What powers sjr.ac.uk?
Last seen Aug 2026 · 66 technologies across 30 categories
Accessibility
Analytics
CDN
CMS
Comment systems
Databases
Font scripts
Hosting panels
JavaScript frameworks
JavaScript graphics
JavaScript libraries
Live chat
Maps
Marketing automation
Miscellaneous
Operating systems
PaaS
Page builders
Performance
Programming languages
Security
Tag managers
UI frameworks
User onboarding
Web frameworks
Web servers
Webmail
Widgets
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 83% phone
- 17% desktop
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.11 / 10 · ranked #3,307,624 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.9 MB · 140 requests
- WordPress theme: hello-elementor · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- St John Rigby College
- Founded: 1972
- Country: United Kingdom
From the homepage's own structured data (Sep 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Cloudflare (104.19.154.92)
- DNS: ja.net
- Email: Microsoft 365
- Email security: no SPF record, DMARC reject
- SSL: Google Trust Services, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 1,223,779, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| apply.sjr.ac.uk | 35 |
| sjr.ac.uk | 31 |
| hub.sjr.ac.uk | 14 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Site Kit Oct 2025