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  4. Colt Technology Services
Energy, telecoms & utilitieswww.colt.net

Colt Technology Services — website check

Multinational telecommunications and data centre services company, founded 1992, based in London. Colt Technology Services’s website (www.colt.net) runs on Webflow. It is delivered through Cloudflare. DMARC is published but only monitors — spoofed mail is not blocked.

58
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.

67
Security
20
Speed & delivery
38
Email & domain
82
SEO & markup
Official siteChecked 22 Oct 2026

About the brand

Founded1992
CountryUnited Kingdom
HeadquartersLondon
IndustryTelecommunications industry
Part ofFidelity Investments
Official websitewww.colt.net

Facts: Wikidata (CC0).

Built with

Cookie consent (CMP)OneTrust
Tag managersGoogle Tag Manager
CDNCloudflarejsDelivr
Website buildersWebflow
JavaScript librariesSwiper
Web fontsGoogle Fonts

Hosting & delivery

Servercloudflare
Network (AS)Cloudflare
HTTP versionHTTP/3
TLSTLS 1.3
CertificateGoogle Trust Services · valid until 2026-12-12
First response9,268 ms
Homepage weight2,532 KB
IPv6no

Email & domain

Mail providerMicrosoft 365
SPFyes
DMARC policyp=none
BIMIno
DNSSECno
CAAno
Verified servicesApple (domain verification), DocuSign, Google Search Console, Microsoft 365

SEO & social

Title24 characters
Meta description147 characters
Canonicalyes
Structured dataAggregateRating, Organization
Language versions7
Open Graphno
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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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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