indexo.dev

kalculus.co.uk

.uk crawl

First seen 2026-05-30 · Last seen 2026-05-31 · ok HTTP/1.1 200 572 ms crawled 2026-05-31

GB · 5.134.10.243 · AS34282 Team Blue Carrier Limited

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Home - Kalculus
Language
en-US
Canonical
https://kalculus.co.uk/
Feeds

Open Graph

url
https://kalculus.co.uk/
title
Home - Kalculus
locale
en_US
site name
Kalculus

Technology

Server
LiteSpeed
CMS
WordPress
jQuery
3.7.1
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • www.google.com×1
  • www.googletagmanager.com×1

DNS records live

NS
  • ns21.domaincontrol.com
  • ns22.domaincontrol.com
MX
  • 0 kalculus-co-uk.mail.protection.outlook.com
Verified for
  • Anthropic
  • Google
  • OpenAI

Email authentication partial

SPF
v=spf1 include:spf.protection.outlook.com include:spf-uk.emailsignatures365.com -all
strict (-all)
DMARC
v=DMARC1; p=none; adkim=s; aspf=s; fo=1; rua=mailto:dmarcreports@sirec.uk; ruf=mailto:dmarcreports@sirec.uk;
policy: none (monitoring only)
DKIM
  • k2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAv2aC2KjGKLOwTweBY5A9RpjsxaBXR9r7OAU6U8/zn92ivImI75naUujWbItRI/QmL1jy5PWGqLwoUA…
selectors probed

Certificate (current)

R12
from 2026-04-23 to 2026-07-22
Expires in 51 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://kalculus.co.uk/

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

Links to (1)

Linked from (1)