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Foodwww.colmans.co.uk

Colman's — website check

Manufacturer of mustard and other sauces based in Norwich, England, founded 1814, based in Norwich. Colman's’s website (www.colmans.co.uk) runs on Adobe Experience Manager. There is no DMARC record, so the domain can be spoofed in email.

64
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
13
Email & domain
82
SEO & markup
Official siteChecked 23 Oct 2026

About the brand

Founded1814
CountryNorfolk
HeadquartersNorwich
Official websitewww.colmans.co.uk

Facts: Wikidata (CC0).

Built with

CMSAdobe Experience Manager
Cookie consent (CMP)OneTrust
Tag managersAdobe Experience Platform Tags
JavaScript librariesjQuery
Web fontsGoogle Fonts

Hosting & delivery

Network (AS)Microsoft Azure
HTTP versionHTTP/3
TLSTLS 1.3
CertificateLet's Encrypt · valid until 2026-12-28
First response1,718 ms
Homepage weight483 KB
IPv6no

Email & domain

SPFyes
DMARC policyno
BIMIno
DNSSECno
CAAno
Verified servicesGoogle Search Console

SEO & social

Title42 characters
Meta description102 characters
Canonicalyes
Structured dataBreadcrumbList, ListItem, Organization
Language versions1
Open Graphyes

AI crawlers & robots

AI crawlers blockednone
llms.txtyes
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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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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