schematron.com

HTML metadata

Title

Schematron | Schematron

Description

Home of Schematron

Language

en

Canonical

https://schematron.com/document/9.html

Open Graph

url

httpss://schematron.com/home.html

title

Schematron | Schematron

description

Home of Schematron

Social

• github
• youtube

Registration

Registrar

Dreamscape Networks International Pte Ltd

Created

2001-03-13

Expires

2027-03-13 297 days left

Updated

2025-09-02

Name servers

• ns20.digicertdns.com
• ns21.digicertdns.com
• ns22.digicertdns.com
• ns23.digicertdns.net
• ns24.digicertdns.net
• ns25.digicertdns.net

DNS records live

NS

• ns20.digicertdns.com
• ns21.digicertdns.com
• ns22.digicertdns.com
• ns23.digicertdns.net
• ns24.digicertdns.net
• ns25.digicertdns.net

MX

• 40 ps.schematron.com

Email authentication strong

SPF

v=spf1 ip4:103.127.18.15 ~all

softfail (~all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:dmarc@c3xsmw0m.uriports.com; ruf=mailto:dmarc@c3xsmw0m.uriports.com; adkim=r; aspf=r; rf=afrf; pct=100; ri=86400; sp=quarantine;

policy: quarantine · sp=quarantine

DKIM

• mail: v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA2c8YmYVLVq/1Kj4XuyR8jh4X7HB/qDaB8N7xl458IRTROOQPNGWgPWQbQi2XKS6q7g/PsBt7faLTvY+d…

selectors probed

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://schematron.com/

present

• strict-transport-security
• x-frame-options
• x-content-type-options
• referrer-policy
• permissions-policy

findings

• missing Content Security Policy

Links to (15)

• youtube.com×3
• codeberg.org×3
• github.com×3
• iso.org×3
• jenitennison.com×3
• markmail.org×3
• nemsis.org×3
• ogf.org×3
• schematronist.org×3
• topologi.com×3
• wikipedia.org×3
• xml.com×3
• balisage.net×3
• xmlpress.net×3
• xmlprague.cz×1

Linked from (1)

• relaxng.org×3