utl.pt
Observed 2026-07-17T13:53:16.877784547+00:00 (19h ago). Every field below was attested with an Ed25519 signature at scan time.
Not responding
Signed observation on record.
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat utl.pt actually stands on - every host below is a signed observation
utl.pt
NS
a.ul.ptb.ul.ptns1.tecnico.ulisboa.ptns2.tecnico.ulisboa.pt
ul.pt + ulisboa.ptanswers its DNS
MX
mx21.ulisboa.ptmx22.ulisboa.ptmx23.ulisboa.ptmx24.ulisboa.pt
ulisboa.ptreceives its email
DNS Records
MX 4
150mx21.ulisboa.pt150mx22.ulisboa.pt150mx23.ulisboa.pt150mx24.ulisboa.pt
TXT 4
Antiga UTLUniversidade de LisboaHARICA-GWohQgu5VIsjbaqWjeNv=spf1 a:mx21.ulisboa.pt a:mx22.ulisboa.pt a:mx23.ulisboa.pt a:mx24.ulisboa.pt include:ulisboa.pt a ip4:193.137.196.67 ip6:2001:690:a00:1036::67 -all
NS 4
a.ul.ptb.ul.ptns1.tecnico.ulisboa.ptns2.tecnico.ulisboa.pt
SOA 1
a.ul.pt sistemas.reitoria.ulisboa.pt
TLS Certificates (0)
None.
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 receiptEd25519 Receipt
- Receipt ID
96231a49-5bf9-4c7d-9866-bb6bc139cbd3- Output Hash
aecb7fcb700604e96ac6c2abbd79d271c8f8e9516e4154c62395d05d4de66d2a- Signature
ed25519:d51cc3e47070ecce30c2887118e2674ac7b3304f4054524e308188b67d48e9ae51430f32cb3b316171c4bfbcccc2cde2dd13b030d1129b6ce0df0ed1ec9fad0a- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast