CONTINUOUS INTERNET TELEMETRY24H DRIFT39,355 material changesacross 37,705 domains · 24h to ~2h ago · -1,505 vs yesterdayNOW554 curated domains not reachablelast probe, steadySITE ERRORS34,565 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,805 sites429 rate-limit / 403 bot-block, a posture signal

us-hc.com

Observed Jul 27, 2026, 19:25 UTC (5d 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 byGoogle Trust Services
Also usesFacebook/MetaGoogle Search Console
IPv6 · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat us-hc.com actually stands on - every host below is a signed observation
us-hc.com
A / AAAA
172.66.40.251172.66.43.52606:4700:3108::ac42:28fb2606:4700:3108::ac42:2b05
2606serves the site
NS
cass.ns.cloudflare.comray.ns.cloudflare.com
cloudflare.comanswers its DNS
MX
ushc-com0e.mail.protection.outlook.com
Microsoft 365receives its email
TLS
us-hc.com
Google Trust Servicesissued its certificate

DNS Records

A 2

  • 172.66.40.251
  • 172.66.43.5

AAAA 2

  • 2606:4700:3108::ac42:28fb
  • 2606:4700:3108::ac42:2b05

MX 1

  • 0ushc-com0e.mail.protection.outlook.com

TXT 13

  • MS=1FC185DB6C071AA2E7393FE9D01F60D7B32A7A10
  • MS=ms22859051
  • apple-domain-verification=nPHXT6xf8rOymC4s
  • brevo-code:341e734998a71df4c75bebed6a3bab4d
  • facebook-domain-verification=qax6bx8h83wj7iqn0j3e4y00mkz0p0
  • google-site-verification=86R1E5m9WyvG1hYicWi2rmBIbTBbgjQja51p5Afen0E
  • google-site-verification=_Bcnt7MbUKHF2Ln9ZWhubE0pASV7h20kZcSfl18UOWQ
  • google-site-verification=kCJz8chHtIYMt_bn8sJ1c7gAiCA8-yZ8yrLbPzYstgY
  • k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDRg5ZqlSsh7YLHil0WDbv5mgyHb0/dJ+DMkZ6F9HAjDQGKKbXdCvlkT/1tU8jNRrUIlaC05anINAmo3jbT595NKeQ91/fmZORgmH8HF35om7/cMi+uw5M30mzqe5agzETOszvhKECzXBC2UlV6jXgEu94OP7XlO/Nvc+Jx6MvdfQIDAQAB
  • pardot1010572=1b959823e3ee82d375c687f945a8f2907801c834660315ea3a6bea81083f5973

NS 2

  • cass.ns.cloudflare.com
  • ray.ns.cloudflare.com

SOA 1

  • cass.ns.cloudflare.com dns.cloudflare.com

SRV 1

  • _dc-srv.d04c178d6329._autodiscover._tcp.us-hc.com:443 p0

CAA 10

  • issue "comodoca.com"
  • issue "digicert.com; cansignhttpexchanges=yes"
  • issue "letsencrypt.org"
  • issue "pki.goog; cansignhttpexchanges=yes"
  • issue "ssl.com"
  • issuewild "comodoca.com"
  • issuewild "digicert.com; cansignhttpexchanges=yes"
  • issuewild "letsencrypt.org"
  • issuewild "pki.goog; cansignhttpexchanges=yes"
  • issuewild "ssl.com"

TLS Certificates (3)

Common NameIssuerExpires
us-hc.com C=US, O=Google Trust Services, CN=WE1 Sat, 03 Oct 2026 08:32:04 +0000
WE1 C=US, O=Google Trust Services LLC, CN=GTS Root R4 Tue, 20 Feb 2029 14:00:00 +0000
GTS Root R4 C=BE, O=GlobalSign nv-sa, 2.5.4.11=Root CA, CN=GlobalSign Root CA Fri, 28 Jan 2028 00:00:42 +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; nothing leaves your machine.

Verify this receipt

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

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

Ed25519 Receipt

Receipt ID
rcpt_d3553c6e21352113
Output Hash
d471098d6be6d2c4fdac5cad585a556ef53b1fa41de94f510693e8aeea41a97f
Signature
ed25519:562e060757e0537d0d2af06f983ce6675e076081dbbb4086bcab169e7e7333db092fc15c052e3c25d1ba81cc0eaf668bb521cebdb4aebbc2d9ef1e0eee4c0608
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser