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Banks, insurance & financewww.nationwide.co.uk

Nationwide Building Society — website check

British mutual financial institution and the largest building society in the world, founded 1884, based in Swindon. Nationwide Building Society’s website (www.nationwide.co.uk) runs on Next.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.

89
Security
60
Speed & delivery
75
Email & domain
73
SEO & markup
Official siteChecked 22 Oct 2026

About the brand

Founded1884
CountryUnited Kingdom
HeadquartersSwindon
IndustryFinancial services · Economics of banking
Official websitewww.nationwide.co.uk

Facts: Wikidata (CC0).

UK footprint

421
listed locations
66
regions
348
towns & cities

Listed as “Nationwide Building Society”.

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

AnalyticsAdobe Analytics
Tag managersAdobe Experience Platform Tags
Advertising & pixelsGoogle Marketing Platform (DV360/CM360)
CDNAzure Front Door / CDN
Session replay & heatmapsContentsquare
Web frameworksNext.jsReact
A/B testingAdobe Target
Web fontsGoogle Fonts

Hosting & delivery

Network (AS)Microsoft Azure
HTTP versionHTTP/3
TLSTLS 1.3
CertificateEntrust Limited · valid until 2027-04-18
First response10,938 ms
Homepage weight488 KB
IPv6yes

Email & domain

Mail providerOther
SPFyes
DMARC policyp=reject
BIMIyes
DNSSECno
CAAno
Verified servicesAdobe (Admin Console), Apple (domain verification), Atlassian Cloud, Cisco Webex, Cloudflare (Zero Trust / Pages), Meta Business (domain verification), Google Search Console, Jamf

SEO & social

Title31 characters
Meta description149 characters
Canonicalyes
Structured dataBankOrCreditUnion, Brand, PostalAddress
Language versions0
Open Graphno
Social profiles linkedFacebook, Instagram, Linkedin, Tiktok, 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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PayPal www.paypal.com — 8940100100 88
Schroders www.schroders.com Next.js 1001006391 88
Coutts www.coutts.com Adobe Experience Manager 100607591 85
Lloyds Bank www.lloydsbank.com Adobe Experience Manager 89808882 85
Virgin Money UK uk.virginmoney.com — 1004075100 85
3i www.3i.com — 100807573 82

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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