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Fashion & accessorieswww.whistles.com

Whistles — website check

Clothing brand with 46 stores across the UK, founded 1976. Whistles’s website (www.whistles.com) runs on Salesforce Commerce Cloud. It is delivered through cdnjs. Email from the domain is protected by an enforced DMARC policy.

70
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.

100
Security
40
Speed & delivery
63
Email & domain
64
SEO & markup
Official siteChecked 22 Oct 2026

About the brand

Founded1976
CountryUnited Kingdom
IndustryFashion
Official websitewww.whistles.com

Facts: Wikidata (CC0).

UK footprint

50
listed locations
28
regions
40
towns & cities

Listed as “Whistles”.

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

E-commerce platformsSalesforce Commerce Cloud
Tag managersGoogle Tag Manager
CDNcdnjsCloudflarejsDelivr
Session replay & heatmapsHotjar
JavaScript librariesjQuery
A/B testingAB Tasty
PaymentsKlarna
Accessibility overlaysEqualWeb

Hosting & delivery

Servercloudflare
Network (AS)Cloudflare
HTTP versionHTTP/3
TLSTLS 1.3
CertificateLet's Encrypt · valid until 2027-01-18
First response1,735 ms
Homepage weight302 KB
IPv6no

Email & domain

Mail providerMimecast
SPFyes
DMARC policyp=reject
BIMIno
DNSSECno
CAAno
Verified servicesApple (domain verification), Google Search Console, Pinterest

SEO & social

Title55 characters
Meta description159 characters
Canonicalyes
Structured dataOrganization, SearchAction, WebSite
Language versions5
Open Graphno
Social profiles linkedFacebook, Instagram, Pinterest, Tiktok

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

More fashion & accessories brands All

BrandWebsitePlatformSecuritySpeed & deliveryEmail & domainSEO & markupIndex
Lacoste www.lacoste.com Salesforce Commerce Cloud 89608891 85
Rolex www.rolex.com — 100607591 85
Calvin Klein www.calvinklein.ee Next.js 89407591 79
Swarovski www.swarovski.com SAP Commerce Cloud 78608882 79
Berghaus berghaus.com Shopify 89606382 76
Crockett & Jones www.crockettandjones.com Shopify 89606382 76
Dr. Scholl's www.drscholls.com Shopify 89406391 76
Ellesse ellesse.com Shopify 89606382 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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