Skip to content
An independent index of 1,651 brand websites — platforms, security, email and SEO Web indexAdvertiseContact
coolbrands
Find a brand
coolbrands
Get in touch
  1. Home
  2. Brands
  3. Shops & marketplaces
  4. Stanley Gibbons
Shops & marketplacessgbaldwins.com

Stanley Gibbons — website check

Company which specialises in the retailing of collectable postage stamps and similar products, founded in 1856, founded 1856, based in Saint Helier. Stanley Gibbons’s website (sgbaldwins.com) 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.

78
Security
40
Speed & delivery
38
Email & domain
73
SEO & markup
Official siteChecked 23 Oct 2026

About the brand

Founded1856
CountryJersey
HeadquartersSaint Helier
IndustryPhilately
Official websitesgbaldwins.com

Facts: Wikidata (CC0).

Built with

Tag managersGoogle Tag Manager
Web frameworksNext.jsReact
CSS frameworksMUI
Hosting platformsVercel
Web fontsAdobe FontsGoogle Fonts
Monitoring & RUMSentry

Hosting & delivery

ServerVercel
Network (AS)Amazon Web Services
HTTP versionHTTP/3
TLSTLS 1.3
CertificateLet's Encrypt · valid until 2027-01-17
First response3,405 ms
Homepage weight189 KB
IPv6no

Email & domain

Mail providerMimecast
SPFyes
DMARC policyp=none
BIMIno
DNSSECno
CAAno
Verified servicesGoogle Search Console, Microsoft 365

SEO & social

Title48 characters
Meta description126 characters
Canonicalyes
Structured dataOrganization, SearchAction, WebPage, WebSite
Language versions0
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

More shops & marketplaces brands All

BrandWebsitePlatformSecuritySpeed & deliveryEmail & domainSEO & markupIndex
ASOS www.asos.com Sitecore 7810088100 91
Kingfisher www.kingfisher.com Sitecore 100807591 88
Amplifon www.amplifon.com Adobe Experience Manager 100806382 82
Aldi www.aldi.co.uk Nuxt 100608864 79
Harvey Nichols www.harveynichols.com Next.js 891006373 79
House of Fraser www.houseoffraser.co.uk Next.js 89608873 79
John Lewis www.johnlewis.com Next.js 89407591 79
Londis www.londis.co.uk Drupal 100806373 79

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.

Want your brand’s website benchmarked?

We compare your site with your category on security, speed, email and SEO — and fix what lags behind.

Get in touchServices