CONTINUOUS INTERNET TELEMETRY24H DRIFT5,897 material changesacross 5,564 domains · 24h to ~3h ago · -2,866 vs yesterdayNOW560 curated domains not reachablelast probe, steadySITE ERRORS34,304 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 156,289 sites429 rate-limit / 403 bot-block, a posture signalMOVERokta.comNo mail routes in the latest observation

uss.com

Observed Aug 2, 2026, 20:26 UTC (6h 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
Email byProofpoint
Secured byDigiCert
Also usesNotionGoogle Search Console
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat uss.com actually stands on - every host below is a signed observation
uss.com
A / AAAA
170.191.2.22
unattributedserves the site
NS
ns4.level3.netns3.level3.net
level3.netanswers its DNS
MX
mxa-00264f01.gslb.pphosted.commxb-00264f01.gslb.pphosted.com
Proofpointreceives its email
TLS
www.ussteel.com
DigiCert Incissued its certificate

DNS Records

A 1

  • 170.191.2.22

MX 2

  • 10mxa-00264f01.gslb.pphosted.com
  • 10mxb-00264f01.gslb.pphosted.com

TXT 9

  • apple-domain-verification=s7LkrSAcijriyj6q
  • autodesk-domain-verification=dQeSD0zwxFB4XOU3zxNC
  • cisco-ci-domain-verification=2ecb46b1a9ab0d389b04aa573ecd720dea560afae47d4795aea7bcf9b18cf4b1
  • have-i-been-pwned-verification=4900fe39be8ad3b4c83806097e0d9961
  • MS=ms92725849
  • notion-domain-verification=CVwupyWkVyCNgCbKT02Lih5vvLzlSKW2rONBkDcxeCD
  • anthropic-domain-verification-3rdzr6=BMu5Op8CaYH7RSeJt8CjhscFy
  • v=spf1 mx ip4:199.248.185.0/24 ip4:67.231.156.120/32 ip4:148.163.156.50/32 ip4:204.10.22.0/24 ip4:208.67.24.0/22 ip4:69.20.58.129/32 ip4:207.97.197.45/32 ip4:207.97.197.46/32 ip4:74.63.149.244/32 ip4:107.20.210.250/32 ip4:52.1.14.157/32 ip4:63.101.151.0/28 ip4:198.233.179.12/32 ip4:13.108.254.128/28 ip4:13.108.238.144/28 ip4:13.110.78.160/28 ip4:81.93.173.201/32 ip4:81.93.164.103/32 ip4:147.154.20.1/32 ip4:147.154.0.3/32 ip4:38.135.98.52/32 ip4:65.221.12.128/32 ip4:65.221.12.148/32 ip4:20.119.174.191/32 ip4:20.119.207.133/32 ip4:20.230.106.230/32 ip4:20.114.186.35/32 include:spf.protection.outlook.com include:_spf.salesforce.com include:rp.oracleemaildelivery.com include:spf-00264f02.pphosted.com -all
  • google-site-verification=bGne1giHSOj0yAZ8ZA9l8-kMvZBr6oiitrw5V8aqxlg

NS 2

  • ns4.level3.net
  • ns3.level3.net

SOA 1

  • ns3.level3.net postmaster.ns3.level3.net

SRV 2

  • expwye.uss.com:5060 p1
  • expwye.uss.com:5060 p1

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; rua=mailto:dmarc_uss_rua@uss.com; ruf=mailto:dmarc_uss_ruf@uss.com; fo=1

TLS Certificates (2)

Common NameIssuerExpires
www.ussteel.com C=US, O=DigiCert Inc, CN=DigiCert Global G2 TLS RSA SHA256 2020 CA1 Wed, 13 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

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

Ed25519 Receipt

Receipt ID
rcpt_659a6c6da1dc23bd
Output Hash
4575ce4523ccd5c9bb001607c1c641a8cd0dd2195f121f5ba1acf13e1ffdc896
Signature
ed25519:c2c27be19f165e912051ee8ef38d1285b6e5f0dc2990007951ab5f9315b0214378950652151d5cc03923f10033142194749730c2bbd05bcd12298de0d032270c
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser