGoogle Search Console

IPv6 · tranco

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

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

astro.org

A / AAAA

104.18.19.170104.18.18.1702606:4700::6812:13aa2606:4700::6812:12aa

Cloudflareserves the site

dalary.ns.cloudflare.commatt.ns.cloudflare.com

cloudflare.comanswers its DNS

d320126a.ess.barracudanetworks.comd320126b.ess.barracudanetworks.com

barracudanetworks.comreceives its email

TLS

astro.org

Google Trust Servicesissued its certificate

DNS Records

A 2

104.18.19.170
104.18.18.170

AAAA 2

2606:4700::6812:13aa
2606:4700::6812:12aa

MX 2

5d320126a.ess.barracudanetworks.com
5d320126b.ess.barracudanetworks.com

TXT 13

2rjnf09p2qu95mu84vl77di7ff
4aaih5dreeoh8c0bdgpuml3el9
_oinif79mvkg7cmcleobbms1uuti2mso
asv=6783605545f676cf845798e193f4b7ce
atlassian-domain-verification=1vDHOlJm2zxkiiynTiik8lHNGsQKLVQtoZ/ZTjxwucuzaak0dbk1XvXlq41K/yza
google-site-verification=-j9INb7FCRu9nrHuRn-7tKM6QMEsJ_DbKMB2I3Rbtek
google-site-verification=uPt8-p4pwOADsxDYwhwrnXfFNQuriaP2zRAKRV41Ktg
h94hg1sr8pp1xl37rlb21mj37d2zykx2
v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:fdspfus.freshemail.io ip4:69.26.96.82 include:spf-2248456.jmsend.com include:send.astro.org include:spf.gocadmium.com include:_spf.qualtrics.com ip4:149.72.70.129 ip4:168.245.7.62 ip4:23.21.109.197 ip4:23.21.109.212 ~all
v=DMARC1;p=none;rua=mailto:dfd499b5ec164b90b3ec7b8542747026@dmarc-reports.cloudflare.net,mailto:09122025@astro.org;ruf=mailto:09122025FR@astro.org;

NS 2

dalary.ns.cloudflare.com
matt.ns.cloudflare.com

SOA 1

dalary.ns.cloudflare.com dns.cloudflare.com

CAA 10

issue "comodoca.com"
issue "digicert.com; cansignhttpexchanges=yes"
issue "letsencrypt.org"
issue "pki.goog; cansignhttpexchanges=yes"
issue "ssl.com"
issuewild "comodoca.com"
issuewild "digicert.com; cansignhttpexchanges=yes"
issuewild "letsencrypt.org"
issuewild "pki.goog; cansignhttpexchanges=yes"
issuewild "ssl.com"

TLS Certificates (3)

Common Name	Issuer	Expires
`astro.org`	C=US, O=Google Trust Services, CN=WE1	Wed, 26 Aug 2026 17:34:22 +0000
`WE1`	C=US, O=Google Trust Services LLC, CN=GTS Root R4	Tue, 20 Feb 2029 14:00:00 +0000
`GTS Root R4`	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 (0)

None observed.

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.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_f91f2bce2a572f83
Output Hash: b80e5725084929240a74ecaf6acfe16c8c8add941fbe1d4b6b0bc8f94d6fbf4f
Signature: ed25519:19479d298bd20dac2913213e81e825d86261826c0e36f02fd6cf61ddcb2d53e1916bbf207e0f5d91d870c6d5395c1c6df229a6cf3a339f8a2b51b560b590eb09
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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