CONTINUOUS INTERNET TELEMETRY24H DRIFT1,754 material changesacross 1,559 domains · +332 vs yesterdayDNS DRIFT2 domains changed DNS providertop destination yandexcloud.net · -19 vs yesterdayEMAIL DRIFT1 domain switched email providertop destination google.com · -4 vs yesterdayNOW1,034 curated domains not answering+324 vs yesterdayERRORS4,652 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED7,775 throttled or blocked our scanner429 rate-limit / 403 bot-blockMOVERtiktok.comDMARC enforcement downgraded: p=reject → no DMARC record24H DRIFT1,754 material changesacross 1,559 domains · +332 vs yesterdayDNS DRIFT2 domains changed DNS providertop destination yandexcloud.net · -19 vs yesterdayEMAIL DRIFT1 domain switched email providertop destination google.com · -4 vs yesterdayNOW1,034 curated domains not answering+324 vs yesterdayERRORS4,652 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED7,775 throttled or blocked our scanner429 rate-limit / 403 bot-blockMOVERtiktok.comDMARC enforcement downgraded: p=reject → no DMARC record

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.pt
  • 150mx22.ulisboa.pt
  • 150mx23.ulisboa.pt
  • 150mx24.ulisboa.pt

TXT 4

  • Antiga UTL
  • Universidade de Lisboa
  • HARICA-GWohQgu5VIsjbaqWjeN
  • v=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.pt
  • b.ul.pt
  • ns1.tecnico.ulisboa.pt
  • ns2.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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for utl.pt. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
96231a49-5bf9-4c7d-9866-bb6bc139cbd3
Output Hash
aecb7fcb700604e96ac6c2abbd79d271c8f8e9516e4154c62395d05d4de66d2a
Signature
ed25519:d51cc3e47070ecce30c2887118e2674ac7b3304f4054524e308188b67d48e9ae51430f32cb3b316171c4bfbcccc2cde2dd13b030d1129b6ce0df0ed1ec9fad0a
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser