CONTINUOUS INTERNET TELEMETRY24H DRIFT43,836 material changesacross 42,208 domains · 24h to ~6h ago · -18,240 vs yesterdayROTATION55 domains moved DNS from kirklanddc.com to koaladns.com, 53 moved backa rotation loop, not a migration · 24hREGISTRAR DRIFT1 changed registrar24hNOW532 curated domains not reachablelast probe, steadySITE ERRORS33,888 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 118,377 sites429 rate-limit / 403 bot-block, a posture signal

languagecourse.net

Observed Aug 3, 2026, 01:31 UTC (4d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of languagecourse.net was taken 4d ago

languagecourse.net is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting languagecourse.net 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 languagecourse.net Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Verify this receipt yourself + Watch this domain
Up right now
Runs onCloudflare
Email byGoogle Workspace
Secured byLet's Encrypt
IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat languagecourse.net actually stands on - every host below is a signed observation
languagecourse.net
A / AAAA
104.26.10.69172.67.72.171104.26.11.692606:4700:20::ac43:48ab+2 more
Cloudflareserves the site
NS
adel.ns.cloudflare.comdoug.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.commxlb.ispgateway.de+2 more
Google Workspacereceives its email
TLS
languagecourse.net
Let's Encryptissued its certificate

DNS Records

A 3

  • 104.26.10.69
  • 172.67.72.171
  • 104.26.11.69

AAAA 3

  • 2606:4700:20::ac43:48ab
  • 2606:4700:20::681a:b45
  • 2606:4700:20::681a:a45

MX 6

  • 1aspmx.l.google.com
  • 10alt3.aspmx.l.google.com
  • 10alt4.aspmx.l.google.com
  • 100mxlb.ispgateway.de
  • 5alt1.aspmx.l.google.com
  • 5alt2.aspmx.l.google.com

TXT 1

  • v=spf1 ip4:138.201.252.126 ip6:2a01:4f8:173:2349::2 ip4:138.201.252.85 ip6:2a01:4f8:173:2342::2 include:_spf.google.com -all

NS 2

  • adel.ns.cloudflare.com
  • doug.ns.cloudflare.com

SOA 1

  • adel.ns.cloudflare.com dns.cloudflare.com

DMARC_RECORDS 1

  • v=DMARC1; p=none; fo=1; rua=mailto:dmarc-reports@languagecourse.net; ruf=mailto:dmarc-reports@languagecourse.net

TLS Certificates (4)

Common NameIssuerExpires
languagecourse.net C=US, O=Let's Encrypt, CN=YE2 Fri, 30 Oct 2026 17:57:21 +0000
YE2 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 (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_ef78a62fc3198aa5
Output Hash
f5161bbdffdbedbc2f74b7076c1229112c5f38a16c3ec20c3e9d162d83ffe18e
Signature
ed25519:a5c51e8bf5b325b52a91ead23734d5813a28e6eb26dc60a7515933bd3027fdec505b3761854e005717fa41135446790407809455595b2403b717a72d86622f06
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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