CONTINUOUS INTERNET TELEMETRY24H DRIFT12,792 material changesacross 10,233 domains · last 24hNOW544 curated domains not reachable+42 vs yesterdaySITE ERRORS35,012 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 154,444 sites429 rate-limit / 403 bot-block, a posture signal

teradyne.com

Observed Jul 28, 2026, 17:37 UTC (21h 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
Runs onCloudflare
Email byProofpoint
Secured byGoogle Trust Services
Registered withNetwork Solutions, LLC
Also usesDocuSignGoogle Search ConsoleAtlassianMiro
fortune_500
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat teradyne.com actually stands on - every host below is a signed observation
teradyne.com
A / AAAA
141.193.213.21141.193.213.20
Cloudflareserves the site
NS
nsd.teradyne.comns-1079.awsdns-06.orgns-203.awsdns-25.comns-1005.awsdns-61.net+1 more
teradyne.com + awsdns-06.org + moreanswers its DNS
MX
mxa-0015db01.gslb.pphosted.commxb-0015db01.gslb.pphosted.comms64893719.msv1.invalid
Proofpointreceives its email
TLS
teradyne.com
Google Trust Servicesissued its certificate

DNS Records

A 2

  • 141.193.213.21
  • 141.193.213.20

MX 3

  • 100mxa-0015db01.gslb.pphosted.com
  • 200mxb-0015db01.gslb.pphosted.com
  • 32767ms64893719.msv1.invalid

TXT 22

  • DirectFedAuthUrl=https://login.microsoftonline.com/eae846e4-996d-4b47-83b9-5f5937d358fe/saml2
  • MS=ms39070317
  • MS=ms64893719
  • anthropic-domain-verification-b29gcd=lzA1Hg9Z5vDeHlwReGA3AC21a
  • apple-domain-verification=tJM0OR1enoGAE1Vz
  • atlassian-domain-verification=hwe0/FZdFWYavjJaq3t6dl0AFXSarfh5zPXnlNXGzn/bZorJA1eMTXP5JhiQSPq/
  • atlassian-sending-domain-verification=2cdd3c23-a128-4dc1-b99f-b633c91858a8
  • ciscocidomainverification=39f419d52703ee08dd877e4923b3817a8b58ca911f8be088786736415edb32df
  • cursor-domain-verification-9tmj7j=KngXj5FFV9a6KSgwawDCP1I6o
  • docusign=5777121b-0d9f-4c04-aab8-7fd4779d4fe6

NS 5

  • nsd.teradyne.com
  • ns-1079.awsdns-06.org
  • ns-203.awsdns-25.com
  • ns-1005.awsdns-61.net
  • ns-1732.awsdns-24.co.uk

SOA 1

  • ns-203.awsdns-25.com awsdns-hostmaster.amazon.com

TLS Certificates (3)

Common NameIssuerExpires
teradyne.com C=US, O=Google Trust Services, CN=WE1 Mon, 14 Sep 2026 06:56:27 +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 teradyne.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_9c3b380d92940de2
Output Hash
002ae6c3fc4c4d26a2631043d514c81f5a486fa2dcc092aa3386498653dfd781
Signature
ed25519:8041c686e6e83550af593a5470dde0bdf080e198ba9bbfdaf6b6a0cfe3701bdaf71c043c76122d61d945d9ba1f63109f32eebe19ac3f7a0626ff0e15e9a71902
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser