CONTINUOUS INTERNET TELEMETRY24H DRIFT12,792 material changesacross 10,233 domains · last 24hNOW544 curated domains not reachable+42 vs yesterdaySITE ERRORS35,012 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 154,444 sites429 rate-limit / 403 bot-block, a posture signal

opentlc.com

Observed Jul 28, 2026, 17:14 UTC (21h 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.

Not responding
Email bySendGrid
Registered withAmazon Registrar, Inc.
tranco_40k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat opentlc.com actually stands on - every host below is a signed observation
opentlc.com
NS
ipa3.opentlc.comipa5.opentlc.comipa4.opentlc.comipa2.opentlc.com+1 more
opentlc.comanswers its DNS
MX
mx03.opentlc.commx02.opentlc.com
SendGridreceives its email

DNS Records

MX 2

  • 20mx03.opentlc.com
  • 10mx02.opentlc.com

TXT 1

  • v=spf1 mx include:spf.reachmail.net include:sendgrid.net ip4:169.63.179.208 ip4:150.239.167.192 ~all

NS 5

  • ipa3.opentlc.com
  • ipa5.opentlc.com
  • ipa4.opentlc.com
  • ipa2.opentlc.com
  • ipa1.opentlc.com

SOA 1

  • ipa4.opentlc.com hostmaster.opentlc.com

TLS Certificates (0)

None.

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

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for opentlc.com. It updates itself. It attests a signed observation - not that the site is safe.

DomainDrift signed-observation badge for opentlc.com <a href="https://domaindrift.io/t/opentlc.com"> <img src="https://domaindrift.io/badge/opentlc.com.svg" width="300" height="64" alt="DomainDrift signed observations for opentlc.com"> </a>

Ed25519 Receipt

Receipt ID
rcpt_4d6a622800943aaf
Output Hash
6bd9c9b7e51400905ff0818c706c81cc3c64f668907ec3d76e49d717157cd213
Signature
ed25519:46fb0d657a736fa04f2aba6ebcd971eef5e885a6013f261036f820b9f5ca34a0506307a38a08de541e5c4871fa0c760aa8a966983e63f208f5804a73843e4706
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser