uu.nl
Observed 2026-07-18T00:37:45.023Z (6h ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onCloudflare
Email byMicrosoft 365
Registered withSURF B.V.
Also usesAtlassianGoogle Search Console
IPv6 · 9 subdomains · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat uu.nl actually stands on - every host below is a signed observation
uu.nl
A / AAAA
83.217.76.862a00:1c98:10:25::84
Cloudflareserves the site
NS
ns1.zurich.surf.netaustralie.net.uu.nlazie.net.uu.nlns1.surfnet.nl
surf.net + uu.nl + moreanswers its DNS
MX
uu-nl.mail.protection.outlook.com
Microsoft 365receives its email
HTTPS probe
redirect
Redirecting (3xx) 301 → https://www.uu.nl/
HTTP status301
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time804 ms
DNS resolutionNOERROR
Redirect chain
https://www.uu.nl/Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
A 1
83.217.76.86
AAAA 1
2a00:1c98:10:25::84
MX 1
0uu-nl.mail.protection.outlook.com
TXT 24
atlassian-sending-domain-verification=72791b6c-e695-4116-8bbc-dd41675e5b98pipoatlassian-domain-verification=0iPg6zRItjFaaj30LVQ0AjAJ4N66NNbKdP5fnJ0H6Qg9optMLXJGhlkMR0Jqi/yOcisco-ci-domain-verification=5842c46b62263bd02abd37a7754654a4dff107f06a2b66a8477e2cdc761505a8MS=ms59510356pardot997561=644046e4432766fb73dbc13a959693022e9e4bdeebddbd369e6a7603dc62aafa00D7Q000006uk9x=1TBQs00000007SxWLgjk988Kp7Qba9XFltAfkL2Toa2uc3OdjwkPdG8qI4iNXGc14jtd3MM7kC70OPfYW0cWVz5mHMuv5jaMkWcQg==QTXhE9VligPDA5a2xw9zRjxg01lC8iPwj7ouX3LnksdJltyh26E0WnV/t78xAeBXBb+8OJoWhfRRCJETQcCA1Q==HARICA-qgr0NyZthcl3PvsrBJ5
NS 4
ns1.zurich.surf.netaustralie.net.uu.nlazie.net.uu.nlns1.surfnet.nl
SOA 1
dns.uu.nl hostmaster.uu.nl
CAA 9
iodef mailto:hostmaster@uu.nlissue harica.grissue sectigo.comissue digicert.comissuewild letsencrypt.orgissuewild harica.grissuewild digicert.comissue letsencrypt.orgissuewild sectigo.com
TLS Certificates (0)
None.
Subdomains (9)
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 receiptEd25519 Receipt
- Receipt ID
68a54eb1-9d20-400f-9f2f-7c4c47cee523- Output Hash
dfe704a8e3e6a041140239aa2593070653f88c4f1d3fa6bcf569aad733f9a296- Signature
ed25519:decc7238872ff78e6f31176fab4380a0757ce3c07550550fcf2306162d828f2dc2979e89b0ef6a0c3dff756b90552b70c130c2f49539792e33055ba0adc79403- Public Key
ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff- Parent
(genesis)- Plane
- fast