indexo.dev

400.co.uk

.uk crawl

First seen 2026-04-15 · Last seen 2026-05-07 · ok HTTP/1.1 200 880 ms crawled 2026-05-09

GB · 82.71.205.1 · AS13037 Zen Internet Ltd

Reputation 89/100 weak security headers dmarc monitor-only

sector b2b services type homepage

HTML metadata

Title
400 Communications: A purpose-driven creative agency. Certified B Corp. - 400
Description
A purpose-driven creative agency. Certified B Corp. We're an award-winning, London-based, brand and graphic design agency, specialising in creating engaging, effective design solutions that deliver results.
Language
en-US
Canonical
https://400.co.uk/
Feeds

Open Graph

url
https://400.co.uk/
title
400 Communications: A purpose-driven creative agency. Certified B Corp. - 400
locale
en_US
site name
400
description
A purpose-driven creative agency. Certified B Corp. We're an award-winning, London-based, brand and graphic design agency, specialising in creating engaging, effective design solutions that deliver results.

Technology

Server
nginx
CMS
WordPress
Fonts
  • Google Fonts
Social widgets
  • Vimeo Embed

Third-party hosts loaded (5)

  • player.vimeo.com×9
  • cdnjs.cloudflare.com×4
  • fonts.googleapis.com×2
  • fast.fonts.net×1
  • unpkg.com×1

Social

Contact

Email
Phone
Address
St. Cross StreetLondon EC1N 8UBMap+44 (0)20 7404

Registration

Registrar
Team Blue Internet Services UK Limited t/a Team Blue Internet Services Limited t/a names.co.uk
Created
1998-05-18
Expires
2027-05-18 363 days left
Updated
2025-05-18
Name servers
  • ns0.phase8.net.
  • ns1.phase8.net.
  • ns2.phase8.net.

DNS records live

NS
  • ns0.phase8.net
  • ns1.phase8.net
  • ns2.phase8.net
MX
  • 10 eu-smtp-inbound-1.mimecast.com
  • 10 eu-smtp-inbound-2.mimecast.com
TXT
  • 0ed1fe018a6a07c0645e2c44e3a3e9f6e94170f3e6
  • google-site-verification=qr_DnoV9MU7nBNxr5GUYY27Q_BFFXRbk7pmaPdgg_PA

Email authentication partial

SPF
v=spf1 include:eu._netblocks.mimecast.com include:_spf.psm.knowbe4.com -all
strict (-all)
DMARC
v=DMARC1; p=none; ruf=mailto:dmarc@400.co.uk; rua=mailto:dmarc@400.co.uk;
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDvbOuvfgtVqDiSfHXLlp/f43vQAu7D80IDIxTpbM1yh9ZTuoUwaZPppV18+7STJGIKKuJRvmq14Gh6OGiEvk…
  • selector2: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwQhkXFoUlrGpT+L5fpbr5Ryw4qi+vfg+XlcSET7coO5w6c9d/XL4pPY7Eg54U82OaKhBLYnBv34SgG…
selectors probed

Certificate (current)

R13
from 2026-03-27 to 2026-06-25
Expires in 36 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://400.co.uk/

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

Links to (6)

Linked from (1)