jm.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-19 · ok HTTP/1.1 200 1803 ms crawled 2026-05-06

US · 151.101.131.10 · AS54113 Fastly, Inc.

Reputation 100/100

Classifying

HTML metadata

Title: Insulation Systems, Commercial Roofing and Engineered Products | Johns Manville
Description: Johns Manville is committed to manufacturing premium-quality insulation, commercial roofing and building materials. We measure success by the relationships we build and the positive impacts we have on our employees and customers.
Canonical: https://www.jm.com/

Open Graph

url: https://www.jm.com/
title: Johns Manville - A Berkshire Hathaway Company
description: Johns Manville is committed to manufacturing premium-quality insulation, commercial roofing and building materials. We measure success by the relationships we build and the positive impacts we have on our employees and customers.

Technology

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Social

Registration

Registrar

Network Solutions, LLC

Created

1997-05-13

Expires

2028-05-14 725 days left

Updated

2023-03-15

Name servers

ns1-34.azure-dns.com
ns2-34.azure-dns.net
ns3-34.azure-dns.org
ns4-34.azure-dns.info

DNS records live

NS

ns1-34.azure-dns.com
ns2-34.azure-dns.net
ns3-34.azure-dns.org
ns4-34.azure-dns.info

MX

10 mxa-00152701.gslb.pphosted.com
10 mxb-00152701.gslb.pphosted.com
20 mx0a-00152701.pphosted.com
20 mx0b-00152701.pphosted.com

TXT

pardot_84262_*=036af2df8bfaf63b7f85f64e1c948e9e16a7b713e9304826a17dfa351719e8a7
aZv1uoJvrmblz8rhWjSPUj3QtcigLnKVM9KcP0/gRmYE7Xn8x9hxZdE83xkipFxeSjQwLQ0vOzFKtl6kOdw2jw==
atlassian-sending-domain-verification=4bf91572-3587-4dc2-adce-0e3dfdfebccb

Verified for

Atlassian
GlobalSign
Microsoft 365

Email authentication strong

SPF: v=spf1 mx ip4:66.242.34.13 ip4:74.63.177.57 ip4:74.63.177.58 ip4:74.201.71.34 ip4:194.99.88.20 include:_spf.salesforce.com include:spfs.aravo.com -all
strict (-all)
DMARC: v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc_agg@vali.email; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com
policy: reject (enforced) · sp=reject
DKIM: no key found at common selectors

Certificate (current)

GlobalSign RSA OV SSL CA 2018

from 2026-01-21 to 2027-02-22

Expires in 278 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.jm.com/

present

strict-transport-security
x-frame-options
x-content-type-options

findings

missing Content Security Policy
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
strict-transport-security: max-age=31557600