CONTINUOUS INTERNET TELEMETRY24H DRIFT10,818 material changesacross 10,442 domains · +189 vs yesterdayDNS DRIFT783 domains changed DNS providertop destination parity.domains · +3 vs yesterdayEMAIL DRIFT171 domains switched email providertop destination outlook.com · +1 vs yesterdayCERT DRIFT224 domains switched issuing CA24h · -6 vs yesterdayNOW1,227 curated domains not reachable-122 vs yesterdaySITE ERRORS19,348 sites serving errorslast probe · 5xx / 404 / TLSTHROTTLED95,045 throttled or blocked our scanner429 rate-limit / 403 bot-block

fluor.com

Observed Jul 21, 2026, 19:14 UTC (1d 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 onAmazon
Email byMicrosoft 365
Secured byLet's Encrypt
Registered withCSC Corporate Domains, Inc.
Also usesFacebook/MetaGoogle Search ConsoleAtlassian
1 subdomain · construction
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat fluor.com actually stands on - every host below is a signed observation
fluor.com
A / AAAA
76.76.21.21
Amazonserves the site
NS
pdns1.ultradns.netpdns2.ultradns.netpdns3.ultradns.orgpdns4.ultradns.org+2 more
ultradns.net + ultradns.org + moreanswers its DNS
MX
fluor-com.mail.protection.outlook.com
Microsoft 365receives its email
TLS
fluor.com
Let's Encryptissued its certificate

DNS Records

A 1

  • 76.76.21.21

MX 1

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

TXT 18

  • ZmxvdXI=
  • apple-domain-verification=hcyGdCQUE0saq092
  • facebook-domain-verification=5fzkxz4xc001kltyh0yoy73mw1a37b
  • onetrust-domain-verification=573c4c78b7634862a09fca15c70c0720
  • anthropic-domain-verification-y86gcf=W5zyTSgXOzhjLElppkLXFeSjC
  • adobe-idp-site-verification=7afc0289-18e2-4484-958a-3161cc194378
  • webexdomainverification.3LWST=ed224231-8a40-401d-8aac-5f6d6b7b320b
  • webexdomainverification.7Q716=9ab320bc-2daa-4434-9f55-fb018f1b8d71
  • google-site-verification=wNP9iCHlzYjrqH-Bt4G3RuA5WfThuwRKi8Zw8GBIrfs
  • apple-domain-verification=4BI8a-hdiPzU1bvIjSYA4TgIK4_h9nt8Zx-wwkklunk

NS 6

  • pdns1.ultradns.net
  • pdns2.ultradns.net
  • pdns3.ultradns.org
  • pdns4.ultradns.org
  • pdns5.ultradns.info
  • pdns6.ultradns.co.uk

SOA 1

  • pdns1.ultradns.net inet\.admins.fluor.com

SRV 2

  • rgvcsexpressway.fdnet.com:5060 p5
  • rgvcsexpressway.fdnet.com:5061 p5

TLS Certificates (3)

Common NameIssuerExpires
fluor.com C=US, O=Let's Encrypt, CN=YR1 Sun, 27 Sep 2026 19:28:03 +0000
YR1 C=US, O=ISRG, CN=Root YR Sat, 02 Sep 2028 23:59:59 +0000
Root YR C=US, O=Internet Security Research Group, CN=ISRG Root X1 Thu, 02 Sep 2032 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 fluor.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_f84d6499a0282500
Output Hash
c301108a2ed61ef79b82e4fce7088ad9490d32aa19e798d00528362c1181672b
Signature
ed25519:3f7e66286b0648190a05c71cd7d4b6cc99d83efa04ac320ee7a00012be8f6eb2afdd20686589fdfae8e9a6be986cec6adb5eebbe29b227b61cd1d62c24e3d30f
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser