koppers.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-15 · ok HTTP/1.1 200 2030 ms crawled 2026-05-08

US · 75.2.60.5 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

sector manufacturing type homepage

HTML metadata

Title: Koppers Inc.
Description: We provide fully integrated, sustainability-based product, services, and solutions to infrastructure industries around the world.
Language: en
Canonical: https://missing-env-siteurl.example.com/home

Open Graph

title: Koppers Inc.

Technology

CDN: Netlify
CMS: Next.js

Analytics

Google Tag Manager

Fonts

Adobe Fonts

Third-party hosts loaded (5)

cdn.sanity.io×16
cookie-cdn.cookiepro.com×2
missing-env-siteurl.example.com×1
use.typekit.net×1
www.googletagmanager.com×1

Social

Contact

Phone

Registration

Registrar

Network Solutions, LLC

Created

1995-11-10

Expires

2030-11-09 1634 days left

Updated

2025-09-10

Name servers

ns77.worldnic.com
ns78.worldnic.com

DNS records live

NS

ns77.worldnic.com
ns78.worldnic.com

MX

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

TXT

Show 13 TXT records

WnMOhzfbrTgxh0HOYwk/ubzvwx32Q2m6AXcvfM/5eXfZL2J2pIbnuMNCMKpfwu5Q6festRfC5BAzUf8R7Qe5BQ==
hggj65l3cjs5t61ehqd839n9os
autodesk-domain-verification=2SrDvchAhkw3u1zh-Zf-
sjcenaur9uivlegsb75o7d9s1o
v=DMARC1; p=none; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;fo=1
MS=ms52936921
j6b67u6ct7nd6iu62venf73uoe
cisco-ci-domain-verification=5949ae923aa1814cc3ff14184680be8b12641500d599350ed402b20df19c1436
4h6bjgj6qkeqbii3hsijonbmef
vj2982aihhvigcvh0g4rn0p7g6
teamviewer-sso-verification=74ecea53ca2f4df882945b524f329962
444BEE240A
jkk0p03lh62tq2vh6101qirlfo

Email authentication partial

SPF

v=spf1 include:spf.protection.outlook.com ip4:209.166.137.179 ip4:98.123.144.202 -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com;fo=1

policy: none (monitoring only)

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4ZK7xZmJ3KtWGviSnuZ5jVHvgM8nTfep4+DzbBKpiHiawTLf9rGa6wElumt7B0XoBnYIhBZ3MoN41x…
selector2: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDTLpc3bz5LyNoQVJ5RG5nijwwaiWL5Tgyeb44keHclIWjEbAZHcI2X8Rrj/x8z0R1Ud9CcEi2J8t9UxYznsD…

selectors probed

Certificate (current)

from 2026-04-09 to 2026-07-08

Expires in 49 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.koppers.com/

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=31536000