polytechnique.fr

Observed Jul 18, 2026, 12:06 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onRenater

Email bySalesforce

Secured byHellenic Academic and Research Institutions CA

Registered withGIP RENATER

Also usesZoomGoogle Search Console

2 subdomains · education_expanded

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

INFRASTRUCTURE MAPwhat polytechnique.fr actually stands on - every host below is a signed observation

polytechnique.fr

A / AAAA

129.104.30.29

Renaterserves the site

ns2.nic.frmilou.polytechnique.frpicaros.polytechnique.frrackham.polytechnique.fr

nic.fr + polytechnique.franswers its DNS

mx-a.polytechnique.frmx-b.polytechnique.fr

Salesforcereceives its email

TLS

www.polytechnique.fr

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

129.104.30.29

MX 2

10mx-a.polytechnique.fr
10mx-b.polytechnique.fr

TXT 5

MS=ms73317296
ZOOM_verify_VW1GDtnRTGa6Iydcn9vABQ
google-site-verification=PweeHgOqAJqmpj_Rm1FawgAA-WKuD5LTuwGnAMchkP0
v=spf1 mx ip4:129.104.30.11 ip4:129.104.30.12 ip4:129.104.30.128/28 ip4:129.104.0.0/24 include:_spf.salesforce.com include:spf.protection.outlook.com ?all
v=DMARC1; p=none; pct=100; rua=mailto:dmarc-rua@polytechnique.fr; adkim=s; aspf=s;

NS 4

ns2.nic.fr
milou.polytechnique.fr
picaros.polytechnique.fr
rackham.polytechnique.fr

SOA 1

milou.polytechnique.fr hostmaster.polytechnique.fr

TLS Certificates (3)

Common Name	Issuer	Expires
`www.polytechnique.fr`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS ECC 1	Thu, 26 Nov 2026 06:08:46 +0000
`GEANT TLS ECC 1`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS ECC Root CA 2021	Sat, 31 Dec 2039 11:14:20 +0000
`HARICA TLS ECC Root CA 2021`	C=GR, L=Athens, O=Hellenic Academic and Research Institutions Cert. Authority, CN=Hellenic Academic and Research Institutions ECC RootCA 2015	Fri, 31 Aug 2029 07:44:36 +0000

Subdomains (2)

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

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

Ed25519 Receipt

Receipt ID: 34bde986-fbdc-4dd1-a4e3-5cdaf732b003
Output Hash: 67393fdc40556e70b704c8e27c6f5f47865fa980f63fcf140b82d4a25a02ebb2
Signature: ed25519:a956d468c63ee7f4a8d54a92b3bdbdde6a00f7b15c1704eb5a7d02b0053174ce7fac4982ffd3fd4094005466d975909096d1fe75e2f56d3c378a11f87bd5d100
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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