CONTINUOUS INTERNET TELEMETRY24H DRIFT8,763 material changesacross 8,372 domains · 24h to ~2h ago · -32,097 vs yesterdayNOW563 curated domains not reachablelast probe, steadySITE ERRORS34,264 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,299 sites429 rate-limit / 403 bot-block, a posture signalMOVERokta.comNo mail routes in the latest observation

utn.ac.cr

Observed Jul 25, 2026, 07:21 UTC (9d 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
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesGoogle Search ConsoleZoom
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat utn.ac.cr actually stands on - every host below is a signed observation
utn.ac.cr
A / AAAA
144.217.241.78
unattributedserves the site
NS
ns1.utn.ac.crns2.utn.ac.cr
ac.cranswers its DNS
MX
ASPMX3.GOOGLEMAIL.COMALT2.ASPMX.L.GOOGLE.COMASPMX.L.GOOGLE.COMALT1.ASPMX.L.GOOGLE.COM+1 more
Google Workspacereceives its email
TLS
utn.ac.cr
Let's Encryptissued its certificate

DNS Records

A 1

  • 144.217.241.78

MX 5

  • 10ASPMX3.GOOGLEMAIL.COM
  • 5ALT2.ASPMX.L.GOOGLE.COM
  • 1ASPMX.L.GOOGLE.COM
  • 5ALT1.ASPMX.L.GOOGLE.COM
  • 10ASPMX2.GOOGLEMAIL.COM

TXT 5

  • v=spf1 ip4:186.33.19.84 ip4:186.33.19.85 ip4:186.33.19.87 ip4:186.33.19.81 ip4:200.229.5.194 ip4:49.12.123.114 ip4:65.21.204.248 include:_spf.google.com include:spfa.cpmails.com include:1ly6za480.spf.checkpoint-spf.com -all
  • ZOOM_verify_IqE75buGSM2H_u7e19OpTw
  • google-site-verification=1S9ef2Q3VFBY5DO49tOlw3XPx3NVU6oas6v0DTJhlxg
  • google-site-verification=_Vbmb-hvJgEFQMfZbBHIAJXHZe2vZScTRyaLxONSpL8
  • v=DMARC1; p=quarantine; sp=none; adkim=r; aspf=r; ruf=mailto:dmarc@utn.ac.cr,mailto:universidadtecnicanacional@us.cp-dmarc.com; rua=mailto:universidadtecnicanacional@us.cp-dmarc.com,mailto:dmarc@utn.ac.cr;

NS 2

  • ns1.utn.ac.cr
  • ns2.utn.ac.cr

SOA 1

  • ns2.utn.ac.cr webmaster.utn.ac.cr

TLS Certificates (4)

Common NameIssuerExpires
utn.ac.cr C=US, O=Let's Encrypt, CN=YE1 Thu, 01 Oct 2026 19:06:38 +0000
YE1 C=US, O=ISRG, CN=Root YE Sat, 02 Sep 2028 23:59:59 +0000
Root YE C=US, O=Internet Security Research Group, CN=ISRG Root X2 Thu, 02 Sep 2032 23:59:59 +0000
ISRG Root X2 C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

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.

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Ed25519 Receipt

Receipt ID
rcpt_a06ad1e221b48f1a
Output Hash
612770f69ef33f519ba194f45200a79b214531317342423f41574d72eb0b66b0
Signature
ed25519:abfd285e10959f2de85843c5716fba6ae326f2e7e2d6bf3dc6d3f8e38bf3e246d115f6e923010b153082959eb88c7866d66bc74b1e2577678caa35822a6bcf0b
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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