jupyter.org

Observed Jul 24, 2026, 02:38 UTC (4h 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

Runs onFastly

Email byGoogle Workspace

Secured byLet's Encrypt

Also usesGoogle Search Console

IPv6 · data_analytics

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

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

jupyter.org

A / AAAA

185.199.110.153185.199.108.153185.199.111.153185.199.109.153+4 more

Fastlyserves the site

marek.ns.cloudflare.comvida.ns.cloudflare.com

cloudflare.comanswers its DNS

smtp.google.commxa.mailgun.orgmxb.mailgun.org

Google Workspacereceives its email

TLS

jupyter.org

Let's Encryptissued its certificate

DNS Records

A 4

185.199.110.153
185.199.108.153
185.199.111.153
185.199.109.153

AAAA 4

2606:50c0:8001::153
2606:50c0:8002::153
2606:50c0:8000::153
2606:50c0:8003::153

MX 3

1smtp.google.com
10mxa.mailgun.org
10mxb.mailgun.org

TXT 5

google-site-verification=fVlDepxF22JWcfBgNXuupDKogRCzKmILf8pUE2Dmtw4
google-site-verification=jYjylQP5dxEXkTnNQ0VFEvcRe18Pf5dzBQFBJJfj4ys
google-site-verification=wc8MS2293sObUwmOvVySZ2vsG3Uox_sHkb3hwvtyHZw
v=spf1 include:mailgun.org ~all
v=DMARC1; p=none; rua=mailto:dmarc-report@ipython.org

NS 2

marek.ns.cloudflare.com
vida.ns.cloudflare.com

SOA 1

marek.ns.cloudflare.com dns.cloudflare.com

TLS Certificates (3)

Common Name	Issuer	Expires
`jupyter.org`	C=US, O=Let's Encrypt, CN=YR1	Sat, 19 Sep 2026 11:01:54 +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 (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 jupyter.org. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_c2ff3f80870a4374
Output Hash: 255cd5a4bf8deed079e1c3c16ccf6bad4028b3380c7e008577977f03bef44c34
Signature: ed25519:3083c9f11cc00fbe4484d50e3e490c9da8fcc92aeed59a0d644b2b8ee7eddcd6c847679fc2a6b9a1069f30c2dce1a48e4d5b138de069befda76ba2b84a11750e
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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