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3r.co.uk

.uk ok HTTP/1.1 200 539 ms

First seen 2026-06-04 · Last seen 2026-06-18 · crawled 2026-06-18

US · 199.60.103.38 · AS209242 Cloudflare London, LLC

Reputation 100/100

sector tech subsector tech media type blog

HTML metadata

Title
3R Blog
Language
en-gb
Generator
HubSpot
Feeds
active last post 16 days ago

Open Graph

url
https://www.3r.co.uk/blog
title
3R Blog

Contact

Technology

CDN
Cloudflare
CMS
Joomla
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts
Social widgets
  • LinkedIn Widget

Third-party hosts loaded (4)

  • px.ads.linkedin.com×2
  • fonts.googleapis.com×1
  • platform.linkedin.com×1
  • www.googletagmanager.com×1

Social

DNS records live

NS
  • ns39.domaincontrol.com
  • ns40.domaincontrol.com
MX
  • 0 3r-co-uk.mail.protection.outlook.com
TXT
  • 0ed1fe018a2800026996cb41eaae8a9c112d61b631
  • have-i-been-pwned-verification=dweb_d9e7pcqxpr7whnchf6e5dlp9

Email authentication strong

SPF
v=spf1 include:spf.protection.outlook.com include:4448237.spf01.hubspotemail.net -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc-reports@3r.co.uk; ruf=mailto:dmarc-reports@3r.co.uk
policy: quarantine
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCx7bZmDBzL0a25GkLueowhLy8fLzYeStSo2z81/vXT4Aw4GrX/QTeUOzK3j69jfq8sfUelcyEpptXQ4EHYwz…
selectors probed

Certificate (current)

WE1
from 2026-04-25 to 2026-07-24
Expires in 33 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://www.3r.co.uk/blog

present
  • strict-transport-security
  • content-security-policy
  • referrer-policy
findings
  • missing frame protection
  • missing content type protection
  • missing Permissions Policy
Header values
referrer-policy
no-referrer-when-downgrade
content-security-policy
upgrade-insecure-requests
strict-transport-security
max-age=31536000

Links to (4)

Linked from (5)

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