CONTINUOUS INTERNET TELEMETRY24H DRIFT2,253 material changesacross 2,053 domains · +294 vs yesterdayDNS DRIFT19 domains changed DNS providertop destination cloudflare.comEMAIL DRIFT8 domains switched email providertop destination outlook.com · +5 vs yesterdayNOW4,511 curated domains not answering+1,082 vs yesterdayERRORS8,524 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,335 throttled or blocked our scanner429 rate-limit / 403 bot-block24H DRIFT2,253 material changesacross 2,053 domains · +294 vs yesterdayDNS DRIFT19 domains changed DNS providertop destination cloudflare.comEMAIL DRIFT8 domains switched email providertop destination outlook.com · +5 vs yesterdayNOW4,511 curated domains not answering+1,082 vs yesterdayERRORS8,524 responded with an errorlast probe · 5xx / 404 / TLSTHROTTLED2,335 throttled or blocked our scanner429 rate-limit / 403 bot-block

hdr-engineering.com

Observed 2026-07-15T03:52:02.884Z (16h ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding
Runs onCloudflare
Registered withCSC Corporate Domains, Inc.
1 subdomain · construction
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat hdr-engineering.com actually stands on - every host below is a signed observation
hdr-engineering.com
A / AAAA
199.168.241.135
Cloudflareserves the site
NS
ns4.hdrinc.comns2.hdrinc.comns1.hdrinc.comns3.hdrinc.com
hdrinc.comanswers its DNS

HTTPS probe

server_error Server error (5xx) 525 Server Error
HTTP status525
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time426 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

A 1

  • 199.168.241.135

TXT 1

  • v=spf1 -all

NS 4

  • ns4.hdrinc.com
  • ns2.hdrinc.com
  • ns1.hdrinc.com
  • ns3.hdrinc.com

SOA 1

  • omapr-dns02.res.public.dmz dnsadmin.hdrinc.com

TLS Certificates (0)

None.

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

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

Ed25519 Receipt

Receipt ID
c2536fa0-87bf-4b18-bee1-f4d7cc2c9ae4
Output Hash
7aaa736a652d43335350791faeba69554842d166878ded07f466fddc3fbfcf77
Signature
ed25519:b978d95e122bef780ffadf583e918345d7a2420e1d55f1ed759f6122e12c7c49be79992830272bae6665179067c7cf42d2cea0f66c096df2bdef0f3cefb7000b
Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent
(genesis)
Plane
fast
Verify this in your browser