What powers esl.ac.uk?
Last seen Jun 2026 · 19 technologies across 11 categories
CDN
Cloudflare
since May 2024
CMS
Prismic
since Sep 2024
JavaScript frameworks
Miscellaneous
Open Graph
since May 2024
Webpack
since May 2024
PaaS
Vercel
since May 2024
Performance
Priority Hints
since May 2024
Programming languages
Node.js
since May 2024
Security
Cloudflare Bot Management
since May 2024
HSTS
since May 2024
UI frameworks
Headless UI
since May 2024
Radix UI
since May 2024
shadcn/ui
since May 2024
Tailwind CSS
since May 2024
Video players
Vimeo
since May 2024
Webmail
Apple iCloud Mail
since Jun 2024
Microsoft 365
since May 2024
Audience
- 59% desktop
- 41% phone
United Kingdom
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.13 / 10 · ranked #10,673,048 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Vercel
- Weight: 31.1 MB · 45 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Priority Hints Mar 2026
- dropped Priority Hints Feb 2026