blc.edu

Observed Aug 12, 2026, 06:06 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of blc.edu was taken 2d ago

blc.edu is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting blc.edu under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch blc.edu Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Guarded by a firewall
Runs onCloudflare
Email byGoogle Workspace
Secured byGoogle Trust Services
Also usesMicrosoft 365AdobeGoogle Search Console
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat blc.edu actually stands on - every host below is a signed observation
blc.edu
A / AAAA
104.20.39.203172.66.159.1112606:4700:10::6814:27cb2606:4700:10::ac42:9f6f
Cloudflareserves the site
NS
walk.ns.cloudflare.comzod.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comalt1.aspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
blc.edu
Google Trust Servicesissued its certificate

DNS Records

A 2

  • 104.20.39.203
  • 172.66.159.111

AAAA 2

  • 2606:4700:10::6814:27cb
  • 2606:4700:10::ac42:9f6f

MX 5

  • 1aspmx.l.google.com
  • 10aspmx2.googlemail.com
  • 10aspmx3.googlemail.com
  • 5alt1.aspmx.l.google.com
  • 5alt2.aspmx.l.google.com

TXT 4

  • MS=DD0F861A850040C1E609338AA643897CC8EA332D
  • adobe-idp-site-verification=675aa41e9d99caa26cac9615da4666f903fa56aa15923f1c5a77feed7493ccfe
  • google-site-verification=bXF4Hdjl7izQQg0HRQ_3Qk6M3aGHnpJY-81ifaVBBNs
  • v=spf1 ip4:198.160.171.0/28 include:_spf.google.com include:spf.watermarkinsights.com ~all

NS 2

  • walk.ns.cloudflare.com
  • zod.ns.cloudflare.com

SOA 1

  • walk.ns.cloudflare.com dns.cloudflare.com

CAA 14

  • iodef "mailto:administrator+security@blc.edu"
  • issue "comodoca.com"
  • issue "digicert.com; cansignhttpexchanges=yes"
  • issue "letsencrypt.org"
  • issue "pki.goog; cansignhttpexchanges=yes"
  • issue "sectigo.com"
  • issue "ssl.com"
  • issue "starfieldtech.com"
  • issuewild "comodoca.com"
  • issuewild "digicert.com; cansignhttpexchanges=yes"

DMARC_RECORDS 1

  • v=DMARC1; p=none; rua=mailto:dmarc_blc@blc.edu; aspf=r; pct=100

TLS Certificates (3)

Common NameIssuerExpires
blc.edu C=US, O=Google Trust Services, CN=WE1 Sun, 11 Oct 2026 03:13:53 +0000
WE1 C=US, O=Google Trust Services LLC, CN=GTS Root R4 Tue, 20 Feb 2029 14:00:00 +0000
GTS Root R4 C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA Fri, 28 Jan 2028 00:00:42 +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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_36f1b055580afc35
Output Hash
add24a53a87721b2ba0c0c7cbd89413f5f064b6275e5cd358f805a3b7270072e
Signature
ed25519:63e90da9ebffe9e04beb228c42cae7c540e283d6b36d6c091cb0b24f57f5c653b70dc6237814ed3a3f2fac907e27d41816d659b0985800099558965a2155c402
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser
CONTINUOUS INTERNET TELEMETRY24H DRIFT45,192 material changesacross 43,178 domains · 24h to ~2h ago · +1,110 vs yesterdayROTATION56 domains moved DNS from koaladns.com to kirklanddc.com, 55 moved backa rotation loop, not a migration · 24hNOW491 curated domains not reachablelast probe, steadySITE ERRORS36,483 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 115,730 sites429 rate-limit / 403 bot-block, a posture signal