peirce.org.uk

.uk crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 573 ms crawled 2026-05-18

US · 104.21.14.180 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Jon Peirce – Neuroscientist, programmer, dad
Description
Neuroscientist, programmer, dad
Feeds

Open Graph

description
Neuroscientist, programmer, dad

Technology

CDN
Cloudflare

Third-party hosts loaded (1)

  • avatars0.githubusercontent.com×1

Social

Registration

Registrar
Cloudflare, Inc.
Created
2004-08-28
Expires
2026-08-28 100 days left
Updated
2024-08-12
Name servers
  • ariella.ns.cloudflare.com.
  • benedict.ns.cloudflare.com.

DNS records live

NS
  • ariella.ns.cloudflare.com
  • benedict.ns.cloudflare.com
MX
  • 21 route2.mx.cloudflare.net
  • 36 route1.mx.cloudflare.net
  • 44 route3.mx.cloudflare.net

Email authentication partial

SPF
v=spf1 include:_spf.mx.cloudflare.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:76af85f325994612ad77abc0489bcabd@dmarc-reports.cloudflare.net
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-03-21 to 2026-06-19
Expires in 30 days

HTTP security headers

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

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

Links to (7)

Linked from (2)