daviddeutsch.org.uk

HTML metadata

Technology

Server

nginx

CMS

WordPress

Fonts

• Google Fonts

Third-party hosts loaded (3)

• fonts.googleapis.com×2
• fonts.gstatic.com×1
• s.w.org×1

Contact

Address

rd Feynman.ORCID© David Deutsch 2026

Registration

Registrar

123-Reg Limited t/a 123-reg

Created

2013-06-24

Expires

2026-06-24 35 days left

Updated

2024-09-03

Name servers

• ns1.hpdns.net.
• ns2.hpdns.net.
• ns3.hpdns.net.
• ns4.hpdns.net.

DNS records live

NS

• ns1.hpdns.net
• ns2.hpdns.net
• ns3.hpdns.net
• ns4.hpdns.net

MX

• 0 mail.daviddeutsch.org.uk

Email authentication weak

SPF

v=spf1 ip4:91.238.160.7 ip4:91.238.162.173 +a +mx +ip4:91.238.165.121 +ip4:91.238.161.4 include:spf.hostns.io ~all

softfail (~all)

DMARC

not published

DKIM

• default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApLeHighjpYfrRtiEaJt6NI+yznCPePQ1N7Jn9MwHHoI5B38ZYujyz/6QCvTepEprfsNrnPCzjneIGV…

selectors probed

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.daviddeutsch.org.uk/

findings

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

Links to (3)

• constructortheory.org×1
• orcid.org×1
• thebeginningofinfinity.com×1

Linked from (2)

• thebeginningofinfinity.com×1
• constructortheory.org×1