What powers 
carusostjohn.com?
Last seen Aug 2026 · 17 technologies across 13 categories
Analytics
Hosting
JavaScript Frameworks
JavaScript libraries
Miscellaneous
Operating systems
Programming languages
Security
Tag managers
Web Frameworks
Web Servers
Webmail
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 88% desktop
- 12% phone
United Kingdom
United States
Switzerland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.01 / 10 · ranked #561,726 of all domains
158 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 25 ms |
| CLS | 0.2 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 5.9 MB · 142 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Caruso St John
- Founded: 1990
- Country: United Kingdom
From Wikidata (CC0).
Infrastructure
- Hosted on DigitalOcean (159.65.90.53)
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 765,069, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| carusostjohn.com | 14 |
| www.carusostjohn.com | 8 |
Full technology history →
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