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Media, music & gameswww.channel4.com

E4 — website check

British digital television channel, founded 2001, based in London. E4’s website is www.channel4.com; we did not detect a known CMS or shop platform. It is delivered through Akamai. Email from the domain is protected by an enforced DMARC policy.

Logo: Animoshows · CC BY-SA 3.0 · Wikimedia Commons
67
Brand Web Indexout of 100

Share of 26 technical checks the site passes: security, speed, email and SEO. A measurement of the website — not a popularity ranking.

67
Security
80
Speed & delivery
63
Email & domain
64
SEO & markup
Official siteChecked 23 Oct 2026

About the brand

Founded2001
CountryUnited Kingdom
HeadquartersLondon
Official websitewww.channel4.com

Facts: Wikidata (CC0).

Built with

A/B testingOptimizely
Security & bot protectionAkamai Bot Manager

Hosting & delivery

Network (AS)Amazon Web Services
HTTP versionHTTP/3
TLSTLS 1.3
CertificateDigiCert Inc · valid until 2026-11-23
First response1,316 ms
Homepage weight14 KB
IPv6no

Email & domain

Mail providerGoogle Workspace
SPFyes
DMARC policyp=reject
BIMIno
DNSSECno
CAAno
Verified servicesMeta Business (domain verification), Google Search Console

SEO & social

Title34 characters
Meta description73 characters
Canonicalyes
Structured datano
Language versions0
Open Graphno

AI crawlers & robots

AI crawlers blockedGPTBot, ChatGPT-User, OAI-SearchBot, ClaudeBot, anthropic-ai, Claude-Web, Google-Extended, CCBot
llms.txtno
ads.txtyes
security.txtno

Checklist

Security

  • HTTPS by default
  • HSTS header
  • TLS 1.3
  • Content-Security-Policy
  • X-Content-Type-Options
  • Referrer-Policy

Speed & delivery

  • HTTP/3
  • IPv6
  • First response under 1.5 s
  • Homepage under 1.5 MB

Email & domain

  • SPF record
  • DMARC record
  • DMARC enforced (quarantine / reject)
  • BIMI logo record
  • DNSSEC
  • CAA record

SEO & markup

  • Title tag 10–70 characters
  • Meta description
  • Canonical link
  • Exactly one H1
  • Structured data (JSON-LD)
  • Open Graph title and image
  • All images have alt text
  • XML sitemap
  • robots.txt
  • security.txt

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London Review of Books www.lrb.co.uk — 100407591 82
Time Out www.timeout.com — 100807573 82
Classic FM www.classicfm.com — 892075100 79
LBC www.lbc.co.uk — 100207591 79
Smooth Radio www.smoothradio.com — 892075100 79
Capital www.capitalfm.com — 892063100 76

Data from our own crawler: homepage, DNS, TLS and robots.txt of each brand’s official website. coolbrands.uk.com is an independent catalogue. It is not affiliated with Superbrands (UK) Ltd or the CoolBrands® awards programme, and does not publish their results.

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