What powers castors-online.co.uk?
Last seen Jun 2026 · 19 technologies across 11 categories
Advertising
Microsoft Advertising
since Dec 2021
Analytics
Google Analytics
since Jan 2019
Google Call Conversion Tracking
since Jul 2021
Linkedin Insight Tag
since Dec 2025
CDN
Cloudflare
since Nov 2023
Imperva
since Dec 2023
Cookie compliance
CookieYes
since Dec 2024
Ecommerce
Aero Commerce
since Nov 2021
Cart Functionality
since Aug 2020
JavaScript libraries
Miscellaneous
Open Graph
since Jun 2026
PWA
since Nov 2023
Security
Cloudflare Bot Management
since Nov 2023
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Feb 2021
Web servers
Nginx
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
Audience
- 55% desktop
- 41% phone
- 4% tablet
United Kingdom
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
1.23 / 10 · ranked #9,545,311 of all domains
7 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Incapsula
- Weight: 1.5 MB · 61 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Jul 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Open Graph Jun 2026
- detected Linkedin Insight Tag Dec 2025
- detected core-js Oct 2025
- detected Facebook Pixel Oct 2025
- dropped PHP Oct 2025
- dropped Plesk Oct 2025
- dropped core-js Sep 2025