CONTINUOUS INTERNET TELEMETRY24H DRIFT23,583 material changesacross 21,757 domains · 24h to ~3h agoROTATION57 domains moved DNS from koaladns.com to kirklanddc.com, 56 moved backa rotation loop, not a migration · 24hEMAIL DRIFT1 domain switched email providertop destination ~NOW603 curated domains not reachablelast probe, steadySITE ERRORS33,520 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 118,157 sites429 rate-limit / 403 bot-block, a posture signal

lett.app

Observed Aug 2, 2026, 17:11 UTC (6d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of lett.app was taken 6d ago

lett.app is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting lett.app 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 lett.app Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Up right now
Email byZoho Mail
Secured byLet's Encrypt
Also usesGoogle Search Console
IPv6 · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat lett.app actually stands on - every host below is a signed observation
lett.app
A / AAAA
137.131.30.302603:c020:21:8800:0:1bd:310e:4f28
2603serves the site
NS
daphne.ns.cloudflare.comkeaton.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
mx.zoho.commx2.zoho.commx3.zoho.com
Zoho Mailreceives its email
TLS
lett.app
Let's Encryptissued its certificate

DNS Records

A 1

  • 137.131.30.30

AAAA 1

  • 2603:c020:21:8800:0:1bd:310e:4f28

MX 3

  • 10mx.zoho.com
  • 20mx2.zoho.com
  • 50mx3.zoho.com

TXT 2

  • v=spf1 include:zohomail.com ~all
  • google-site-verification=STQ46uy8D7ZS1jYA7TAQ9KRr7V7YONdeZ2rZR2GBEk8

NS 2

  • daphne.ns.cloudflare.com
  • keaton.ns.cloudflare.com

SOA 1

  • daphne.ns.cloudflare.com dns.cloudflare.com

CAA 1

  • issue "letsencrypt.org"

DMARC_RECORDS 1

  • v=DMARC1; p=reject; rua=mailto:ec8697a5f58c4343b55447d7babbeda6@dmarc-reports.cloudflare.net

TLS Certificates (4)

Common NameIssuerExpires
lett.app C=US, O=Let's Encrypt, CN=YE2 Mon, 05 Oct 2026 17:53:40 +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_acfbdb97e34cabe9
Output Hash
c5818ed8e3207eb20d2abe6f06a311732168e70a3ee8f753306259b3e929acc8
Signature
ed25519:9c62d556172e135cd6d92eccb972a72348cedcc6f8e97324c823e5c0a476b8fa9743e1b063b636bc7bf734f839cb9b9855c7253c7cfe9e8a48689cd38ab04909
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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