CONTINUOUS INTERNET TELEMETRY24H DRIFT34,698 material changesacross 32,925 domains · 24h to ~3h agoROTATION54 domains moved DNS from koaladns.com to kirklanddc.com, 51 moved backa rotation loop, not a migration · 24hNOW594 curated domains not reachablelast probe, steadySITE ERRORS33,540 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 118,506 sites429 rate-limit / 403 bot-block, a posture signal

lettro.ai

Observed Aug 2, 2026, 18:57 UTC (5d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of lettro.ai was taken 5d ago

lettro.ai is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting lettro.ai 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 lettro.ai Watching a domain needs a DRM3 account. The reading above stays free and public either way.
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Not responding
Runs onCloudflare
Secured byLet's Encrypt
IPv6 · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat lettro.ai actually stands on - every host below is a signed observation
lettro.ai
A / AAAA
172.67.208.168104.21.93.1012606:4700:3031::ac43:d0a82606:4700:3030::6815:5d65
Cloudflareserves the site
NS
salvador.ns.cloudflare.comsimone.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
route1.mx.cloudflare.netroute2.mx.cloudflare.netroute3.mx.cloudflare.net
cloudflare.netreceives its email
TLS
lettro.ai
Let's Encryptissued its certificate

DNS Records

A 2

  • 172.67.208.168
  • 104.21.93.101

AAAA 2

  • 2606:4700:3031::ac43:d0a8
  • 2606:4700:3030::6815:5d65

MX 3

  • 18route1.mx.cloudflare.net
  • 19route2.mx.cloudflare.net
  • 29route3.mx.cloudflare.net

TXT 2

  • brevo-code:9fe7ccb053cdc90b11666ee3c46c48a2
  • v=spf1 include:_spf.mx.cloudflare.net ~all

NS 2

  • salvador.ns.cloudflare.com
  • simone.ns.cloudflare.com

SOA 1

  • salvador.ns.cloudflare.com dns.cloudflare.com

DMARC_RECORDS 1

  • v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

TLS Certificates (4)

Common NameIssuerExpires
lettro.ai C=US, O=Let's Encrypt, CN=YE1 Wed, 30 Sep 2026 23:22:36 +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 (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_82997132e8b9ac4a
Output Hash
4e0223e269e2e8150da5f8b4c895b7857c514cf889aecb87c4bcd979d2dc4954
Signature
ed25519:d905bee8cdccab8765e244f52f93dd7b5f1244456dea7ced656396cd979cbb3a5ddd5ac4ea01e8c33db3bc1f9c8b6b17b4467c5504b6ccfbee6b7dda5ffb280c
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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