CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 35,866 material changesacross 35,253+ domains · 24h to ~4h ago · a floor, 20h of 24 walkedNOW561 curated domains not reachablelast probe, steadySITE ERRORS34,438 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,732 sites429 rate-limit / 403 bot-block, a posture signal

zemax.com

Observed Jul 25, 2026, 17:51 UTC (8d 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.

Verify this receipt yourself + Watch this domain
Up right now
Secured bySectigo
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zemax.com actually stands on - every host below is a signed observation
zemax.com
A / AAAA
192.104.24.52
unattributedserves the site
NS
exdns2.synopsys.comexdns1.synopsys.comexdns4.synopsys.comexdns3.synopsys.com
synopsys.comanswers its DNS
TLS
zemax.com
Sectigo Limitedissued its certificate

DNS Records

A 1

  • 192.104.24.52

TXT 1

  • v=spf1-all

NS 4

  • exdns2.synopsys.com
  • exdns1.synopsys.com
  • exdns4.synopsys.com
  • exdns3.synopsys.com

SOA 1

  • badc-ipam-exdns1.synopsys.com hmaster.synopsys.com

TLS Certificates (2)

Common NameIssuerExpires
zemax.com C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA OV R36 Tue, 01 Dec 2026 23:59:59 +0000
Sectigo Public Server Authentication CA OV R36 C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46 Fri, 21 Mar 2036 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 zemax.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_b2bccc0c82777a58
Output Hash
aa91b06ad3dc405fc529f536dc8c1b158214252f3a3f488a9fa005c17218b9e3
Signature
ed25519:6cb6115ea9b62905f20f86177b19d6ca22819ddd4a4dd6cc98d05b3fbd3e205b02df205cc0887dbf2146fb9e0cd8f91c77f6f2db208f342ec820054a59940d02
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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