CONTINUOUS INTERNET TELEMETRY24H DRIFT1,883 material changesacross 1,683 domains · -668 vs yesterdayDNS DRIFT14 domains changed DNS providertop destination selectel.ru · -2 vs yesterdayEMAIL DRIFT6 domains switched email providertop destination google.com · +1 vs yesterdayCERT DRIFT1 domains switched issuing CA24h · -4 vs yesterdayNOW3,397 curated domains not answeringlast probe, steadyERRORS10,890 responded with an errorlast probe · 5xx / 404 / 429 / 40324H DRIFT1,883 material changesacross 1,683 domains · -668 vs yesterdayDNS DRIFT14 domains changed DNS providertop destination selectel.ru · -2 vs yesterdayEMAIL DRIFT6 domains switched email providertop destination google.com · +1 vs yesterdayCERT DRIFT1 domains switched issuing CA24h · -4 vs yesterdayNOW3,397 curated domains not answeringlast probe, steadyERRORS10,890 responded with an errorlast probe · 5xx / 404 / 429 / 403

hca.com

Observed 2026-07-14T03:07:43.363Z (7h ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding
Runs onCloudflare
Email byMicrosoft 365
Registered withDomain Registration Services, Inc. dba dotEarth.com
3 subdomains · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat hca.com actually stands on - every host below is a signed observation
hca.com
NS
dns.calucem.comdns2.calucem.comdns2.iskon.hr
calucem.com + iskon.hranswers its DNS
MX
hca-com.mail.protection.outlook.com
Microsoft 365receives its email

HTTPS probe

server_error Server error (5xx) 530 Server Error
HTTP status530
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time1179 ms
DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

MX 1

  • 0hca-com.mail.protection.outlook.com

TXT 2

  • MS=ms52564868
  • v=spf1 include:spf.protection.outlook.com -all

NS 3

  • dns.calucem.com
  • dns2.calucem.com
  • dns2.iskon.hr

SOA 1

  • dns.hca.com itsupport.calucem.com

TLS Certificates (0)

None.

Subdomains (3)

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

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

Ed25519 Receipt

Receipt ID
fe945687-3ac9-47a4-96b7-fe3713403b9b
Output Hash
d0c42df4e0e2443934fb42944e50711dce8cdf1b4113e12e5fbbe06f3d915c21
Signature
ed25519:cab48dd8033bcd1df7fb4507c6f63db5c23c7c8bc9f73dba751dfc79bcd9dc33394ef8390940ab2665b9aca6e96e0e3a5dd5c03712bd73b671a6df929c6b1e09
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser