CONTINUOUS INTERNET TELEMETRY24H DRIFT737 material changesacross 248 domains · last 24h · -70 vs yesterdayDNS DRIFT1 domain changed DNS providertop destination hichina.comNOW481 curated domains not reachable+59 vs yesterdaySITE ERRORS17,665 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 100,900 sites429 rate-limit / 403 bot-block, a posture signal

american-board.com

Observed Jul 23, 2026, 09:15 UTC (2d 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.

Up right now
Email byMicrosoft 365
Secured byLet's Encrypt
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat american-board.com actually stands on - every host below is a signed observation
american-board.com
A / AAAA
167.86.74.203
unattributedserves the site
NS
ns33.domaincontrol.comns34.domaincontrol.com
domaincontrol.comanswers its DNS
MX
americanboard-com02b.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.american-board.com
Let's Encryptissued its certificate

DNS Records

A 1

  • 167.86.74.203

MX 1

  • 0americanboard-com02b.mail.protection.outlook.com

TXT 2

  • NETORGFT13490416.onmicrosoft.com
  • v=spf1 include:secureserver.net -all

NS 2

  • ns33.domaincontrol.com
  • ns34.domaincontrol.com

SOA 1

  • ns33.domaincontrol.com dns.jomax.net

TLS Certificates (3)

Common NameIssuerExpires
www.american-board.com C=US, O=Let's Encrypt, CN=YR2 Sun, 20 Sep 2026 23:09:11 +0000
YR2 C=US, O=ISRG, CN=Root YR Sat, 02 Sep 2028 23:59:59 +0000
Root YR C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 23:59:59 +0000

Subdomains (1)

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 american-board.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_2b2052e9151c6854
Output Hash
8e9f9b309c1be242117eea04a484814f61a58032b3a43ab26f7e7c6fb13bc92e
Signature
ed25519:de17c591631dab269fa86b39a1c9bf01dfe1ce92c408a41b27cdbb3ca63c0b62932d80bd1ffde715e0dc085c1175a304dcb72ec0a01bff48b4c0cda2a6f5de04
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser