CONTINUOUS INTERNET TELEMETRY24H DRIFTat least 2,544 material changesacross 2,509+ domains · 24h to ~23h ago · a floor, 1h of 24 walkedNOW548 curated domains not reachablelast probe, steadySITE ERRORS34,645 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,960 sites429 rate-limit / 403 bot-block, a posture signal

schlumberger.com

Observed Jul 27, 2026, 09:44 UTC (6d 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 onMicrosoft Corporation
Secured byDigiCert
Registered withTucows Domains Inc.
Also usesZoom
1 subdomain · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat schlumberger.com actually stands on - every host below is a signed observation
schlumberger.com
A / AAAA
20.23.79.56
Microsoft Corporationserves the site
NS
dns0.slb.comdns0.slb.netdns1.slb.comdns1.slb.net+2 more
slb.com + slb.net + moreanswers its DNS
TLS
agoraiot.com
DigiCert Incissued its certificate

DNS Records

A 1

  • 20.23.79.56

TXT 10

  • v=spf1 -all
  • zoom=4306215
  • _65szu03ycqlod5bog415er2ho5kr96u
  • _8nciwcot8uyc17y4b08l4iqz79srfc9
  • _huwpzxp0oc2oeibp7kvryannx5gn35d
  • dtm-domain-verification=i28zSERAjPOfTt9Tc14sTYaREhHVMHIWdF_UJENxAhw
  • v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
  • v=spf1 -all
  • v=spf1 -all
  • v=spf1 -all

NS 6

  • dns0.slb.com
  • dns0.slb.net
  • dns1.slb.com
  • dns1.slb.net
  • ns74.ultradns2.com
  • ns74.ultradns2.org

SOA 1

  • nl0123vsmipam03.dns.slb.com hostmaster.slb.com

CAA 3

  • iodef "mailto:pki-admin-manager@slb.com"
  • issue "digicert.com"
  • issue "entrust.net"

TLS Certificates (2)

Common NameIssuerExpires
agoraiot.com C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 Sun, 20 Sep 2026 23:59:59 +0000
DigiCert Global G2 TLS RSA SHA256 2020 CA1 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Sat, 29 Mar 2031 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 schlumberger.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_d25d782907ff42b3
Output Hash
752e2c5b5e466c0da36da91b3569261935efa4264034378ef345b66c62b186a7
Signature
ed25519:3f49af3db7d4f831a77439426fae24b8ecd9ff14fbcf071c79ff89c5f692e6efb52486aa0878fdd7a7b551dd70e3c649c49a99ebd276e2926d48364613e3900f
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser