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Media, music & gamesrocksteadyltd.com
Rocksteady Studios — website check
British video game developer, founded 2004, based in London. Rocksteady Studios’s website (rocksteadyltd.com) runs on Nuxt. It is delivered through Amazon CloudFront. Email from the domain is protected by an enforced DMARC policy.
55
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.
44
Security
80
Speed & delivery
75
Email & domain
36
SEO & markup
Official siteChecked 23 Oct 2026
About the brand
Founded2004
CountryUnited Kingdom
HeadquartersLondon
IndustryVideo game industry
Part ofWarner Bros. Games
Official websiterocksteadyltd.com
Facts: Wikidata (CC0).
Built with
AnalyticsGoogle Analytics 4
Cookie consent (CMP)OneTrust
CSS frameworksTailwind CSS
Hosting platformsAmazon S3
Accessibility overlaysUserWay
Hosting & delivery
ServerAmazonS3
Network (AS)Amazon Web Services
HTTP versionHTTP/3
TLSTLS 1.3
CertificateAmazon · valid until 2027-01-13
First response1,461 ms
Homepage weight360 KB
IPv6no
Email & domain
Mail providerMicrosoft 365
SPFyes
DMARC policyp=quarantine
BIMIno
DNSSECno
CAAyes
Verified servicesAdobe (Admin Console), Anthropic, Atlassian Cloud, Box, GlobalSign, Google Search Console, Jamf, Microsoft 365
SEO & social
Title29 characters
Meta description15 characters
Canonicalyes
Structured datano
Language versions1
Open Graphno
Social profiles linkedFacebook, Instagram, X
AI crawlers & robots
AI crawlers blockednone
llms.txtno
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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| Smooth Radio | www.smoothradio.com | — | 89 | 20 | 75 | 100 | 79 |
| Capital | www.capitalfm.com | — | 89 | 20 | 63 | 100 | 76 |
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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