johncrane.com

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Title

Mechanical Seals & Support Systems | John Crane

Description

Learn more about how John Crane can keep your mission-critical operations running efficiently by maximizing the reliability of your rotating equipment with engineered products innovative technologies and expert services.

Language

en-US

Canonical

https://www.johncrane.com/en

Translations

en
es
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pt
sv
zh

Open Graph

url: https://www.johncrane.com/en
title: Mechanical Seals & Support Systems | John Crane
description: Learn more about how John Crane can keep your mission-critical operations running efficiently by maximizing the reliability of your rotating equipment with engineered products innovative technologies and expert services.

Technology

CDN: Azure Front Door

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Cookiebot

Third-party hosts loaded (7)

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consent.cookiebot.com×1
googleads.g.doubleclick.net×1
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Social

Registration

Registrar

CSC Corporate Domains, Inc.

Created

1996-12-23

Expires

2026-12-22 217 days left

Updated

2025-12-18

Name servers

a1-211.akam.net
a16-66.akam.net
a26-66.akam.net
a28-64.akam.net
a7-64.akam.net
a9-66.akam.net

DNS records live

NS

a1-211.akam.net
a16-66.akam.net
a26-66.akam.net
a28-64.akam.net
a7-64.akam.net
a9-66.akam.net

MX

0 johncrane-com.mail.protection.outlook.com

TXT

Show 7 TXT records

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Email authentication partial

SPF

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strict (-all)

DMARC

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policy: none (monitoring only) · pct=25

DKIM

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selectors probed

Certificate (current)

GeoTrust TLS RSA CA G1

from 2026-02-19 to 2026-08-20

Expires in 93 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.johncrane.com/en

present

strict-transport-security
content-security-policy
x-frame-options
x-content-type-options
referrer-policy
permissions-policy
cross-origin-opener-policy

findings

CSP allows unsafe inline scripts/styles
weak frame protection

Header values

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x-frame-options: ALLOW-FROM https://resources.johncrane.com
permissions-policy: autoplay=(), payment=()
x-content-type-options: nosniff
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strict-transport-security: max-age=31536000; includeSubdomains
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