rug.nl
Observed 2026-06-15T16:10:59.316008901+00:00 (2h ago). Every field below was attested with an Ed25519 signature at scan time.
Don't trust this page — check the math. Verification runs entirely in your browser. Nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
b62f5a5c-247e-40d2-a418-9a6d00a0932a- Output Hash
7f4a2feedcf28b08df48795c0549efd6a0d7bcef0f6741f698edb502a1a29c0e- Signature
ed25519:70a1433dc45fcd152941a859fcd931d50d20ab7b746a19f4fe5fb42f96d466080ed8f2ea8fbed077e229b6d6b57daab7b1da0f558aff3d09bf416c435bfa190a- Public Key
ed25519:d3f6015a95abdad7e8166ad80938a5885500170bb75f8cdb425b8fd2772bec29- Parent
(genesis)- Plane
- fast
DNS Records
A 1
129.125.2.51
AAAA 1
2001:610:1a08:292:129:125:2:51
MX 5
{"priority":10,"exchange":"ASPMX.L.GOOGLE.COM"}{"priority":20,"exchange":"ALT2.ASPMX.L.GOOGLE.COM"}{"priority":20,"exchange":"ALT1.ASPMX.L.GOOGLE.COM"}{"priority":30,"exchange":"ASPMX3.GOOGLEMAIL.COM"}{"priority":30,"exchange":"ASPMX2.GOOGLEMAIL.COM"}
TXT 9
University of Groningenv=spf1 include:spf1.rug.nl include:spf2.rug.nl include:spf3.rug.nl include:spf4.rug.nl ~allMS=ms97484282bw=7iePWW2zaVtqaRhZZjRWUu985gQ1Ia26nUAJ3BDXMYBpgoogle-site-verification=pMjlXqlOTWrDjxV9AoW_MGyuGOV3lEAsQ7__vv525AgHARICA-iXUSYZelD4KghRtTA8Vgoogle-site-verification=LzOS5q7nSbDRZFZ0FMFKbWSvsfDE8bL861TAh-czT7kmistral-domain-verification=139d17efc022c67581effa2fc6e0bb747d0c9456v=DMARC1;p=none;pct=100;rua=mailto:rugmail@rug.nl,mailto:c4b0a07195@rua.easydmarc.eu;ruf=mailto:mwbeheer@rug.nl;fo=1
NS 5
dns3.rug.nldns1.rug.nlns1.surfnet.nlns2.surfnet.nldns2.rug.nl
SOA 1
{"mname":"ns.rug.nl","rname":"hostmaster.nic.rug.nl","serial":2026061500,"refresh":14400,"retry":3600,"expire":1209600,"minimum":600}
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
www.rug.nl |
C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS ECC 1 | Tue, 01 Dec 2026 08:48:18 +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 |