astrometry.net

Observed Jul 24, 2026, 06:54 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

Up right now

Secured byLet's Encrypt

tranco

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

INFRASTRUCTURE MAPwhat astrometry.net actually stands on - every host below is a signed observation

astrometry.net

A / AAAA

216.165.26.52

unattributedserves the site

ns-91-b.gandi.netns-85-a.gandi.netns-185-c.gandi.net

gandi.netanswers its DNS

mail.astrometry.net

astrometry.netreceives its email

TLS

astrometry.net

Let's Encryptissued its certificate

DNS Records

A 1

216.165.26.52

MX 1

10mail.astrometry.net

TXT 1

v=spf1 ip4:206.12.93.163 ~all

NS 3

ns-91-b.gandi.net
ns-85-a.gandi.net
ns-185-c.gandi.net

SOA 1

ns1.gandi.net hostmaster.gandi.net

TLS Certificates (4)

Common Name	Issuer	Expires
`astrometry.net`	C=US, O=Let's Encrypt, CN=YE1	Fri, 09 Oct 2026 11:55:52 +0000
`YE1`	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 (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 astrometry.net. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_95b78ac6acc34c24
Output Hash: 84aa5c7219a16639908d2c66cc1b1f8fd3b47ca07626ab42be773cb1bc36ee8d
Signature: ed25519:f27ef7274fdb7cffa4f7c1c1c35f1a5f43f278160f38cf66fcd27b3aa8f8809f9873ce50a89e7ea4aeff65fe875f186971deb32068dd165418265227b8c46f01
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

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Permalink: https://domaindrift.io/t/astrometry.net