indexo.dev

doublestruck.co.uk

.uk crawl

First seen 2026-04-18 · Last seen 2026-05-12 · ok HTTP/1.1 200 4699 ms crawled 2026-05-12

US · 141.193.213.11 · AS209242 Cloudflare London, LLC

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Home - Doublestruck : Doublestruck
Language
en-US
Canonical
https://www.doublestruck.co.uk/

Open Graph

url
https://www.doublestruck.co.uk/
title
Home - Doublestruck
locale
en_US
site name
Doublestruck
description
Doublestruck is an Educational Technology company that is part of the AQA  family. It specialises in technology that addresses the needs of teachers in formative assessment and reporting. Testbase and Exampro question banks have been used in primary and secondary schools throughout the country for over 20 years.

Technology

CDN
Cloudflare
CMS
WordPress
Analytics
  • Google Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • ajax.googleapis.com×2
  • cdn-cookieyes.com×1
  • fonts.googleapis.com×1
  • www.google-analytics.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Key-Systems GmbH
Created
2000-09-01
Expires
2026-09-01 103 days left
Updated
2025-09-29
Name servers
  • ns-1066.awsdns-05.org.
  • ns-1815.awsdns-34.co.uk.
  • ns-323.awsdns-40.com.
  • ns-979.awsdns-58.net.

DNS records live

NS
  • ns-1066.awsdns-05.org
  • ns-1815.awsdns-34.co.uk
  • ns-323.awsdns-40.com
  • ns-979.awsdns-58.net
MX
  • 0 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
  • h2rmtkx4752yjz2fzyzk4lpjbfw3wr5y
Verified for
  • Atlassian
  • GlobalSign
  • Google

Email authentication weak

SPF
v=spf1 mx a include:_spf.google.com include:testbase.co.uk include:servers.mcsv.net include:doublestruck.eu include:doublestruck.co.uk ~all
softfail (~all)
DMARC
not published
DKIM
  • google: v=DKIM1; k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqeV9blQsK8KGAHc0/HID/thcsQpwqJ0pqPqcINvurbBxVEKBhKsoNeCxGWNxl8wPF/ipLotfPF4yliv…
  • k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
selectors probed

Certificate (current)

E8
from 2026-05-06 to 2026-08-04
Expires in 75 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://www.doublestruck.co.uk/

present
  • content-security-policy
findings
  • missing HSTS
  • CSP uses wildcard sources
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
frame-ancestors https://*.doublestruck.co.uk

Links to (2)

Linked from (2)