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  4. Caledonian MacBrayne
Travel & hotelswww.calmac.co.uk

Caledonian MacBrayne — website check

Scottish ferry company, founded 1973, based in Gourock. Caledonian MacBrayne’s website (www.calmac.co.uk) runs on Vue.js. It is delivered through Azure Front Door / CDN. Email from the domain is protected by an enforced DMARC policy.

76
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
60
Speed & delivery
63
Email & domain
73
SEO & markup
Official siteChecked 22 Oct 2026

About the brand

Founded1973
CountryUnited Kingdom
HeadquartersGourock
IndustryTransport
Official websitewww.calmac.co.uk

Facts: Wikidata (CC0).

Built with

Tag managersGoogle Tag Manager
CDNAzure Front Door / CDN
Web frameworksVue.js
VideoYouTube embed

Hosting & delivery

Network (AS)Microsoft Azure
HTTP versionHTTP/3
TLSTLS 1.3
CertificateDigiCert Inc · valid until 2027-03-28
First response5,087 ms
Homepage weight218 KB
IPv6yes

Email & domain

Mail providerMimecast
SPFyes
DMARC policyp=reject
BIMIno
DNSSECno
CAAno
Verified servicesApple (domain verification), DocuSign, Google Search Console, Microsoft 365

SEO & social

Title101 characters
Meta description143 characters
Canonicalyes
Structured datano
Language versions4
Open Graphyes
Social profiles linkedFacebook, Instagram, Linkedin, X, Youtube

AI crawlers & robots

AI crawlers blockednone
llms.txtno
ads.txtno
security.txtyes

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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Butlins www.butlins.com Next.js 100606382 79
KLM www.klm.com Angular 100607573 79
London North Eastern Railway www.lner.co.uk Contentful 89407591 79
National Rail www.nationalrail.co.uk Next.js 100406391 79
Big Bus Tours www.bigbustours.com Adobe Commerce (Magento) 100606373 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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