indexo.dev

plainnumbers.org.uk

.uk crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 687 ms crawled 2026-05-18

US · 198.49.23.144 · AS53831 Squarespace, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Plain Numbers
Description
We help organisations improve how they communicate numbers and complex information to increase customer understanding.
Language
en-GB
Canonical
https://plainnumbers.org.uk

Open Graph

url
https://plainnumbers.org.uk
title
Plain Numbers
site name
Plain Numbers
description
We help organisations improve how they communicate numbers and complex information to increase customer understanding.

Technology

Server
Squarespace
CMS
Squarespace
Fonts
  • Adobe Fonts
Third-party hosts loaded (9)
  • images.squarespace-cdn.com×29
  • definitions.sqspcdn.com×19
  • assets.squarespace.com×12
  • static1.squarespace.com×4
  • use.typekit.net×2
  • p.typekit.net×1
  • p.visitorqueue.com×1
  • px.ads.linkedin.com×1
  • t.visitorqueue.com×1

Social

Contact

Email
Phone
Address
st Sussex, BN7 2BYUnited Kingdomenquiries@plainnumbers.org.uk#block-yui_3_17_2_1_17434

Registration

Registrar
123-Reg Limited t/a 123-reg
Created
2020-09-29
Expires
2026-09-29 132 days left
Updated
2024-10-04
Name servers
  • ns75.domaincontrol.com.
  • ns76.domaincontrol.com.

DNS records live

NS
  • ns75.domaincontrol.com
  • ns76.domaincontrol.com
MX
  • 1 plainnumbers-org-uk.mail.protection.outlook.com
TXT
  • openai-domain-verification=dv-68GIm8vP6H44nW3kHUwOtUu3
  • linkedin-site-verification=4f89ebab-68e3-4fea-9208-9da858649dc8

Email authentication partial

SPF
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:_spf.psm.knowbe4.com ~all
softfail (~all)
DMARC
v=DMARC1; p=none; pct=100;
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAoAIkSTT7JPCJvnQwYiHZ6hsUvelbVadLcQyDk6LhgRav9hYwJ4hohwtAh+oxlrCQY03ADphVIKUyxZ…
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyOh/E8rTrhvuuIXOzzc7zkPiu6MMNkodVhljuxFripsVlM5urtXCdDLSHH0MifILe89wfFobXGMuVTczoU…
  • s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsV7VDkRoI2vCNRhpuar3cKR/WlrKVplWbT1KpZgoH4JPJ98XrNAKbKyEh4HAlV/cwHpBA3W9TXsDQLm0xf…
selectors probed

Certificate (current)

R13
from 2026-04-04 to 2026-07-03
Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://plainnumbers.org.uk/

present
  • strict-transport-security
  • x-content-type-options
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
strict-transport-security
max-age=0

Links to (1)

Linked from (2)