koppers.com

Observed 2026-07-12T18:31:23.091Z (7h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Email byProofpoint

1 subdomain · manufacturing

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat koppers.com actually stands on - every host below is a signed observation

koppers.com

A / AAAA

75.2.60.5

Cloudflareserves the site

ns77.worldnic.comns78.worldnic.com

worldnic.comanswers its DNS

mxa-0015f402.gslb.pphosted.commxb-0015f402.gslb.pphosted.com

Proofpointreceives its email

HTTPS probe

redirect Redirecting (3xx) 301 → https://www.koppers.com/

HTTP status301

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time194 ms

DNS resolutionNOERROR

Redirect chain

https://www.koppers.com/

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

75.2.60.5

MX 2

10mxa-0015f402.gslb.pphosted.com
10mxb-0015f402.gslb.pphosted.com

TXT 15

teamviewer-sso-verification=74ecea53ca2f4df882945b524f329962
vj2982aihhvigcvh0g4rn0p7g6
sjcenaur9uivlegsb75o7d9s1o
v=DMARC1; p=none; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;fo=1
jkk0p03lh62tq2vh6101qirlfo
WnMOhzfbrTgxh0HOYwk/ubzvwx32Q2m6AXcvfM/5eXfZL2J2pIbnuMNCMKpfwu5Q6festRfC5BAzUf8R7Qe5BQ==
4h6bjgj6qkeqbii3hsijonbmef
MS=ms52936921
autodesk-domain-verification=2SrDvchAhkw3u1zh-Zf-
hggj65l3cjs5t61ehqd839n9os

NS 2

ns77.worldnic.com
ns78.worldnic.com

SOA 1

NS77.WORLDNIC.com namehost.WORLDNIC.com

TLS Certificates (0)

None.

Subdomains (1)

www.koppers.com

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 koppers.com. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: ee946795-ce34-42cd-b41f-6fb7721cdb3f
Output Hash: 0e4b9e128fa9b369e153d5dd8c41e73d17c26149965878e5514ec52c3a3f12c5
Signature: ed25519:29461c2595e130b7852d14b178527350f606804fa4d9c869e40f0e9969d47d57d5ccce11425f6ba85d55b2c1f015a4a7a490a07686872ea1ecc349c0e1189c0e
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/koppers.com