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Tech & gadgetswww.arm.com

Arm Holdings — website check

British multinational semiconductor and software design company, founded 1990, based in Cambridge. Arm Holdings’s website (www.arm.com) runs on Sitecore. It is delivered through Akamai. DMARC is published but only monitors — spoofed mail is not blocked.

Logo: ARM Holdings · Public domain · Wikimedia Commons
73
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
80
Speed & delivery
50
Email & domain
73
SEO & markup
Official siteChecked 22 Oct 2026

About the brand

Founded1990
CountryUnited Kingdom
HeadquartersCambridge
Part ofSoftBank Group
Official websitewww.arm.com

Facts: Wikidata (CC0).

Built with

CMSSitecore
Cookie consent (CMP)OneTrust
Tag managersAdobe Experience Platform Tags
CDNAkamai
Web fontsGoogle Fonts
Site searchCoveo

Hosting & delivery

Network (AS)Arm As
HTTP versionHTTP/3
TLSTLS 1.3
CertificateGlobalSign nv-sa · valid until 2027-04-18
First response947 ms
Homepage weight534 KB
IPv6no

Email & domain

Mail providerMicrosoft 365
SPFyes
DMARC policyp=none
BIMIno
DNSSECno
CAAyes
Verified servicesAnthropic, Apple (domain verification), Atlassian Cloud, DocuSign, Meta Business (domain verification), GlobalSign, Google Search Console, Jamf

SEO & social

Title35 characters
Meta description120 characters
Canonicalyes
Structured datano
Language versions5
Open Graphyes
Social profiles linkedFacebook, Instagram, Linkedin, X, Youtube

AI crawlers & robots

AI crawlers blockednone
llms.txtyes
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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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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