edu.nl

Observed Jul 26, 2026, 01:03 UTC (6d 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.

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Up right now

Secured byHellenic Academic and Research Institutions CA

IPv6 · 2 subdomains · majestic

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

INFRASTRUCTURE MAPwhat edu.nl actually stands on - every host below is a signed observation

edu.nl

A / AAAA

145.97.20.102001:610:188:408::10

2001serves the site

ns1.zurich.surf.netns1.surfnet.nlns2.surfnet.nlns3.surfnet.nl

surf.net + surfnet.nlanswers its DNS

TLS

edu.nl

Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

145.97.20.10

AAAA 1

2001:610:188:408::10

MX 1

TXT 3

v=spf1 -all
HARICA-SeJ5SSlILsuGjPVaoof
v=DMARC1; p=reject; rua=mailto:di6leuvu@ag.eu.dmarcadvisor.com;

NS 4

ns1.zurich.surf.net
ns1.surfnet.nl
ns2.surfnet.nl
ns3.surfnet.nl

SOA 1

ns1.surfnet.nl dns-beheer.surf.nl

CAA 4

iodef "mailto:paul@surfnet.nl"
issue "harica.gr"
issue "letsencrypt.org"
issue "sectigo.com"

TLS Certificates (3)

Common Name	Issuer	Expires
`edu.nl`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1	Fri, 16 Oct 2026 07:18:16 +0000
`GEANT TLS RSA 1`	C=GR, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS RSA Root CA 2021	Sat, 31 Dec 2039 11:14:59 +0000
`HARICA TLS RSA Root CA 2021`	C=GR, L=Athens, O=Hellenic Academic and Research Institutions Cert. Authority, CN=Hellenic Academic and Research Institutions RootCA 2015	Fri, 31 Aug 2029 07:41:54 +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 edu.nl. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_f550e02287322135
Output Hash: 27a3b7ced5ec9a52f03320f24386f175f62f7153dff09e123a717c25dbcbf4a4
Signature: ed25519:5557677059bb18b831b24c6d209c329eac72840189665526e0f5bf75d3a73913485905ead68620426d8a2ad3951fabe9a09969119922476f69cbbcfac7d5aa01
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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