observablehq.com

Observed Jul 18, 2026, 14:05 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search ConsoleStripe

IPv6 · tranco_100k

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

INFRASTRUCTURE MAPwhat observablehq.com actually stands on - every host below is a signed observation

observablehq.com

A / AAAA

172.66.159.189104.20.40.352606:4700:10::6814:28232606:4700:10::ac42:9fbd

Cloudflareserves the site

lily.ns.cloudflare.comrodrigo.ns.cloudflare.com

cloudflare.comanswers its DNS

aspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comalt1.aspmx.l.google.com+1 more

Google Workspacereceives its email

TLS

observablehq.com

Let's Encryptissued its certificate

DNS Records

A 2

172.66.159.189
104.20.40.35

AAAA 2

2606:4700:10::6814:2823
2606:4700:10::ac42:9fbd

MX 5

1aspmx.l.google.com
10aspmx2.googlemail.com
10aspmx3.googlemail.com
5alt1.aspmx.l.google.com
5alt2.aspmx.l.google.com

TXT 6

google-site-verification=Cb1i2q7oVgeeYvCfXyzou6YrKo5cPOGleoeIojAGqLM
google-site-verification=QXf_Aefl2eYlYwbvNcVW6i2ZXZSBBsDrt33jtLObaP4
google-site-verification=znk05CPL4rJ7chACyGnKVNRKU5OhUj2oc06pPin1ExE
stripe-verification=485f6c59830fdb989240210313e21099b01a2efdbea44f373075d7c8150cc485
v=spf1 include:_spf.google.com include:sendgrid.net include:_spf.sparkpostmail.com -all
v=DMARC1; p=quarantine; pct=100; rua=mailto:visnu+dmarc@observablehq.com

NS 2

lily.ns.cloudflare.com
rodrigo.ns.cloudflare.com

SOA 1

lily.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (4)

Common Name	Issuer	Expires
`observablehq.com`	C=US, O=Let's Encrypt, CN=YE1	Fri, 25 Sep 2026 19:15:09 +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 observablehq.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_1fc09f7b7eeb72ec
Output Hash: 4b403528b377131af374d8af1e1ebc914842139c04b347ed64c37d74a8e81edf
Signature: ed25519:c49bf24f52b800cbfc8b96b13f125370344736531c428bc898abc77fb5822c6fa84c8ce4dfe0de63e056e8b9004bada1c00ca207f3ddf765bae66ddccc65c90c
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/observablehq.com