cstuk.org.uk

.uk crawl

First seen 2026-04-16 · Last seen 2026-05-19 · ok HTTP/1.1 200 994 ms crawled 2026-05-11

GB · 35.176.169.237 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title: Confederation of School Trusts |
Language: en
Generator: Drupal 7 (https://www.drupal.org)
Canonical: https://cstuk.org.uk/

Technology

CMS: Drupal

Fonts

Google Fonts

Third-party hosts loaded (3)

cdn.jsdelivr.net×1
cdnjs.cloudflare.com×1
fonts.gstatic.com×1

Social

Contact

Email

membership@cstuk.org.uk

Phone

270088018

Address

ST Professional Development Ltd, registered in England & Wales, company no 10354

Registration

Registrar

Namecheap, Inc.

Created

2018-05-31

Expires

2027-05-31 375 days left

Updated

2026-05-01

Name servers

pdns1.registrar-servers.com.
pdns2.registrar-servers.com.

DNS records live

NS

pdns1.registrar-servers.com
pdns2.registrar-servers.com

MX

0 cstuk-org-uk.mail.protection.outlook.com

Verified for

Microsoft 365

Email authentication partial

SPF

v=spf1 include:spf.protection.outlook.com include:amazonses.com include:email.hivebrite.com include:_spf.orbiit.app ~all

softfail (~all)

DMARC

v=DMARC1; p=none; rua=mailto:media@cstuk.org.uk; aspf=r; adkim=r

policy: none (monitoring only)

DKIM

k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…

selectors probed

Certificate (current)

Amazon RSA 2048 M04

from 2025-08-11 to 2026-09-10

Expires in 112 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://cstuk.org.uk/

present

strict-transport-security
x-frame-options
x-content-type-options

findings

missing Content Security Policy
weak frame protection
weak content type protection
missing Referrer Policy
missing Permissions Policy

Header values

x-frame-options: SAMEORIGIN, SAMEORIGIN
x-content-type-options: nosniff, nosniff
strict-transport-security: max-age=31536000; includeSubdomains;