indexo.dev

castus.co.uk

.uk crawl

First seen 2026-04-18 · Last seen 2026-05-19 · ok HTTP/1.1 200 2060 ms crawled 2026-05-12

US · 172.67.200.184 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

sector tech type homepage

HTML metadata

Title
Custom digital solutions, Software Integrations & e-commerce | Castus Custom Software
Description
Bespoke software & digital solutions from Castus – custom systems, e-commerce platforms and web apps to streamline your business processes.
Language
en
Canonical
https://www.castus.co.uk/

Open Graph

url
https://www.castus.co.uk/
title
Custom digital solutions, Software Integrations & e-commerce | Castus Custom Software
description
Bespoke software & digital solutions from Castus – custom systems, e-commerce platforms and web apps to streamline your business processes.

Technology

CDN
Cloudflare
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Registration

Registrar
Fasthosts Internet Ltd
Created
2005-04-07
Expires
2027-04-07 321 days left
Updated
2026-03-08
Name servers
  • april.ns.cloudflare.com.
  • george.ns.cloudflare.com.

DNS records live

NS
  • april.ns.cloudflare.com
  • george.ns.cloudflare.com
MX
  • 1 castus-co-uk.mail.protection.outlook.com
Verified for
  • Anthropic
  • Apple
  • Atlassian
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 a include:_spf.castus1.co.uk include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc@castus.co.uk;
policy: none (monitoring only)
DKIM
  • selector2: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDtUyaORV1uBo6zGH6xFrS5tOz/DM3ZRxYuEx/Psxlrpm1Hvdh66+SkIrOXKkkEyo5YaMjTgIqYbJBqJ3laqe…
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

WE1
from 2026-03-15 to 2026-06-13
Expires in 23 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.castus.co.uk/

present
  • x-frame-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN

Linked from (4)