CONTINUOUS INTERNET TELEMETRY24H DRIFT723 material changesacross 250 domains · last 24h · -84 vs yesterdayDNS DRIFT2 domains changed DNS providertop destination domaincontrol.comNOW434 curated domains not reachablelast probe, steadySITE ERRORS17,604 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 100,879 sites429 rate-limit / 403 bot-block, a posture signal

core-mark.com

Observed Jul 24, 2026, 17:51 UTC (8h 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 withNetwork Solutions, LLC
Also usesAtlassian
1 subdomain · fortune_500
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat core-mark.com actually stands on - every host below is a signed observation
core-mark.com
A / AAAA
52.234.233.148
Microsoft Corporationserves the site
NS
pfgns1.pfgc.compfgns2.pfgc.com
pfgc.comanswers its DNS
MX
mx2.hc1981-4.iphmx.commx1.hc1981-4.iphmx.com
iphmx.comreceives its email
TLS
www.core-mark.com
DigiCert Incissued its certificate

DNS Records

A 1

  • 52.234.233.148

MX 2

  • 10mx2.hc1981-4.iphmx.com
  • 10mx1.hc1981-4.iphmx.com

TXT 9

  • rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;
  • zRQM8f3hpH5awJ81OIX2CuqE2uE3Snsl6Olsua7UyTgukD6/9jkEknGxpDsEjmLkKWt3e0d6hx247uFGN/yh7w==
  • MS=ms48771655
  • logmein-verification-code=270538e3-8418-43e5-8512-be26b6c8f538
  • v=spf1 include:SPF1.Core-Mark.com include:SPF2.Core-Mark.com ~all
  • xrp9oCiT7QLPb2iovdTI0U/afIN2yKJsMyKDbOLDR/7XsVWGa2gMrlOyT7XcafnDs2VMx6MZ/6oCU+L6o0CV5w==
  • smartsheet-site-validation=Lp_Cj_zxUoMGJMHz5EyqIM9WnfZWXw0A
  • atlassian-domain-verification=tYPOOxPBaNoWLbMC66TyiZH8gio/25rHm4KdIjUd9y6yAonaW3a+1p8CaMQXu+WY
  • v=DMARC1; p=none; rua=mailto:blyjpigx@ag.us.dmarcian.com

NS 2

  • pfgns1.pfgc.com
  • pfgns2.pfgc.com

SOA 1

  • pfgns1.pfgc.com hostmaster.pfgns1.pfgc.com

SRV 8

  • rmd020-cexp-2.core-mark.com:5061 p20
  • pln010-cexp-2.core-mark.com:5060 p10
  • pln010-cexp-2.core-mark.com:5061 p10
  • rmd020-cexp-2.core-mark.com:5061 p20
  • rmd020-cexp-2.core-mark.com:5222 p20
  • pln010-cexp-2.core-mark.com:5222 p10
  • rmd020-cexp-2.core-mark.com:5269 p20
  • pln010-cexp-2.core-mark.com:5269 p10

TLS Certificates (3)

Common NameIssuerExpires
www.core-mark.com C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 Fri, 29 Jan 2027 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
DigiCert Global Root G2 C=US, O=DigiCert Inc, 2.5.4.11=www.digicert.com, CN=DigiCert Global Root G2 Fri, 15 Jan 2038 12:00:00 +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 core-mark.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_8f22eef0137a6181
Output Hash
95de381c4eb66381293856f4b2b62469fb035d359ce950827687c60b750d3b6b
Signature
ed25519:cdea09c2a2de4c029ba4e672e1992f5a94fbc0dbc1b7d6f4dcd66958d17769e4b27b8af5009b050ec58685185f4fad5eaa60b1fb9f4ba3c68c83683840c8fe0f
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser