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Shops & marketplaceswww.jdsports.co.uk

JD Sports — website check

Sports-fashion retail company, founded 1981. JD Sports’s website (www.jdsports.co.uk) runs on Next.js. DMARC is published but only monitors — spoofed mail is not blocked.

61
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.

89
Security
40
Speed & delivery
38
Email & domain
64
SEO & markup
Official siteChecked 22 Oct 2026

About the brand

Founded1981
IndustryRetail
Official websitewww.jdsports.co.uk

Facts: Wikidata (CC0).

UK footprint

369
listed locations
70
regions
252
towns & cities

Listed as “JD Sports”.

Store counts compiled from public map listings, October 2026. Listings are grouped by the name they carry; a company’s own store count can differ.

Built with

Tag managersGoogle Tag Manager
Web frameworksNext.jsReact
CSS frameworksTailwind CSS
JavaScript librarieswebpack
PaymentsAfterpay / Clearpay
Monitoring & RUMNew Relic

Hosting & delivery

Network (AS)Amazon Web Services
HTTP versionHTTP/3
TLSTLS 1.3
CertificateCertainly · valid until 2026-11-13
First response8,243 ms
Homepage weight1,193 KB
IPv6no

Email & domain

Mail providerMicrosoft 365
SPFyes
DMARC policyp=none
BIMIno
DNSSECno
CAAno
Verified servicesApple (domain verification), Amazon SES / AWS, Meta Business (domain verification), Google Search Console, Microsoft 365

SEO & social

Title30 characters
Meta description114 characters
Canonicalyes
Structured dataOrganization, SearchAction, WebSite
Language versions34
Open Graphyes
Social profiles linkedFacebook, Instagram, Tiktok, Youtube

AI crawlers & robots

AI crawlers blockednone
llms.txtno
ads.txtno
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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John Lewis www.johnlewis.com Next.js 89407591 79
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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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