CONTINUOUS INTERNET TELEMETRY24H DRIFT5,762 material changesacross 5,364 domains · 24h to ~20m ago · -3,001 vs yesterdayNOW560 curated domains not reachablelast probe, steadySITE ERRORS34,304 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,289 sites429 rate-limit / 403 bot-block, a posture signalMOVERokta.comNo mail routes in the latest observation

yc.edu

Observed Aug 2, 2026, 21:21 UTC (6h 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 (SPF sender)
Secured byInternet2
Also usesGoogle Search Console
tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat yc.edu actually stands on - every host below is a signed observation
yc.edu
A / AAAA
198.60.125.195
unattributedserves the site
NS
ns41.constellix.netns51.constellix.netns61.constellix.netns11.constellix.com+2 more
constellix.net + constellix.comanswers its DNS
MX
d109790b.ess.barracudanetworks.comd109790a.ess.barracudanetworks.com
Google (SPF sender)receives its email
TLS
*.yc.edu
Internet2issued its certificate

DNS Records

A 1

  • 198.60.125.195

MX 2

  • 10d109790b.ess.barracudanetworks.com
  • 5d109790a.ess.barracudanetworks.com

TXT 15

  • 5383a20056b710bbaee72eeae9f6fde4d82176d971fc94d6d9a9a743a3ede3c6
  • apple-domain-verification=tJtgLRsFcIW6nSUg
  • 605bbc29cf2776340fecc7d8059e17cfe147a2e378b7371c08b6a8657dded400
  • MS=ms60667051
  • amazonses:d2CRHD/muvfJH4xY+taZ0UKGW1ahcJK9jWTBdJbEvlo=
  • adobe-idp-site-verification=11d05925-d463-4438-bbdd-ad9376f74743
  • 3cd034aefa337d399fd8dfd135f59c7a
  • 45lt4V67DNcGdDrCB2AoMI9Emec5RdeatVOfjfhLeYbjHixUXOmZPkOG2w/1WJpr8bsqVZhnZsRNKLHunNG3Bw==
  • google-site-verification=wlbcv3VrTRwPNVv574Y6Xj1tAazlfJFb3XRnJ-DFC5g
  • e2ma-verification=lg3cb

NS 6

  • ns41.constellix.net
  • ns51.constellix.net
  • ns61.constellix.net
  • ns11.constellix.com
  • ns21.constellix.com
  • ns31.constellix.com

SOA 1

  • ns11.constellix.com dns.constellix.com

SRV 2

  • expressway-e.yc.edu:5060 p10
  • expressway-e.yc.edu:5061 p10

CAA 5

  • issue "letsencrypt.org"
  • issue "comodoca.com"
  • issue "sectigo.com"
  • issue "amazon.com"
  • issue "emsign.com"

DMARC_RECORDS 1

  • v=DMARC1; p=reject; sp=quarantine; rua=mailto:4dfd2bb0@mxtoolbox.dmarc-report.com,mailto:9a6c0de9f05e410@rep.dmarcanalyzer.com,mailto:rua+yc.edu@dmarc.barracudanetworks.com; ruf=mailto:4dfd2bb0@forensics.dmarc-report.com,mailto:9a6c0de9f05e410@for.dmarcanalyzer.com,mailto:ruf+yc.edu@dmarc.barracudanetworks.com; fo=0:1:d:s; pct=100

BIMI_RECORDS 1

  • v=BIMI1; l=https://images.bimi-report.com/yc.edu.svg

TLS Certificates (3)

Common NameIssuerExpires
*.yc.edu C=US, O=Internet2, CN=InCommon RSA Server CA 2 Sat, 15 Aug 2026 23:59:59 +0000
InCommon RSA Server CA 2 C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority Mon, 15 Nov 2032 23:59:59 +0000
USERTrust RSA Certification Authority C=GB, ST=Greater Manchester, L=Salford, O=Comodo CA Limited, CN=AAA Certificate Services Sun, 31 Dec 2028 23:59:59 +0000

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

Ed25519 Receipt

Receipt ID
rcpt_8f3515ce4c544b51
Output Hash
a7b41efdef5d91329a360e473d7f45f3e56d0a42a3fc07e85b90080bf78a33b3
Signature
ed25519:41b3a8a31a39a80a41f90ad9340e20731e51b9520a1ffcee5d342180914cc722c4b9b842b73b061c4b8f0cc7a5bdfc085ef634aea6bb1c6b6034d557ca298f0a
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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